Exception AttributeError out of nowhere

[trinaldi]

I've been using fluxgui for a long time. Today after a reboot I got this message running it manually from console:

fluxgui is already running, exiting
Exception AttributeError: AttributeError("'FluxGUI' object has no attribute 'xflux_controller'",) in <bound method FluxGUI.del of <main.FluxGUI object at 0x7f4e0679b750>> ignored

Well, fluxgui is not running.
xflux works flawleslly

uname -a:
Linux tiago-linuxbox 3.18.0-031800-generic #201412071935 SMP Mon Dec 8 00:36:34 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
Ubuntu 14.04.1

[yankelahiany]

I have the same error coming from nowhere, here is the complete return when I try to launch fluxgui from the terminal:

(fluxapp.py:7152): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",

(fluxapp.py:7152): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",

(fluxapp.py:7152): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",

(fluxapp.py:7152): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",

(fluxapp.py:7152): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
Gtk-Message: Failed to load module "canberra-gtk-module"
fluxgui is already running, exiting
Exception AttributeError: AttributeError("'FluxGUI' object has no attribute 'xflux_controller'",) in method FluxGUI.del of <main.FluxGUI object at 0x7fed728d8f90>> ignored

As mentionned above, xflux is working good.

[jontis]

Same? error, flux was working fine for months, then stopped working.

starting fluxgui from console gives:
fluxgui is already running, exiting
Exception AttributeError: AttributeError("'FluxGUI' object has no attribute 'xflux_controller'",) in <bound method FluxGUI.del of <main.FluxGUI object at 0x7f8ab38ff2d0>> ignored

xflux seems to work.
flux.x86_64 1.0-2.fc22
Linux 4.1.6-201.fc22.x86_64
Fedora 22

[RomuloOliveira]

Same here. I fixed it removing the pidfile and running it again. Source: http://soledadpenades.com/2011/08/01/fix-the-fluxgui-is-already-running-exiting-error/

rm ~/.fluxgui.pid

[arianmaykon]

Thanks @RomuloOliveira it helped me :)

[jdemonasterio]

Yep @RomuloOliveira that was it. Thanks

[nrfulton]

The correct behavior, I think, is printing out the message:

fluxgui is already running, exiting

and then exiting without modifying the PID file or showing additional (IMO distracting) information.

The AttributeError is currently shown as well because:

• FluxGUI.init calls FluxGUI.check_pid() before defining self.xflux_controller
• FluxGUI.check_pid() results in a call to FluxGUI.del
• FluxGUI.del calls FluxGUI.exit, which assumes that xflux_controller is defined.

I have a hack in my fork that shows (only) the error message; see:

nrfulton@641c12d

Caveat emptor; not tested.

(Also, this is somehow related to Issue #49. I'm not sure if there's a fluxgui-specific problem here, or if this is just the usual thing that happens with pid files sometimes. I encounter this error every so often. I assume the PID file exists due to an improper system shutdown, flux is not running, and some other process now has the PID in the fluxgui PID file. I'm using /var/lock instead of ~ now to see if the problem goes away.)

(edit 1: concision & clarity.)
(edit 2: added note about /var/lock)

[josephdviviano]

This is still an issue as of 8th Dec 2015.

[quantrung9]

thanks @RomuloOliveira, still an issue on Ubuntu Wily.

[th0rgall]

Thanks for the workaround @RomuloOliveira, still had this problem in an unofficial Ubuntu Xenial build.

[ojacquemart]

Thanks @RomuloOliveira ! :)