I fixed the bug mentioned in this report (the error message should be gone now and you should be able to search for mimetypes with PackageKit again).
However, it could be possible that the error described here was masking another issue with missing codecs itself (I can't test that at time).
I fixed the bug mentioned in this report (the error message should be gone now and you should be able to search for mimetypes with PackageKit again).
However, it could be possible that the error described here was masking another issue with missing codecs itself (I can't test that at time).
In any case, you can test this by upgrading PackageKit to version 1.1.7-1 (currently in Debian, maybe synced to Ubuntu), or by applying https:/ /github. com/hughsie/ PackageKit/ commit/ 5e8a20440ca5308 0d5409a10f211a0 979545816f