DAQmx & LabWindowsCVI : unknown error code

Hi,

I am currently triyng to migrate an old test bench (which is working with Legacy DAQ) to DAQmx.

I have the following cards : 

• Chassis : Pxie 1073
• PXIe 6341
• PXIe 6722

Our test bench is a simulator, developped with LabWindowsCVI 2012.

When I tried to initialize and configure the cards (with DAQmxCreateDIChan or DAQmxCreateDOChan for example), I have strange error code that CVI and the DAQmxGetErrorString() function does not know : 

• -3480
• -3944
• -3870
• -3869

Where can I find the meaning of these error codes ?

For example, when I try to initialize the PXIe 6341 card, the task creation (thanks to DAQmxCreateTask) seems to be okay (the return code is 0). Right after this step, I try to instanciate a digital input on this card ("cardname/port0/line0") and the return code of the DAQmxCreateDIChan is -3944.

Are you familiar with this error code ?

Thanks in advance,

Best regards,

Pablo