This problem may be caused by incomplete software installation. We can solve this problem by force removing the cache file on the system. Please refer to the following steps to fix it:

Close Eagle.
Click the Win button in the lower-left corner, search for "%appdata%".
Delete the "Eagle" folder.
Restart Eagle to see if the problem is solved.

This problem may be caused by incomplete software installation. We can solve this problem by force removing the cache file on the system. Please refer to the following steps to fix it:

Close Eagle
Open Finder and click the menu "Go" > "Go to Folder...".
Paste path "~/Library/Application Support/"(must start with ~) and click "Go".
Delete the "Eagle" folder.
Restart Eagle to see if the problem is solved.

If the above solutions still don't work, please contact us.

I can't open Eagle, it prompted message "A JavaScript error occurred in the main process"