Could not download IOS Simulator Xcode 12.4

Macbook Air M1, get the error in Xcode 12.4:

Could not download and install IOS 12.0 Simulator. Failed to download package from ADC. There are no valid accounts registered with Xcode that have the ability to access this resource. Contact Apple Developer Program Support to resolve account access issues.

I have never had this error on the previous Xcode and Macbook on intel chip. Please can you tell me how to solve it.


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The simplest solution is to just sign in into your apple account on Xcode and launch back the download.

Follow the steps

  1. Xcode -> Settings -> Account -> Add account using the + icon
  2. Using the top tab for the same window select "Platform" then download the simulator

Now you are good to go.