It is preferable that you have downloaded this from the “Software downloads” page of rather than the app store.

Make sure that you have Xcode 10.3 installed in your applications folder, and it works for building other versions.

Instructions for building app for iOS 13.2 on Xcode 10.3: Older versions of Xcode can build for newer versions of iOS if you link the device files from the newer version of Xcode into the version that you are using. This is because each version of Xcode is released with “device files” that allow it to build for each version of iOS. By default, older versions of Xcode are not compatible with the latest version of iOS. One issue that many people run into is that when Apple releases a new version of Xcode and iOS, developers are not always ready to update to the newest version of Swift and Xcode as quickly. In this example I will be building for iOS 13.2 on Xcode 10.3, but the same concepts work for any version of Xcode or iOS. Robotic Process Automation Design Patterns Pega Robotic Automation Release and Build Notes

Xcode old download