Run VS Code on MacOS Catalina

Due to notarization requirements, currently you may face issue while opening Visual Studio code on MacOS Catalina. To resolve this, go to

System Preferences -> Security & Privacy. Click the lock to make changes -> Provide your password. You’ll get a notification at the bottom that the “App was blocked from opening because it is not from an identified developer”.

click ‘open anyway’.

Check the screen-shot below:

This would open Visual Studio code on your Mac.

Here is the Visual Studio Code Requirements Page:

https://code.visualstudio.com/docs/supporting/requirements

Here is the Apple notarising documentation:

https://developer.apple.com/documentation/xcode/notarizing_macos_software_before_distribution

How to clean uninstall Xcode on Mac

Many times it happens that you update your MacOS and then some new update comes up for the Xcode version and there is a backwards compatibility issue. Then you go to the App Store on your Mac to update the Xcode and Bam! You end up wasting hours because the installation gets stuck. It keeps showing installing for hours. If you force shutdown your MacOS and restart, then again the same story.

This time it happened with me again after I updated MacOS Catalina and installation of Xcode 11.3 just doesn’t end. Stopping in App Store doesn’t work.

Another way is, going to the Launchpad and holding down the alt/option key till all the icons start to jiggle. Then click on the x icon and you’ll be prompted to confirm to delete the Xcode App. Well, this also didn’t work for me. Then restart your Mac to move to the next steps.

Go to the Applications folder and find the Xcode App, right-click on it and move it to Trash/Bin. Empty the Trash/Bin.

For newer versions of Xcode, this step should be sufficient. You can go ahead and re-install Xcode from the App Store.

Removing from the Terminal

You need to run the following command in order to completely remove Xcode:

sudo /Developer/Library/uninstall-devtools --mode=all

The above command requires the admin password for sudo. If you get the error that the above command not found, then it probably doesn’t work for the newer versions of Xcode.

You might need to consider backing up the data in case you have Projects in the Developer folder and certain preferences to preserve in case you’re reinstalling. Back-up some of these files/folders before deleting anything:

~/Library/Developer/Xcode/UserData/CodeSnippets
~/Library/Developer/Xcode/UserData/FontAndColorThemes
~/Library/Developer/Xcode/UserData/KeyBindings
~/Library/Developer/Xcode/Templates
~/Library/Preferences/com.apple.dt.Xcode.plist
~/Library/MobileDevice/Provisioning Profiles

The following folders are cleared with complete uninstallation of Xcode:

  • /Applications/Xcode.app
  • /Library/Preferences/com.apple.dt.Xcode.plist
  • ~/Library/Preferences/com.apple.dt.Xcode.plist
  • ~/Library/Caches/com.apple.dt.Xcode
  • ~/Library/Application Support/Xcode
  • ~/Library/Developer/Xcode
  • ~/Library/Developer/CoreSimulator
  • /System/Library/Receipts/com.apple.pkg.XcodeExtensionSupport.bom
  • /System/Library/Receipts/com.apple.pkg.XcodeExtensionSupport.plist
  • /System/Library/Receipts/com.apple.pkg.XcodeSystemResources.bom
  • /System/Library/Receipts/com.apple.pkg.XcodeSystemResources.plist
  • /private/var/db/receipts/com.apple.pkg.Xcode.bom

Remove the files at ~/Library/Caches/com.apple.dt.Xcode is basically clearing the cache. You can delete anything under /Library/Developer/ directory, such as CommandLineTools and CoreSimulator, except PrivateFrameworks subfolder. This might cause your newly installed Xcode to crash until you put it back.

Share your experience on what worked for you to make this post better.

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