Not compiling

Some mod elements cause compilation errors
Your workspace contains mod elements that don't compile properly.
This was most likely caused by the last mod element you added or edited. Try altering the settings of mod elements
that cause build errors (such elements are listed below) to try to fix this problem.
If you can't resolve this problem, export the workspace to shareable ZIP file from the File menu and send it to us via
our Issue tracker on GitHub so we can try to help you.
List of mod elements that cause compilation errors (trimmed to up to 10 elements):