Mac App Store Download and Installation Issues


#1

Sometimes our customers (and we) get a message while updating/installing Codebook from the Mac App Store that “The application could not be downloaded,” or that the application is “corrupted or damaged.” There are a few things we’ve found that can fix the issue:

Sign out of the App Store and sign back in

  1. Launch the App Store app on your Mac
  2. From the menu bar choose Store -> Sign Out
  3. Visit the Codebook page in the App Store (click here)
  4. Click on the Install or Update button

Move the existing copy of Codebook out of the way

  1. Quit Codebook if running already
  2. Switch to Finder
  3. From the menu bar select Go -> Applications (⇧+⌘+A)
  4. Locate Codebook and remove it from Applications
  5. Visit the Codebook page in the App Store (click here)
  6. Click on the Install button

Reboot your Mac

  1. Reboot your Mac. Yeah, we know. But this seems to work.
  2. Launch the App Store app after reboot
  3. Visit the Codebook page in the App Store (click here)
  4. Click on the Install button

If you continue to have this problem

We’ll want to hear from you, please get in touch. However, it may not be a bad idea to reach out to App Store support directly for help with your problem.