My app isn’t starting on my Mac. What should I do?
App Not Starting on macOS
This can happen if macOS marks the app with a quarantine flag when it’s downloaded. You have two options to resolve this:
Right-Click and Open
- Step 1: Right-click (or Control-click) on the DMG or the app icon.
- Step 2: Select Open from the context menu.
- Step 3: In the dialog that appears, click Open again to confirm.
This method bypasses the quarantine warning without requiring any Terminal commands.
Manual Removal Using Terminal
- Step 1: Open the Terminal application.
-
Step 2: Type the following command (replace
/Applications/AppName.appwith the actual path to your app):xattr -rd com.apple.quarantine /Applications/AppName.app
- Step 3: Press Enter.
This command removes the quarantine attribute from the app, allowing it to open normally. This method is less ideal for everyday users because it requires using the Terminal.
