It is important to understand the difference between the two main types of libraries:
If you are migrating from EZdrummer 2, you might need to point EZdrummer 3 to your old EZdrummer 2 "Midi" folder to see your legacy files.
Apple’s security lockdowns are a common culprit for the "No MIDI Library Found" error. Starting with macOS Catalina (10.15), apps must request permission to see certain folders—including /Users/Shared where Toontrack stores MIDI files. ezdrummer 3 no midi library found
If your DAW or EZDrummer cannot see the Shared folder, it cannot see your grooves.
Solution: Grant Full Disk Access:
Alternative: Reset permissions on the Toontrack folder:
Once your MIDI library is back, take five minutes to prevent this nightmare from recurring: It is important to understand the difference between
EZdrummer 3 does not automatically "scan" your entire computer for MIDI files. It needs to be told exactly where to look. If you have installed EZdrummer 2 libraries, EZX expansions, or custom MIDI packs, EZdrummer 3 will not see them until the MIDI Paths are set correctly.