Gimp misses libraries after installing a compiled version and removing the package

I was trying to remove the older Gimp version in order to install the latest version on my Ubuntu 14.04, I've compiled and installed it. When I start gimp, it says that it was installed in the same directory(/usr/lib) and conflicts with the older one. I removed the package using both

apt-get purge gimp*

and

apt-get autoremove

If I do:

dpkg -l gimp

it says that it isn't installed, but if I type gimp in the terminal, the following message appears:

gimp: symbol lookup error:
gimp: undefined symbol:
gimp: symbol lookup error:
gimp: undefined symbol: g_type_check_instance_is_fundamentally_a

How can I remove it in order to do a fresh installation?