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Electronic Theatre Controls Inc

"ColorSourceLauncher can't be opened" Error on macOS Catalina


When trying to open the ColorSource Offline Editor on macOS Catalina, the following error pops up:

"ColorSourceLauncher" can't be opened because Apple cannot check it for malicious software.


Earlier versions of ColorSource Offline are not notarized - a new requirement for apps on macOS Catalina. The instructions below will walk you through opening it up anyway.


  1. Right-Click (Or control+click) on the ColorSourceLauncher app and choose "Open"CS Open.png
  2. A new pop-up will appear, this time with an "Open" button. Click "Open" and the app should launchCS Open 2.png
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