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MSenk1's avatar
MSenk1
Icon for New Contributor rankNew Contributor
5 years ago

Quartus Crash with Internal Error: Sub-system: OPT, File: /quartus/synth/opt/opt_carry_pack.cpp

Hallo, I'm constantly getting this following error. Is there a patch? regards Mike. Version: 20.2.0 Build: 50 Edition: Pro Edition Problem Details Error: Internal Error: Sub-system: OPT...
KennyT_altera's avatar
KennyT_altera
Icon for Super Contributor rankSuper Contributor
5 years ago

This seems to be a new issue. Can you attached your design.qar file for investigation?


If you want to attached privately, let's us know.


  • MSenk1's avatar
    MSenk1
    Icon for New Contributor rankNew Contributor
    5 years ago

    Thank you,

    our customer doesn't allow us to send you the code.

    We changed some settings in the compiler flags and now it works again. But we don't know why.

    kind regards

    Mike