Internal Error: Sub-system: CDMS, File: /quartus/dni/cdms/cdms.cpp, Line: 65

Description

Due to a problem in the Intel® Quartus® Prime Pro Edition Software version 22.4 and earlier, you may see this internal error during the Analysis & Synthesis compilation stage. This problem can occur when multiple processes try accessing the same database file.

The internal error message will be similar to the one shown below:

Internal Error: Sub-system: CDMS, File: /quartus/dni/cdms/cdms.cpp, Line: 65
UNHANDLED ERROR: Disk operation 'Remove directory' failed on '<generic_path>'. The following error was reported by the operating system: 'There are no more files.'.

This problem only occurs on Windows OS.

Resolution

To work around this problem, add the following assignment to your project .qsf file:

set_global_assignment -name AUTO_PARALLEL_SYNTHESIS OFF

This problem is scheduled to be fixed in a future release of the Intel® Quartus® Prime Pro Edition Software.