導入第三方報錯warning: -no_pie ignored for arm64 symbol(s) not found for architecture arm64

最近在老項目裏添加BGFMDB及AFNetWorking的時候一直報錯，具體錯誤信息如下： ld: warning: -no_pie ignored for arm64 Undefined symbols for architecture arm64: "_OBJC_CLASS_$_NSManagedObject", referenced from: objc-class-ref in BGToo

>>阅读原文<<