【iOS 开发】解决使用 CocoaPods 执行 pod install 时出现 - Use the `$（inherited）` flag ... 警告

公司项目在执行 pod install 的时候总是出现很多黄色的警告，因为是警告并不会影响项目的正常编译，一直没有在意，但是总是有很多警告看起来很不舒服，于是就花了点时间解决掉了，下面将解决方法记录下来分享给有同样问题的你们。

警告信息

产生此警告的原因是项目 Target 中的一些设置，CocoaPods 也做了默认的设置，如果两个设置结果不一致，就会造成问题，显示的警告信息如下：

[!] The `client_ios_fm_a [Debug]` target overrides the `FRAMEWORK_SEARCH_PATHS` build setting defined in `Pods/Target Support Files/Pods-client_ios_fm_a/Pods-client_ios_fm_a.debug.xcconfig'. This can lead to problems with the CocoaPods installation
    - Use the `$(inherited)` flag, or
    - Remove the build settings from the target.

[!] The `client_ios_fm_a [Debug]` target overrides the `ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES` build setting defined in `Pods/Target Support Files/Pods-client_ios_fm_a/Pods-client_ios_fm_a.debug.xcconfig'. This can lead to problems with the CocoaPods installation
    - Use the `$(inherited)` flag, or
    - Remove the build settings from the target.

[!] The `client_ios_fm_a [Debug]` target overrides the `OTHER_CFLAGS` build setting defined in `Pods/Target Support Files/Pods-client_ios_fm_a/Pods-client_ios_fm_a.debug.xcconfig'. This can lead to problems with the CocoaPods installation
    - Use the `$(inherited)` flag, or
    - Remove the build settings from the target.

[!] The `client_ios_fm_a [Debug]` target overrides the `HEADER_SEARCH_PATHS` build setting defined in `Pods/Target Support Files/Pods-client_ios_fm_a/Pods-client_ios_fm_a.debug.xcconfig'. This can lead to problems with the CocoaPods installation
    - Use the `$(inherited)` flag, or
    - Remove the build settings from the target.

[!] The `client_ios_fm_a [Release]` target overrides the `FRAMEWORK_SEARCH_PATHS` build setting defined in `Pods/Target Support Files/Pods-client_ios_fm_a/Pods-client_ios_fm_a.release.xcconfig'. This can lead to problems with the CocoaPods installation
    - Use the `$(inherited)` flag, or
    - Remove the build settings from the target.

[!] The `client_ios_fm_a [Release]` target overrides the `ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES` build setting defined in `Pods/Target Support Files/Pods-client_ios_fm_a/Pods-client_ios_fm_a.release.xcconfig'. This can lead to problems with the CocoaPods installation
    - Use the `$(inherited)` flag, or
    - Remove the build settings from the target.

[!] The `client_ios_fm_a [Release]` target overrides the `OTHER_CFLAGS` build setting defined in `Pods/Target Support Files/Pods-client_ios_fm_a/Pods-client_ios_fm_a.release.xcconfig'. This can lead to problems with the CocoaPods installation
    - Use the `$(inherited)` flag, or
    - Remove the build settings from the target.

[!] The `client_ios_fm_a [Release]` target overrides the `HEADER_SEARCH_PATHS` build setting defined in `Pods/Target Support Files/Pods-client_ios_fm_a/Pods-client_ios_fm_a.release.xcconfig'. This can lead to problems with the CocoaPods installation
    - Use the `$(inherited)` flag, or
    - Remove the build settings from the target.

解决方法

打开项目 Target - Build Settings ，搜索 Other Linker Flags ，在这个设置上加入 $(inherited) 。
打开项目 Target - Build Settings，依次搜索如下图所示的警告上提示的设置名称，将这些设置选项全部改为 $(inherited) ，或者选中这些设置按下 delete 键恢复原设置。

如果有 FRAMEWORK_SEARCH_PATHS 这个设置的警告的话，最好先把当前的设置项记录下来，然后选中设置按下 delete 以后，再把之前的设置加进去，否则编译可能会出现很多报错。
然后重新执行 pod install 或者 pod update 就会发现警告消失了。
如果我的方法不能够解决你的问题的话，可以试一下网上的另一种方法，就是点击项目文件 project.xcodeproj ，右键显示包内容，用文本编辑器打开 project.pbxproj ，command + F 搜索 OTHER_LDFLAGS ，删除搜索到的设置，command + S 保存，然后重新执行 pod install 或者 pod update 。

方法就是这样，希望我的方法能够解决你的问题。