hello guys I've been trying to fix this problem :
kdenlive: undefined symbol: _ZN3Mlt7Profile12set_explicitEi
by autoremoving kdenlive(the sunab's newer one) and I suddenly deleted the whole /usr/share/mlt directory.. and then installed it again !! but each time I open it, it asks for my kdenlive profiles ..
"cannot find your mlt profiles, please give the path : /usr/share/mlt/profiles";
but I think that I don't even have /usr/share/mlt !!
please help me! each time they make a new version of ubuntu I find my self into big troubles with kdenlive ):

Looks like you have an old MLT version installed... Remove all MLT packages and Kdenlive, then reinstall Kdenlive.

thank you so much, I finally can enjoy kde in live !