Internal Error: Sub-system: STA, File: /quartus/tsm/sta/sta_clock_mgr.cpp, Line: 8971

Description

Due to a problem in the Quartus® Prime Standard Edition software version 19.1, you may see this error during the synthesis stage of compilation. This internal error occurs when using Synplify Pro* FPGA Synthesis software for synthesis.

Resolution

To workaround this problem, use this assignment:

set_global_assignment -name DISABLE_LEGACY_TIMING_ANALYZER ON