In order to generate the appImage, just run makeAppImage.sh This app image recipe has been obtained from https://github.com/AppImage/AppImageKit/wiki/Creating-AppImages ... using method 1. The script Recipe is https://raw.githubusercontent.com/probonopd/AppImages/master/recipes/meta/Recipe from https://github.com/probonopd/AppImages/blob/master/recipes/meta/RetroShare.yml which as been adapted to the newest naming conventions