Rhythmbox doesn't add/import MP3s from ~/Music on Ubuntu Gnome 15.04
Solution 1:
Based on our discussion, I assume that the database was corrupted.
Delete it:
rm ~/.local/share/rhythmbox/rhythmdb.xml
or rename it:
mv ~/.local/share/rhythmbox/rhythmdb.xml ~/.local/share/rhythmbox/rhythmdb.xml.bak
And start the import again.
Solution 2:
In order to be able to decode and play MP3 files, You need to install required decoder which is not installed on Ubuntu by default, And are provided in the package called "ubuntu-restricted-extras".
Run this in a terminal to install that package :sudo apt-get install ubuntu-restricted-extras
After installing those, Try to import your MP3 files again.
If failed (Which is your problem now !) it's probably because the database was corrupted.
So as A.B. said, You can just delete the database and re-import :rm ~/.local/share/rhythmbox/rhythmdb.xml
At this stage the shouldn't be any problem with Rhythmbox importing mp3 files.
Solution 3:
For me, on 16.04LTS, import suddenly stopped working after an update. The fix was to install the ubuntu-restricted-extras as above, then pause and close rhythmbox, then start rhythmbox again; then, import was working again. I did not delete or rename rhythmdb.xml . This is worth a try before you re-import your entire collection.