kdenlive: cannot find your MLT profiles

This problem commonly encounter after you update you libmlt. Normally the popup suggest the path /usr/share/mlt/profiles, but after re-install/update the mlt path will commonly become /usr/share/mlt-5/profiles and /usr/share/mlt-6/profiles. But in my case i use /usr/share/mlt-6/profiles as my profile path.