Quartus Error (138003) (140001) Can't write to quartus files

[sam11]

Dear  intel team

I am currently trying to compile in Quartus Prime Version 21.1.0 (Windows 10 Pro) an old project which was build in version 15.0.2 (no error in this older version). With 21.1.0, I get the following two error messages.

Error (138003): Can't write incremental compilation assignments. Quartus Prime Settings File C:/Users/....qsf is unwritable.

Error (140001): Can't write LogicLock assignments. The Quartus Prime Settings File C:/Users/....qsf is unwritable.

Even after manually deleting the files and recompilation I get the same errors.

I have full right for the project folder.

Do you have any idea how to solve this issue?

Thank you!

[sam11 · Accepted solution]

It compiled without the mentioned errors after I have done the following:

(1) Delete manually the .qsf file

(2) Project -> Clean Project

(3) Recompile Design

[SyafieqS]

Simon,

Glad you have resolved this. Let me know if there is any other concern on this.

[SyafieqS]

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