我在 Unity 中构建了一个应用程序，并安装了用于身份验证、分析和数据库的 Firebase SDK。构建过程在 Unity 中运行得很好。完全没有错误。但是，当我在 Xcode 中打开该项目并尝试对其进行存档时，我收到以下错误：
ld: warning: arm64 function not 4-byte aligned: _unwind_tester from /Users/michael/Desktop/Reserve1/Libraries/libiPhone-lib.a(unwind_test_arm64.o)
Undefined symbols for architecture arm64:
"_OBJC_CLASS_$_FIRApp", referenced from:
objc-class-ref in libFirebaseCppApp.a(app_ios.mm.o)
"_OBJC_CLASS_$_FIRTransactionResult", referenced from:
objc-class-ref in libFirebaseCppDatabase.a(database_reference_ios.mm.o)
"_OBJC_CLASS_$_FIRTransactionResult", referenced from:
objc-class-ref in libFirebaseCppDatabase.a(database_reference_ios.mm.o)
"_OBJC_CLASS_$_FIRDatabase", referenced from:
objc-class-ref in libFirebaseCppDatabase.a(database_ios.mm.o)
"_OBJC_CLASS_$_FIRGameCenterAuthProvider", referenced from:
objc-class-ref in libFirebaseCppAuth.a(credential_ios.mm.o)
"_OBJC_CLASS_$_FIRGoogleAuthProvider", referenced from:
objc-class-ref in libFirebaseCppAuth.a(credential_ios.mm.o)
"_OBJC_CLASS_$_FIRPhoneAuthProvider", referenced from:
objc-class-ref in libFirebaseCppAuth.a(credential_ios.mm.o)
"_OBJC_CLASS_$_FIRPhoneAuthCredential", referenced from:
objc-class-ref in libFirebaseCppAuth.a(user_ios.mm.o)
"_OBJC_CLASS_$_FIROptions", referenced from:
objc-class-ref in libFirebaseCppApp.a(app_ios.mm.o)
"_OBJC_CLASS_$_FIROAuthProvider", referenced …