If you have scrolled to the bottom of the page means you still won't got the solution. Solution: **Make sure that the rootviewcontroller you have assigned for the window of the application is allocated prior to adding the view in the hierarchy. **

Got solution on the above issue. Please follow the below steps: Open terminal Move to the directory of your project Deintegrate pod Remove workspace manually Remove pod file, pod.lock file, Pods folder manually pod init - terminal pod install Open workspace in Xcode Pods > General > Target > 12.0 IMPORTANT: Let processing complete for the device in Xcode. Worked on XCode 13.2.1

remark: Incremental compilation has been disabled: it is not compatible with whole module optimization Command CompileSwiftSources failed with a nonzero exit code I have also got this issue and i was able to archive prior to the updation of the pods. When i last updated the pods, it started showing above error. Anyone able to build archive?