Due to a problem in Quartus® II software version 11.1 SP2 or earlier, this error may occur when running the Assembler if you compile a design targeting a Stratix® V GX device. This error may occur if the project has Reserved Pin assignments with any of the following values:
- As SignalProbe output
- As output driving VCC
- As output driving an unspecified signal
- As output driving ground
To work around this problem, disable Reserved Pin assignments with any of the above values.
This issue is fixed beginning with the Quartus II software version 12.0.