Internal Error: Sub-system: SGN, File: /quartus/synth/sgn/sgn_utility.cpp, Line: 4893 dimension == 0

Description

Due to a problem in the Quartus® Prime Standard Edition Software version 21.1 and earlier, you may see this error during compilation in the synthesis stage when the wire is named as below:

wire signal_name[0]

This is because the Quartus® Prime Standard Edition Software does not support index numbers signal names.

Resolution

To work around this problem, change the name of the wire to the below example:

wire signal_name_0

This problem is scheduled to be fixed in future release with the Quartus® Prime Standard Edition Software.