最近学习IOS相关知识. 视频课程[UIImage](https://www.imooc.com/video/12718) 相关知识点: 存储一张本地图片到系统相册中. API: UIImageWriteToSavedPhotosAlbum 按照视频教程Dome中书写代码, 启动报错如下: [access] This app has crashed because it attempted to access privacy-sensitive data without a usage desc…
Undefined symbols for architecture i386: “_OBJC_CLASS_$_XXX”, referenced from: objc-class-ref in XXX ld: symbol(s) not found for architecture i386 clang: error: linker command failed with exit code 1 (use -v to see invocation) 如果真机调试就是 undefined sy…