Xcode6编译SDWebImage报错解决方法(SDWebImageDownloaderOperation.m错误)

报错：Use of undeclared identifier ‘_executing‘ / ‘_finished‘；

解决方法：

在SDWebImageDownloaderOperation类的实现中(@implementation里)添加：

1 @synthesize executing = _executing;
2 @synthesize finished = _finished;

即可。