Error (293007): Current module quartus_fit ended unexpectedly

Hello @RichardTanSY_Altera ,

here are some very interesting new findings:

1) Compiling from the command line leads to the same exact error. I put together a batch file that calls all the compiler steps (map, fit, sta, asm) 10 times in a row (attached as Quartus_test.txt). Compiling a project that is locally stored on the computer works fine (see Test1-local.txt). But compiling an identical copy of this project that is stored on our network drive leads to the error on the second try (see Test2-network.txt). The text files contain the entire content of the CMD window.

"Der Befehl "quartus_fit" ist entweder falsch geschrieben oder konnte nicht gefunden werden." -> Translation: quartus_fit does not exist.

2) This leads to the second discovery:

After the first (successful) compilation on the network drive, the quartus_fit.exe file is simply gone. So, it's no wonder that the compilation will always fail from this point on.

Astoundingly, when I copied the entire bin64 folder to the desktop (as a backup), the file was also gone from that folder.

After placing a new fitter file (copied from another machine) in the bin64 folder of Quartus' installation files, I was again able to compile the project.

Since all quartus_fit.exe files from the entire machine are gone after every compilation of a project on the network drive, we suspected that maybe Windows Defender kept moving the file(s) to a quarantine folder for some reason. However, this does not seem to be the case.

So, we can boil the issue down to the fitter suddenly disappearing.

Perhaps you have an idea why this could happen.

Regards,

Nils