How To

Resolve MacOS 'cannot be opened because the developer cannot be verified' error

  1. Run the binary. You should see Killed: 9 as output in the terminal.
  2. Once the error happens, open the "Security & Privacy" control panel from System Preferences.
  3. The Security & Privacy panel, General tab is updated with the info that the binary was prevented from running. Click Allow Anyway.
  4. Run the binary again. This time a different prompt is shown. Click Open - the binary should run as you expect.