iOS No profiles for '' were foun

报错问题如下：

The provisioning profile specified in your build settings (“xxx”) has an AppID of “com.xxx.xxx” which does not match your bundle 

identifier “com.xxx.xxx”. Xcode can resolve this issue by downloading a new provisioning profile from the Member Center.

解决方法如下：

1.打开项目的文件夹，右键点击“项目名.xcodeproj”，显示包内容；

2.双击打开project.pbxproj文件；

3.按下command+F查找内容，在搜索框中输入PROVISIONING_PROFILE，会看到形如：PROVISIONING_PROFILE = ""; 这样的键值对，把它们全部删除掉；

4.保存，关闭xcode重新打开项目就可以了