The above solution of Disabling Bitcode works, but since I have multiple layers of setting as my xcode project was generated by unity engine, the first few error was solved, yet it failed at around step 905 of 955, and the solution is all bit code enabled should be set to no, meaning you should navigate to build target and check setting of unityframework, unity-iphone, game assembly and unity-iphone test also have the correct setting, as changing one doesn't mean other are changed accordingly.