I want to use my existing project in my new MacBook Air M1. Actually my project was running on Xcode 11.4. But MacBook Air M1 comes with BigSur OS and it is not possible to downgrade to Catalina OS. So I installed Swift 5.2.4 Toolchain. After that most of the compiles issues are resolved. Still few files inside that pod folder are having compile errors.
pod 'FBSDKCoreKit'
Compile Error
Undefined symbols for architecture armv7:
"___isOSVersionAtLeast", referenced from:
-[FBSDKAppEvents appendInstallTimestamp:] in FBSDKAppEvents.o
___43-[FBSDKAppEvents fetchServerConfiguration:]_block_invoke_2 in FBSDKAppEvents.o
+[FBSDKAppEventsUtility advertiserID] in FBSDKAppEventsUtility.o
+[FBSDKAppEventsUtility shouldDropAppEvent] in FBSDKAppEventsUtility.o
-[FBSDKBridgeAPI applicationDidBecomeActive:] in FBSDKBridgeAPI.o
-[FBSDKBridgeAPI application:openURL:sourceApplication:annotation:] in FBSDKBridgeAPI.o
-[FBSDKBridgeAPI _updateAuthStateIfSystemAlertToUseWebAuthFlowPresented] in FBSDKBridgeAPI.o
...
ld: symbol(s) not found for architecture armv7
clang-7: error: linker command failed with exit code 1 (use -v to see invocation)
I tried to run that project with iPhone 11 (14.4)simulator. Now I am getting different error
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator14.4.sdk/usr/lib/swift/Swift.swiftmodule/arm64-apple-ios-simulator.swiftinterface:21432:21: Module 'Builtin' has no member named 'convertUnownedUnsafeToGuaranteed'