Unknown argument type ‘__attribute__‘ in method -[RCTAppState getCurrentAppState:error:]. -09-23

在Xcode搜索 RCTParseUnused 方法，

修改为：

static BOOL RCTParseUnused(const char **input)

{

  return RCTReadString(input, "__unused") ||

         RCTReadString(input, "__attribute__((__unused__))") ||

         RCTReadString(input, "__attribute__((unused))");

}