Quartus 17.1 Retime stage internal error

[Altera_Forum]

When I compile a project in 17.1, an internal error is reported in the Retime stage. 

 The error report as follow: Internal Error： Sub-system: STA, File: /quartus/tsm/sta/sta_odv.cpp, Line：597

[Altera_Forum]

Hi, 

Delete "db and incremental db" folders, better way cut and paste it anywhere except your project directory just for backup purpose & compile again. Can you check, whether getting same error with different project or by Inserting template?   Best Regards Vikas Jathar  (This message was posted on behalf of Intel Corporation)