Unable to find the ssh

[codemonk98]

after making the coordinator, agents, manager i tried executing the lancet-tool/coordinator/coordinator executable file.

However it gave the following error
Unable to find private ssh key at path '/home/myname/.ssh/id_rsa'
stat /home/myname/.ssh/id_rsa: no such file or directory

I don't know why this error is happening.
In addition to this it is really helpful, if some tutorial sort of thing is available to use this tool. (Apart from the paper).
I'm not using ssh, trying things in local system.

Thanks in advance