Pulling my hair out here. After upgrading to Xcode Version 26.4.1 (17E202) I've started getting "unable to create tasks to copy stub binary: can't determine architectures of binary: /Applications/Xcode.app/Contents/Developer/Platforms/WatchSimulator.platform/Library/Application Support/MessagesApplicationStub/MessagesApplicationStub: Cannot open file handle for file at path: /Applications/Xcode.app/Contents/Developer/Platforms/WatchSimulator.platform/Library/Application Support/MessagesApplicationStub/MessagesApplicationStub: The file “MessagesApplicationStub” doesn’t exist."
No matter what I do when trying to run the build (worked in previous versions). I've tried fresh install from App Store, direct package download, removing the SDKs, even previous versions and no matter what I get