[Scons-users] Internal errors on cleanup

[Dirk Bächle]

Hi David,

On 10.06.2014 14:17, David Gittins wrote:
> Hi,
>
> I have recently started using SCons 2.3.1 on Centos 6.5 and I am a big 
> fan.
>
> There is one irritating issue I can't solve though... sometimes (quite 
> often) after a build, there is an error like this:
>
> scons: *** Found dependency cycle(s):
>
>   Internal Error: no cycle found for node BLAH (<SCons.Node.FS.Dir 
> object at 0x2a43910>) in state pending
>
> ...where BLAH is actually the name of my variant dir. The build seems 
> to work fine - the variant dir has all the object files in it and 
> there are output libs/bins in a separate output folder as I wanted. 
> But this error still bugs me. I would like to understand it and 
> eliminate it.
>
> I have not been able to reproduce it with a small test case sadly, and 
> obviously I can't share my whole build. Any ideas on debugging it? 
> --debug=stacktrace just showed me where in Taskmaster.py the error 
> arises which I already knew...
>

we do have the issue #2777 in our bug tracker at:

   http://scons.tigris.org/issues/show_bug.cgi?id=2777

, maybe it's the same cause (any SideEffects involved on your side?) and 
the comments and provided patches help you a little further already.

Best regards,

Dirk