ooga Yes but you didn't check if all the dependencies listed on the BUILD.md file you mentioned are installed. The system.devel contains the commonly used packages but not everything that each and every application in the galaxy may require.
For example, in the dependencies list, I see cairo and librsvg and if I look at libcairo-devel and librsvg-devel, I see it is in programming.devel and not in system.devel so it is probably not installed on your computer. You have to check if the following dependencies are installer or not until you get all the required packages installed.
https://github.com/TheAssassin/AppImageLauncher/blob/master/BUILD.md#dependencies