The `project [Debug]` target overrides the `HEADER_SEARCH_PATHS` build setting defined in `Pods/Target Support Files/Pods-project/Pods-project.debug.xcconfig'. This can lead to problems with the CocoaPods installation
出现这个错误就去工程project里修改它build setting里的HEADER_SEARCH_PATHS项目,加上$(inherited)。
此时重新pod install如果未生效的话可以关闭xcode重新添加。