Hi,
I am using eclipse kepler:
Eclipse IDE for C/C++ Developers
Version: Kepler Service Release 2
Build id: 20140224-0627
startexplorer plug-in 1.5.1.201310182147.
I added new custom command:

When I try to execute it on resource it is disabled and does not work, no errors in the logs:

I would appreciate your help.
Thanks,
Yevgeny