I am trying to install kdenlive through the official repository but I am getting this error telling me that libmlt++3 and libmlt6 are outdated. As result, I cannot install kdenlive. I found the newer version (6.6, kdenlive requires at least 6.13) but its impossible for me to install it. Can anyone help me? Using this command sudo apt install libmlt++3 just reinstalls vesrion 6.0... What am I to do?
Edit: The software centre doesn't work neither :(
sudo add-apt-repository -r ppa:kdenlive/kdenlive-stable
and follow my other answer. I sent e-mail to PPA owner. – N0rbert Apr 13 '19 at 17:35