Just rename the existed latest device support file to 14.6. It will work.

Hi, I'm also having the same issue. Did you find any solutions? error build: Cannot link directly with dylib/framework, your binary is not an allowed client of /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/PrivateFrameworks/XCTAutomationSupport.framework/XCTAutomationSupport for architecture arm64