Hi!
Yes start by running “ls -l” in the folder to verify the file size.
It should be: 28174
-rw-r–r-- 1 josha users 28174 Sep 2 21:27 org.openhab.binding.omatic-OH2-alpha1.jar
When downloading from github, it appears it’s not always downloaded properly
Use download button:
Next thing is to verify that the file has proper permissions.
You can do “chmod a+rx org.openhab.binding.omatic-OH2-alpha1.jar” I’m assuming you run Linux.
I had similar.issues with the unifiprotect binding, see this thread for details:
/S