开发中错误及解决方法集锦

1：cocoapods进行如下操作时候报错

pod install

pod update

//错误信息
Updating local specs repositories
Analyzing dependencies
[!] The dependency `FMDB (~> 2.3)` is not used in any concrete target.
The dependency `SDWebImage (~> 3.6)` is not used in any concrete target.

• 解决方案
  http://blog.csdn.net/sjl_leaf/article/details/50506057