When I upgraded to a newer version of linux I found out I just could not use tomboy notes.
I read somewhere that tomboy was officially removed as a default note app/in apt-get repository the author of that message recommended GNote.
When I installed it, it conflicted with google chrome and uninstalled that automatically.
Re installing chrome would remove Tomboy.
The solution is to use GNote which I think is actually nicer and to copy the *.note files from tomboy to your gnote directory in ~/.local/share/.
sudo apt-get update && sudo apt-get install gnote
cp ~/.local/share/tomboy/*.note ~/.local/share/gnote/
You may also want to auto start gnote
cp /usr/share/applications/gnote.desktop ~/.config/autostart/
chmod u+x ~/.config/autostart/gnote.desktop
Thanks to http://www.irrational.net/2012/04/27/moving-from-tomboy-to-gnote/