Internal Error: Sub-system: STA, File: /quartus/tsm/sta/sta_thread_worker.cpp, Line: 892

Description

This error may be seen in the Quartus® II software version 11.0 and later when the report_skew (Synopsys Design Constraint (SDC) command is run in the TimeQuest timing analyzer without specifying any paths or clocks.

Resolution

To work around this problem, ensure a path or clock is defined when running the report_skew command.

For more information on the syntax of the report_skew SDC command and example usage, refer to Quartus II Help.

This problem is fixed beginning with the Quartus II software version 12.0.