[Buildbot-devel] Cannot start remote command when buildslave parent processname contains spaces

Harry Borkhuis harry at aeteurope.nl
Wed May 30 15:19:48 UTC 2012

I do not have any knowledge about how command are executed on the slave. After deploying a new master we had problems with executing steps (in our case Mercurial command 'hg')

If the buildslave is not started from c:\windows\system\cmd.exe but from another shell that starts with c:\program files\..... then an OSError occurs.

The 'space'character in "program files" was the cause of the error. The traceback shows the execution path. We edited the OSError a bit to get more information.

error in RunProcess._startCommand

Traceback (most recent call last):

  File "c:\buildbot\src\slave\buildslave\runprocess.py", line 386, in start


  File "c:\buildbot\src\slave\buildslave\runprocess.py", line 509, in _startCommand


  File "c:\buildbot\src\slave\buildslave\runprocess.py", line 536, in _spawnProcess

    path, usePTY=usePTY)

  File "c:\buildbot\src\slave\buildslave\runprocess.py", line 571, in _spawnAsBatch

    path, usePTY=usePTY)

  File "C:\Python27\lib\site-packages\twisted\internet\posixbase.py", line 352, in spawnProcess

    return Process(self, processProtocol, executable, args, env, path)

  File "C:\Python27\lib\site-packages\twisted\internet\_dumbwin32proc.py", line 195, in __init__

    raise OSError((pwte, command, path))

OSError: (error(2, 'CreateProcess', 'The system cannot find the file specified.'), 'C:\\Program', 'C:\\buildbot\\slave\\testapp1_win-x64_vc8\\testsrc')

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