
There's always a risk of package conflicts when installing things manually. Maybe remove the i386 one since you're running a 64-bit OS?: sudo apt remove libpng12-0:i386

# sudo apt autoremove liblcms1 libmng1 libpng12-0 libqt3-mt I'd recommend uninstalling one of the libpng12-0 packages and seeing if it fixes the problem. The links are broken (see above for working links), but the bigger issue is that the packages are too old to work in a modern version of Ubuntu. _curl > xfonts-encodings_1.0.4-1ubuntu1_all.deb # TODO: use _curl to get wget or curl or something better for better output if one of the below downloads fails.

# Curl command from RUN echo -e 'function _curl() ' > curl.sh # Change the default shell to bash SHELL
