I have downloaded previous version of gir1.2-unity-3.0 (http://launchpadlibrarian.net/65084967/gir1.2-unity-3.0_3.4.6-0ubuntu1_i386.deb) and issued a "sudo dpkg -i gir1.2-unity-3.0_3.4.6-0ubuntu1_i386.deb".
It automatically fixes the issue without even having to restart.
I have downloaded previous version of gir1.2-unity-3.0 (http:// launchpadlibrar ian.net/ 65084967/ gir1.2- unity-3. 0_3.4.6- 0ubuntu1_ i386.deb) and issued a "sudo dpkg -i gir1.2- unity-3. 0_3.4.6- 0ubuntu1_ i386.deb" .
It automatically fixes the issue without even having to restart.