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JQ2's avatar
JQ2
Icon for New Contributor rankNew Contributor
5 years ago
Solved

Error 16045: Instance "auto_fab_0|alt_sld_fab_0" instantiated undefined entity

When I was trying to compile the project with Quartus Prime Pro 20.2, I encountered the following issue during the synthesize stage. This issue appeared suddenly, the same design compiled successfull...
  • JQ2's avatar
    JQ2
    5 years ago

    We found the issue. The issue is caused by the update of Digital Guardian software tool on our Linux server. The new version of the tool somehow blocks certain functionality of Quartus, so certain IP files cannot be retrieved. Reverting to a previous version of the Digital Guardian solved the problem.

    Thank you all for the help.

    Regards, JQ

SyafieqS's avatar
SyafieqS
Icon for Super Contributor rankSuper Contributor
5 years ago

Hi Zhang,


I ran quartus synthesis flow from release 20.2 and 20.4 of your design file, and both completed successfully.

Not much I can do, specially if the problem is not reproducible.


In the warning, I can see there an empty module, search for all file containing that module as the name. Possibly, there is an empty file that is read-only such that Quartus cannot write the real content into it?


Another way is try to reboot your server and rerun through the Quartus flow.



JQ2's avatar
JQ2
Icon for New Contributor rankNew Contributor
5 years ago

We found the issue. The issue is caused by the update of Digital Guardian software tool on our Linux server. The new version of the tool somehow blocks certain functionality of Quartus, so certain IP files cannot be retrieved. Reverting to a previous version of the Digital Guardian solved the problem.

Thank you all for the help.

Regards, JQ