Maya 2017 crash on MFileIO::open with 3dtext/svg

[Anonymous]

Hi 

I have been trying to update our importers for maya to 2017, they are standalone C++ applications that use the maya api.

But stumbled upon a illusive crash deep within some code out of my control, which happens *sometimes* when importing files with 3DText and SVG on windows.

This crash occurs often:

Stack trace:

Stack trace:
  Qt5Core.dll!QUrl::isEmpty
  Shared.dll!TresolveFileObject::isSet
  Shared.dll!TresolveFileObject::isSetURI
  Shared.dll!TresolveFileObject::rawFullName
  Shared.dll!TsceneFile::fullName
  Shared.dll!TfileTranslator::read
  Shared.dll!TglobalTranslator::doReadFile
  Shared.dll!TfileUtil::readFile
  Shared.dll!TsceneOperator::openFile
  Shared.dll!TfileCmd::handleFileOpenFlag
  Shared.dll!TfileCmd::handleFlags
  Shared.dll!TfileCmd::handleFlags
  Shared.dll!TfileCmd::doCommand
  CommandEngine.dll!TmetaCommandPtrArray::catenate
  CommandEngine.dll!TminMelArgList::nextDigit
  CommandEngine.dll!TminMelArgList::nextDigit
  CommandEngine.dll!SophiaExecutable::evaluate
  CommandEngine.dll!TcommandEngine::executeCommand
  OpenMaya.dll!MGlobal::executeCommand
  OpenMaya.dll!MFileIO::open
  KERNEL32.DLL!BaseThreadInitThunk
  ntdll.dll!RtlUserThreadStart

 When it does not crash it does give plenty of warnings and errors ie:

API error detected in S:\Maya_2017_DI\src\Maya\src\Type\fontNode.cpp at line 2017
: (kFailure): Unexpected Internal Failure

API error detected in S:\Maya_2017_DI\src\Maya\src\Type\fontNode.cpp at line 2020
: (kFailure): Unexpected Internal Failure

I have attached two files with the stderr output , and a select set of environments variables in the top.

Its quite annoying as it happens on a specific machine and I am not able to reproduce the crash on my dev machine. I will also get the API error messages, but if we ignore the warnings our importer still works alright.  

It does however seem like that opening the file in maya and immediately after running out importer on the file, does not trigger the crash. 

Are there any known issues in this area?

Are there any possible work arounds  or fixes?

Any ideas as to what where how to approach this?

[Anonymous]

On Mac it gives the same error 

API error detected in S:\Maya_2017_DI\src\Maya\src\Type\fontNode.cpp at line 2017
: (kFailure): Unexpected Internal Failure

API error detected in S:\Maya_2017_DI\src\Maya\src\Type\fontNode.cpp at line 2020
: (kFailure): Unexpected Internal Failure

But does not crash.

[Anonymous]

looking at the docs of Qt:

bool QUrl::isEmpty() const

Returns true if the URL has no data; otherwise returns false.

so it seems to me that it is crashing because it is trying to dereference a null pointer -- aka the URL of some kind.

It seems it is trying to run some sort of service -- that is getting interfered with something else. I had a similar problem before when writing a service application -- and it got intercepted by another service that was running -- which was DropBox --  -- Some machines had it running -- and some didn't -- the ones that it had it running -- it would break the service.  -- To solve that issue -- I would simply just -- shut down dropbox.    

You can google "handle.exe net.pipe"   and click on the first links to explain how to use it and how to shut down potentially infracturing services.    

[Anonymous]

Thank you.

That sounds like something to investigate in more detail.