Recently purchased a new retina MacBook Air 2018 but the App Store would only install updates.
If I searched for an app or Safari extension, clicking Get > Install shows download icon endlessly spinning. The App Store would not download Apps or Safari extensions.
Here's how to fix it.
- Sign out of App Store.
- Close the App Store.
- Run this command in Terminal:
defaults write com.apple.appstore.commerce Storefront -string "$(defaults read com.apple.appstore.commerce Storefront | sed s/,8/,13/)"
- Sign in to App Store.
- Restart Mac.
Try to download an app and rejoice it works! 🎉
If symptoms still persist, leave a comment below and I will do my best to help.
- trs96 in tonymacx86.com forum for originally posting the solution.
- Adrian Voica for sharing the solution on Stack Exchange.
Searched "App Store" in Console, found these errors:
error 12:15:39.880988 +1000 kernel Sandbox: App Store(13284) deny(1) mach-lookup com.apple.assertiond.processassertionconnection
default 12:15:39.879884 +1000 App Store AMSMetrics: [51650FA9] Flushing events for container: MacAppStore
default 12:15:39.879887 +1000 App Store AMSMetrics: [18BB0E63] Flushing events for container: com.apple.AppleMediaServices
error 12:15:39.881276 +1000 App Store AMSKeepAliveSession: [1E92A5AD] Failed to acquire task assertion
Googled a bit and found no helpful articles.
Maybe it's an account/authentication issue? Signed out. Now sign in failed. 😠
error 12:18:07.281113 +1000 App Store Sign in failed with error code: 500, description: <private>
Searched google "mojave app store sign in failed 500" and found the solution on Stack Exchange.