Reading file from /share directory is failing

i’m building my first Snap for the Gnome15 project. So far I created a snap for it that compiles and installs the software in a Snap. When running the software from inside the snap it throws ‘No such file or directory: ‘/share/gnome15/ukeys/mouse.keys’’. When I look in my prime directory (created by snapcraft try) there is are the correct directory structure and the file is also in the directory. I use the default settings of the autotools to install the compiled code and it creates the directories.

The full snapcraft.yaml file can be found at Github