Tested on 1.9 M1 RC2: f9ea480e6c26fea46c3011c4e9d0e2de3d5c81b4 Steps to reproduce: 1. Create new 'yocto master' project 2. build 'core-image-minimal'. wait until build completes. 3. switch to 'fido' release 4. build 'core-image-minimal' Expected result: Second build should complete successfully. Observed result: Build fails with many(40+) errors similar to: QA Issue: Package version for package libgcc-dbg went backwards which would break package feeds from (0:4.9.3-r0 to 0:4.9.2-r0) [version-going-backwards] Looking further into this, the errors are valid and expected under this particular use case. Suggestions: Either we need to make Toaster recognize this problem in the future and run the "cleanall" command automatically when it is encountered or add a notification clarifying this case in particular and provide an easy way for users to clean the cache - maybe a "Clear cache" button that runs a "cleanall" command in the background?
Found existing bug 7880 that describes the same underlying issue. Marking as duplicate. *** This bug has been marked as a duplicate of bug 7880 ***
Verified.