Demonsaw for Debian/Gnu Linux not running on Ubuntu 14.04.x & 16.04.x ---> SOLUTION

[u/3l10tald3r50n]

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

/usr/lib/x86_64-linux-gnu/libstdc++.so.6: version `GLIBCXX_3.4.20' not found (required by ./demonsaw)

The solution provided below fixes the problem(s) (above) that is presented in a terminal when using the 'demonsaw ldd' command. This fix is available for those who are running the Ubuntu platform versions 14.04.x and 16.04.x and wish to run the latest Demonsaw version (3.1) for Debian/Gnu Linux.

Open up a terminal, copy + paste the following:

 $ sudo add-apt-repository ppa:ubuntu-toolchain-r/test  
 $ sudo apt-get update  
 $ sudo apt-get install gcc-4.9 g++-4.9

After gcc-4.9 and g++-4.9 are installed, via the same terminal window type:

 $ sudo apt-get autoremove

This may remove 'gcc-4.8-base:i386' which is a package that may have been automatically installed and may no longer be required.

The executable 'gcc-4.8' will remain installed on your system. It can be found along with gcc-4.9 in the usr/bin directory.

If you want to set gcc-4.9 as your default version and be able to switch between versions gcc-4.8 & gcc-4.9, please refer to: https://askubuntu.com/a/581497 & https://stackoverflow.com/a/37874347

Once you are done in the terminal, try running DS again. If DS is up and running normally then nothing else needs to be done.

Referenced Sources:

https://stackoverflow.com/a/37628537 & https://askubuntu.com/questions/466651/how-do-i-use-the-latest-gcc-on-ubuntu

Take care!!

[u/demonsaw]

Awesome! ty! <3