Error message while exporting. HELP

when i try to export I get this error message:

“Duplicate definition of lookup ‘kern_hebr’
Found in: feature ‘liga’, line 4.”

what I need to do?

What version of Glyphs do you have?

the newest

You need to be more specific. There are more than one “newest” version. Can you check the build number (3077 is the latest cutting edge version).

sorry, I didn’t know. This is what is written for me 3.0.2 (3058)

Can you check the latest cutting edge version. You can activate it in Preferences > Updates

yes it work! thank you!!