Use 14.04 (trusty) or older

[probonopd]

Interesting project. Please use 14.04 (trusty) or older as the basis for your AppImages; this way, they can run on older distributions, too. Thanks!

[knapsu]

Ubuntu Trusty has outdated packages for CMake and GCC. Resolved it by adding custom PPA-s, however when trying to run the AppImage on plain Ubuntu Trusty VM it will fail with the following error:

/usr/lib/x86_64-linux-gnu/libstdc++.so.6: version `CXXABI_1.3.8' not found (required by ./Plex_Media_Player_20170705_044db29_x86-64.AppImage)

Using new version of GCC (minimum GCC 4.9 is required to compile the code) will increase the dependency for libstdc++ to version supported by it. Of course it will not be present on plain Trusty system.

[probonopd]

Please also see https://github.com/AppImage/AppImageKit/wiki/Creating-AppImages#libstdcso6, specifically https://github.com/darealshinji/AppImageKit-checkrt/.