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no backend? #127

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moorlag opened this issue Jan 4, 2020 · 5 comments
Closed

no backend? #127

moorlag opened this issue Jan 4, 2020 · 5 comments
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Type: Installation issue

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@moorlag
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moorlag commented Jan 4, 2020 •
edited by quentinguidee
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No backend?

I've installed using the guide here. I tried to change my username to something without a space in between first- and last name. The error message is long and in the summary. Where should I be looking to solve the problem?

Error code 
Omega % make epsilon_flash
DFUSE   epsilon.dfu
CXX     ion/src/device/shared/usb/dfu_xip.o
CXX     ion/src/device/flasher/main.o
CXX     ion/src/device/flasher/display_light.o
LD      flasher.light.elf
DFUSE   flasher.light.dfu
Traceback (most recent call last):
  File "build/device/dfu.py", line 598, in <module>
    main()
  File "build/device/dfu.py", line 575, in main
    list_dfu_devices(__Identifiers)
  File "build/device/dfu.py", line 472, in list_dfu_devices
    devices = get_dfu_devices_with_vid_pids(__Identifiers)
  File "build/device/dfu.py", line 100, in get_dfu_devices_with_vid_pids
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 100, in <listcomp>
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 431, in get_dfu_devices
    return list(usb.core.find(*args, find_all=True,
  File "/Users/ramonmoorlag/Omega/build/device/usb/core.py", line 1265, in find
    raise NoBackendError('No backend available')
usb.core.NoBackendError: No backend available
DFU     epsilon_flash
INFO    About to flash your device. Please plug your device to your computer
        using an USB cable and press at the same time the 6 key and the RESET
        button on the back of your device.
Traceback (most recent call last):
  File "build/device/dfu.py", line 598, in <module>
    main()
  File "build/device/dfu.py", line 575, in main
    list_dfu_devices(__Identifiers)
  File "build/device/dfu.py", line 472, in list_dfu_devices
    devices = get_dfu_devices_with_vid_pids(__Identifiers)
  File "build/device/dfu.py", line 100, in get_dfu_devices_with_vid_pids
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 100, in <listcomp>
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 431, in get_dfu_devices
    return list(usb.core.find(*args, find_all=True,
  File "/Users/ramonmoorlag/Omega/build/device/usb/core.py", line 1265, in find
    raise NoBackendError('No backend available')
usb.core.NoBackendError: No backend available
Traceback (most recent call last):
  File "build/device/dfu.py", line 598, in <module>
    main()
  File "build/device/dfu.py", line 575, in main
    list_dfu_devices(__Identifiers)
  File "build/device/dfu.py", line 472, in list_dfu_devices
    devices = get_dfu_devices_with_vid_pids(__Identifiers)
  File "build/device/dfu.py", line 100, in get_dfu_devices_with_vid_pids
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 100, in <listcomp>
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 431, in get_dfu_devices
    return list(usb.core.find(*args, find_all=True,
  File "/Users/ramonmoorlag/Omega/build/device/usb/core.py", line 1265, in find
    raise NoBackendError('No backend available')
usb.core.NoBackendError: No backend available
Traceback (most recent call last):
  File "build/device/dfu.py", line 598, in <module>
    main()
  File "build/device/dfu.py", line 575, in main
    list_dfu_devices(__Identifiers)
  File "build/device/dfu.py", line 472, in list_dfu_devices
    devices = get_dfu_devices_with_vid_pids(__Identifiers)
  File "build/device/dfu.py", line 100, in get_dfu_devices_with_vid_pids
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 100, in <listcomp>
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 431, in get_dfu_devices
    return list(usb.core.find(*args, find_all=True,
  File "/Users/ramonmoorlag/Omega/build/device/usb/core.py", line 1265, in find
    raise NoBackendError('No backend available')
usb.core.NoBackendError: No backend available
Traceback (most recent call last):
  File "build/device/dfu.py", line 598, in <module>
    main()
  File "build/device/dfu.py", line 575, in main
    list_dfu_devices(__Identifiers)
  File "build/device/dfu.py", line 472, in list_dfu_devices
    devices = get_dfu_devices_with_vid_pids(__Identifiers)
  File "build/device/dfu.py", line 100, in get_dfu_devices_with_vid_pids
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 100, in <listcomp>
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 431, in get_dfu_devices
    return list(usb.core.find(*args, find_all=True,
  File "/Users/ramonmoorlag/Omega/build/device/usb/core.py", line 1265, in find
    raise NoBackendError('No backend available')
usb.core.NoBackendError: No backend available
Traceback (most recent call last):
  File "build/device/dfu.py", line 598, in <module>
    main()
  File "build/device/dfu.py", line 575, in main
    list_dfu_devices(__Identifiers)
  File "build/device/dfu.py", line 472, in list_dfu_devices
    devices = get_dfu_devices_with_vid_pids(__Identifiers)
  File "build/device/dfu.py", line 100, in get_dfu_devices_with_vid_pids
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 100, in <listcomp>
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 431, in get_dfu_devices
    return list(usb.core.find(*args, find_all=True,
  File "/Users/ramonmoorlag/Omega/build/device/usb/core.py", line 1265, in find
    raise NoBackendError('No backend available')
usb.core.NoBackendError: No backend available
Traceback (most recent call last):
  File "build/device/dfu.py", line 598, in <module>
    main()
  File "build/device/dfu.py", line 575, in main
    list_dfu_devices(__Identifiers)
  File "build/device/dfu.py", line 472, in list_dfu_devices
    devices = get_dfu_devices_with_vid_pids(__Identifiers)
  File "build/device/dfu.py", line 100, in get_dfu_devices_with_vid_pids
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 100, in <listcomp>
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 431, in get_dfu_devices
    return list(usb.core.find(*args, find_all=True,
  File "/Users/ramonmoorlag/Omega/build/device/usb/core.py", line 1265, in find
    raise NoBackendError('No backend available')
usb.core.NoBackendError: No backend available
Traceback (most recent call last):
  File "build/device/dfu.py", line 598, in <module>
    main()
  File "build/device/dfu.py", line 575, in main
    list_dfu_devices(__Identifiers)
  File "build/device/dfu.py", line 472, in list_dfu_devices
    devices = get_dfu_devices_with_vid_pids(__Identifiers)
  File "build/device/dfu.py", line 100, in get_dfu_devices_with_vid_pids
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 100, in <listcomp>
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 431, in get_dfu_devices
    return list(usb.core.find(*args, find_all=True,
  File "/Users/ramonmoorlag/Omega/build/device/usb/core.py", line 1265, in find
    raise NoBackendError('No backend available')
usb.core.NoBackendError: No backend available
Traceback (most recent call last):
  File "build/device/dfu.py", line 598, in <module>
    main()
  File "build/device/dfu.py", line 575, in main
    list_dfu_devices(__Identifiers)
  File "build/device/dfu.py", line 472, in list_dfu_devices
    devices = get_dfu_devices_with_vid_pids(__Identifiers)
  File "build/device/dfu.py", line 100, in get_dfu_devices_with_vid_pids
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 100, in <listcomp>
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 431, in get_dfu_devices
    return list(usb.core.find(*args, find_all=True,
  File "/Users/ramonmoorlag/Omega/build/device/usb/core.py", line 1265, in find
    raise NoBackendError('No backend available')
usb.core.NoBackendError: No backend available
Traceback (most recent call last):
  File "build/device/dfu.py", line 598, in <module>
    main()
  File "build/device/dfu.py", line 575, in main
    list_dfu_devices(__Identifiers)
  File "build/device/dfu.py", line 472, in list_dfu_devices
    devices = get_dfu_devices_with_vid_pids(__Identifiers)
  File "build/device/dfu.py", line 100, in get_dfu_devices_with_vid_pids
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 100, in <listcomp>
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 431, in get_dfu_devices
    return list(usb.core.find(*args, find_all=True,
  File "/Users/ramonmoorlag/Omega/build/device/usb/core.py", line 1265, in find
    raise NoBackendError('No backend available')
usb.core.NoBackendError: No backend available
Traceback (most recent call last):
  File "build/device/dfu.py", line 598, in <module>
    main()
  File "build/device/dfu.py", line 575, in main
    list_dfu_devices(__Identifiers)
  File "build/device/dfu.py", line 472, in list_dfu_devices
    devices = get_dfu_devices_with_vid_pids(__Identifiers)
  File "build/device/dfu.py", line 100, in get_dfu_devices_with_vid_pids
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 100, in <listcomp>
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 431, in get_dfu_devices
    return list(usb.core.find(*args, find_all=True,
  File "/Users/ramonmoorlag/Omega/build/device/usb/core.py", line 1265, in find
    raise NoBackendError('No backend available')
usb.core.NoBackendError: No backend available
Traceback (most recent call last):
  File "build/device/dfu.py", line 598, in <module>
    main()
  File "build/device/dfu.py", line 575, in main
    list_dfu_devices(__Identifiers)
  File "build/device/dfu.py", line 472, in list_dfu_devices
    devices = get_dfu_devices_with_vid_pids(__Identifiers)
  File "build/device/dfu.py", line 100, in get_dfu_devices_with_vid_pids
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 100, in <listcomp>
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 431, in get_dfu_devices
    return list(usb.core.find(*args, find_all=True,
  File "/Users/ramonmoorlag/Omega/build/device/usb/core.py", line 1265, in find
    raise NoBackendError('No backend available')
usb.core.NoBackendError: No backend available
Traceback (most recent call last):
  File "build/device/dfu.py", line 598, in <module>
    main()
  File "build/device/dfu.py", line 575, in main
    list_dfu_devices(__Identifiers)
  File "build/device/dfu.py", line 472, in list_dfu_devices
    devices = get_dfu_devices_with_vid_pids(__Identifiers)
  File "build/device/dfu.py", line 100, in get_dfu_devices_with_vid_pids
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 100, in <listcomp>
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 431, in get_dfu_devices
    return list(usb.core.find(*args, find_all=True,
  File "/Users/ramonmoorlag/Omega/build/device/usb/core.py", line 1265, in find
    raise NoBackendError('No backend available')
usb.core.NoBackendError: No backend available
Traceback (most recent call last):
  File "build/device/dfu.py", line 598, in <module>
    main()
  File "build/device/dfu.py", line 575, in main
    list_dfu_devices(__Identifiers)
  File "build/device/dfu.py", line 472, in list_dfu_devices
    devices = get_dfu_devices_with_vid_pids(__Identifiers)
  File "build/device/dfu.py", line 100, in get_dfu_devices_with_vid_pids
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 100, in <listcomp>
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 431, in get_dfu_devices
    return list(usb.core.find(*args, find_all=True,
  File "/Users/ramonmoorlag/Omega/build/device/usb/core.py", line 1265, in find
    raise NoBackendError('No backend available')
usb.core.NoBackendError: No backend available
Traceback (most recent call last):
  File "build/device/dfu.py", line 598, in <module>
    main()
  File "build/device/dfu.py", line 575, in main
    list_dfu_devices(__Identifiers)
  File "build/device/dfu.py", line 472, in list_dfu_devices
    devices = get_dfu_devices_with_vid_pids(__Identifiers)
  File "build/device/dfu.py", line 100, in get_dfu_devices_with_vid_pids
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 100, in <listcomp>
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 431, in get_dfu_devices
    return list(usb.core.find(*args, find_all=True,
  File "/Users/ramonmoorlag/Omega/build/device/usb/core.py", line 1265, in find
    raise NoBackendError('No backend available')
usb.core.NoBackendError: No backend available
Traceback (most recent call last):
  File "build/device/dfu.py", line 598, in <module>
    main()
  File "build/device/dfu.py", line 575, in main
    list_dfu_devices(__Identifiers)
  File "build/device/dfu.py", line 472, in list_dfu_devices
    devices = get_dfu_devices_with_vid_pids(__Identifiers)
  File "build/device/dfu.py", line 100, in get_dfu_devices_with_vid_pids
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 100, in <listcomp>
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 431, in get_dfu_devices
    return list(usb.core.find(*args, find_all=True,
  File "/Users/ramonmoorlag/Omega/build/device/usb/core.py", line 1265, in find
    raise NoBackendError('No backend available')
usb.core.NoBackendError: No backend available
Traceback (most recent call last):
  File "build/device/dfu.py", line 598, in <module>
    main()
  File "build/device/dfu.py", line 575, in main
    list_dfu_devices(__Identifiers)
  File "build/device/dfu.py", line 472, in list_dfu_devices
    devices = get_dfu_devices_with_vid_pids(__Identifiers)
  File "build/device/dfu.py", line 100, in get_dfu_devices_with_vid_pids
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 100, in <listcomp>
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 431, in get_dfu_devices
    return list(usb.core.find(*args, find_all=True,
  File "/Users/ramonmoorlag/Omega/build/device/usb/core.py", line 1265, in find
    raise NoBackendError('No backend available')
usb.core.NoBackendError: No backend available
Traceback (most recent call last):
  File "build/device/dfu.py", line 598, in <module>
    main()
  File "build/device/dfu.py", line 575, in main
    list_dfu_devices(__Identifiers)
  File "build/device/dfu.py", line 472, in list_dfu_devices
    devices = get_dfu_devices_with_vid_pids(__Identifiers)
  File "build/device/dfu.py", line 100, in get_dfu_devices_with_vid_pids
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 100, in <listcomp>
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 431, in get_dfu_devices
    return list(usb.core.find(*args, find_all=True,
  File "/Users/ramonmoorlag/Omega/build/device/usb/core.py", line 1265, in find
    raise NoBackendError('No backend available')
usb.core.NoBackendError: No backend available
Traceback (most recent call last):
  File "build/device/dfu.py", line 598, in <module>
    main()
  File "build/device/dfu.py", line 575, in main
    list_dfu_devices(__Identifiers)
  File "build/device/dfu.py", line 472, in list_dfu_devices
    devices = get_dfu_devices_with_vid_pids(__Identifiers)
  File "build/device/dfu.py", line 100, in get_dfu_devices_with_vid_pids
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 100, in <listcomp>
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 431, in get_dfu_devices
    return list(usb.core.find(*args, find_all=True,
  File "/Users/ramonmoorlag/Omega/build/device/usb/core.py", line 1265, in find
    raise NoBackendError('No backend available')
usb.core.NoBackendError: No backend available
Traceback (most recent call last):
  File "build/device/dfu.py", line 598, in <module>
    main()
  File "build/device/dfu.py", line 575, in main
    list_dfu_devices(__Identifiers)
  File "build/device/dfu.py", line 472, in list_dfu_devices
    devices = get_dfu_devices_with_vid_pids(__Identifiers)
  File "build/device/dfu.py", line 100, in get_dfu_devices_with_vid_pids
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 100, in <listcomp>
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 431, in get_dfu_devices
    return list(usb.core.find(*args, find_all=True,
  File "/Users/ramonmoorlag/Omega/build/device/usb/core.py", line 1265, in find
    raise NoBackendError('No backend available')
usb.core.NoBackendError: No backend available
Traceback (most recent call last):
  File "build/device/dfu.py", line 598, in <module>
    main()
  File "build/device/dfu.py", line 575, in main
    list_dfu_devices(__Identifiers)
  File "build/device/dfu.py", line 472, in list_dfu_devices
    devices = get_dfu_devices_with_vid_pids(__Identifiers)
  File "build/device/dfu.py", line 100, in get_dfu_devices_with_vid_pids
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 100, in <listcomp>
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 431, in get_dfu_devices
    return list(usb.core.find(*args, find_all=True,
  File "/Users/ramonmoorlag/Omega/build/device/usb/core.py", line 1265, in find
    raise NoBackendError('No backend available')
usb.core.NoBackendError: No backend available
Traceback (most recent call last):
  File "build/device/dfu.py", line 598, in <module>
    main()
  File "build/device/dfu.py", line 575, in main
    list_dfu_devices(__Identifiers)
  File "build/device/dfu.py", line 472, in list_dfu_devices
    devices = get_dfu_devices_with_vid_pids(__Identifiers)
  File "build/device/dfu.py", line 100, in get_dfu_devices_with_vid_pids
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 100, in <listcomp>
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 431, in get_dfu_devices
    return list(usb.core.find(*args, find_all=True,
  File "/Users/ramonmoorlag/Omega/build/device/usb/core.py", line 1265, in find
    raise NoBackendError('No backend available')
usb.core.NoBackendError: No backend available
Traceback (most recent call last):
  File "build/device/dfu.py", line 598, in <module>
    main()
  File "build/device/dfu.py", line 575, in main
    list_dfu_devices(__Identifiers)
  File "build/device/dfu.py", line 472, in list_dfu_devices
    devices = get_dfu_devices_with_vid_pids(__Identifiers)
  File "build/device/dfu.py", line 100, in get_dfu_devices_with_vid_pids
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 100, in <listcomp>
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 431, in get_dfu_devices
    return list(usb.core.find(*args, find_all=True,
  File "/Users/ramonmoorlag/Omega/build/device/usb/core.py", line 1265, in find
    raise NoBackendError('No backend available')
usb.core.NoBackendError: No backend available
Traceback (most recent call last):
  File "build/device/dfu.py", line 598, in <module>
    main()
  File "build/device/dfu.py", line 575, in main
    list_dfu_devices(__Identifiers)
  File "build/device/dfu.py", line 472, in list_dfu_devices
    devices = get_dfu_devices_with_vid_pids(__Identifiers)
  File "build/device/dfu.py", line 100, in get_dfu_devices_with_vid_pids
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 100, in <listcomp>
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 431, in get_dfu_devices
    return list(usb.core.find(*args, find_all=True,
  File "/Users/ramonmoorlag/Omega/build/device/usb/core.py", line 1265, in find
    raise NoBackendError('No backend available')
usb.core.NoBackendError: No backend available
Traceback (most recent call last):
  File "build/device/dfu.py", line 598, in <module>
    main()
  File "build/device/dfu.py", line 575, in main
    list_dfu_devices(__Identifiers)
  File "build/device/dfu.py", line 472, in list_dfu_devices
    devices = get_dfu_devices_with_vid_pids(__Identifiers)
  File "build/device/dfu.py", line 100, in get_dfu_devices_with_vid_pids
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 100, in <listcomp>
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 431, in get_dfu_devices
    return list(usb.core.find(*args, find_all=True,
  File "/Users/ramonmoorlag/Omega/build/device/usb/core.py", line 1265, in find
    raise NoBackendError('No backend available')
usb.core.NoBackendError: No backend available
Traceback (most recent call last):
  File "build/device/dfu.py", line 598, in <module>
    main()
  File "build/device/dfu.py", line 575, in main
    list_dfu_devices(__Identifiers)
  File "build/device/dfu.py", line 472, in list_dfu_devices
    devices = get_dfu_devices_with_vid_pids(__Identifiers)
  File "build/device/dfu.py", line 100, in get_dfu_devices_with_vid_pids
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 100, in <listcomp>
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 431, in get_dfu_devices
    return list(usb.core.find(*args, find_all=True,
  File "/Users/ramonmoorlag/Omega/build/device/usb/core.py", line 1265, in find
    raise NoBackendError('No backend available')
usb.core.NoBackendError: No backend available
Traceback (most recent call last):
  File "build/device/dfu.py", line 598, in <module>
    main()
  File "build/device/dfu.py", line 575, in main
    list_dfu_devices(__Identifiers)
  File "build/device/dfu.py", line 472, in list_dfu_devices
    devices = get_dfu_devices_with_vid_pids(__Identifiers)
  File "build/device/dfu.py", line 100, in get_dfu_devices_with_vid_pids
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 100, in <listcomp>
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 431, in get_dfu_devices
    return list(usb.core.find(*args, find_all=True,
  File "/Users/ramonmoorlag/Omega/build/device/usb/core.py", line 1265, in find
    raise NoBackendError('No backend available')
usb.core.NoBackendError: No backend available
Traceback (most recent call last):
  File "build/device/dfu.py", line 598, in <module>
    main()
  File "build/device/dfu.py", line 575, in main
    list_dfu_devices(__Identifiers)
  File "build/device/dfu.py", line 472, in list_dfu_devices
    devices = get_dfu_devices_with_vid_pids(__Identifiers)
  File "build/device/dfu.py", line 100, in get_dfu_devices_with_vid_pids
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 100, in <listcomp>
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 431, in get_dfu_devices
    return list(usb.core.find(*args, find_all=True,
  File "/Users/ramonmoorlag/Omega/build/device/usb/core.py", line 1265, in find
    raise NoBackendError('No backend available')
usb.core.NoBackendError: No backend available
Traceback (most recent call last):
  File "build/device/dfu.py", line 598, in <module>
    main()
  File "build/device/dfu.py", line 575, in main
    list_dfu_devices(__Identifiers)
  File "build/device/dfu.py", line 472, in list_dfu_devices
    devices = get_dfu_devices_with_vid_pids(__Identifiers)
  File "build/device/dfu.py", line 100, in get_dfu_devices_with_vid_pids
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 100, in <listcomp>
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 431, in get_dfu_devices
    return list(usb.core.find(*args, find_all=True,
  File "/Users/ramonmoorlag/Omega/build/device/usb/core.py", line 1265, in find
    raise NoBackendError('No backend available')
usb.core.NoBackendError: No backend available
Traceback (most recent call last):
  File "build/device/dfu.py", line 598, in <module>
    main()
  File "build/device/dfu.py", line 575, in main
    list_dfu_devices(__Identifiers)
  File "build/device/dfu.py", line 472, in list_dfu_devices
    devices = get_dfu_devices_with_vid_pids(__Identifiers)
  File "build/device/dfu.py", line 100, in get_dfu_devices_with_vid_pids
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 100, in <listcomp>
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 431, in get_dfu_devices
    return list(usb.core.find(*args, find_all=True,
  File "/Users/ramonmoorlag/Omega/build/device/usb/core.py", line 1265, in find
    raise NoBackendError('No backend available')
usb.core.NoBackendError: No backend available
Traceback (most recent call last):
  File "build/device/dfu.py", line 598, in <module>
    main()
  File "build/device/dfu.py", line 575, in main
    list_dfu_devices(__Identifiers)
  File "build/device/dfu.py", line 472, in list_dfu_devices
    devices = get_dfu_devices_with_vid_pids(__Identifiers)
  File "build/device/dfu.py", line 100, in get_dfu_devices_with_vid_pids
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 100, in <listcomp>
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 431, in get_dfu_devices
    return list(usb.core.find(*args, find_all=True,
  File "/Users/ramonmoorlag/Omega/build/device/usb/core.py", line 1265, in find
    raise NoBackendError('No backend available')
usb.core.NoBackendError: No backend available
Traceback (most recent call last):
  File "build/device/dfu.py", line 598, in <module>
    main()
  File "build/device/dfu.py", line 575, in main
    list_dfu_devices(__Identifiers)
  File "build/device/dfu.py", line 472, in list_dfu_devices
    devices = get_dfu_devices_with_vid_pids(__Identifiers)
  File "build/device/dfu.py", line 100, in get_dfu_devices_with_vid_pids
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 100, in <listcomp>
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 431, in get_dfu_devices
    return list(usb.core.find(*args, find_all=True,
  File "/Users/ramonmoorlag/Omega/build/device/usb/core.py", line 1265, in find
    raise NoBackendError('No backend available')
usb.core.NoBackendError: No backend available
Traceback (most recent call last):
  File "build/device/dfu.py", line 598, in <module>
    main()
  File "build/device/dfu.py", line 575, in main
    list_dfu_devices(__Identifiers)
  File "build/device/dfu.py", line 472, in list_dfu_devices
    devices = get_dfu_devices_with_vid_pids(__Identifiers)
  File "build/device/dfu.py", line 100, in get_dfu_devices_with_vid_pids
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 100, in <listcomp>
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 431, in get_dfu_devices
    return list(usb.core.find(*args, find_all=True,
  File "/Users/ramonmoorlag/Omega/build/device/usb/core.py", line 1265, in find
    raise NoBackendError('No backend available')
usb.core.NoBackendError: No backend available
Traceback (most recent call last):
  File "build/device/dfu.py", line 598, in <module>
    main()
  File "build/device/dfu.py", line 575, in main
    list_dfu_devices(__Identifiers)
  File "build/device/dfu.py", line 472, in list_dfu_devices
    devices = get_dfu_devices_with_vid_pids(__Identifiers)
  File "build/device/dfu.py", line 100, in get_dfu_devices_with_vid_pids
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 100, in <listcomp>
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 431, in get_dfu_devices
    return list(usb.core.find(*args, find_all=True,
  File "/Users/ramonmoorlag/Omega/build/device/usb/core.py", line 1265, in find
    raise NoBackendError('No backend available')
usb.core.NoBackendError: No backend available
Traceback (most recent call last):
  File "build/device/dfu.py", line 598, in <module>
    main()
  File "build/device/dfu.py", line 575, in main
    list_dfu_devices(__Identifiers)
  File "build/device/dfu.py", line 472, in list_dfu_devices
    devices = get_dfu_devices_with_vid_pids(__Identifiers)
  File "build/device/dfu.py", line 100, in get_dfu_devices_with_vid_pids
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 100, in <listcomp>
    devices = [get_dfu_devices(idVendor=vid_pid["VID"],idProduct=vid_pid["PID"]) for vid_pid in vid_pids]
  File "build/device/dfu.py", line 431, in get_dfu_devices
    return list(usb.core.find(*args, find_all=True,
  File "/Users/ramonmoorlag/Omega/build/device/usb/core.py", line 1265, in find
    raise NoBackendError('No backend available')
usb.core.NoBackendError: No backend available
Traceback (most recent call last):
  File "build/device/dfu.py", line 598, in <module>
    main()

Environment

  • Omega Version: not installed
@MixedMatched
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MixedMatched commented Jan 4, 2020 •
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Can you give some platform details (OS, shell, etc.)? It seems like you don't have a compatible USB library (libusb, openusb) installed for your OS.

@moorlag
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moorlag commented Jan 5, 2020

macOS Cataline (10.15.2) & terminal 2.10

@quentinguidee
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quentinguidee commented Jan 5, 2020 •
edited
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I'm on macOS Catalina too, so I can confirm everything's working on this OS. First of all, did you execute brew install numworks/tap/epsilon-sdk ?

Edit: You can also join our Discord (#16) to get help 😉 (channel #omega-support)

@quentinguidee
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Hi! No news on this?

@quentinguidee
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I close this issue, feel free to reopen if you still have the problem 😉

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@moorlag @quentinguidee @MixedMatched