debug模式下build 会遇到 React/RCTBridgeModule.h' file not found 的问题

解决办法，先选择targets下的React 进行一次编译，成功后，再选择回project，进行编译

release模式下，构建或编译时遇到 React/RCTBridgeModule.h' file not found 的问题

To solve the issue, you have to do the following:

1. In Xcode, go to the project scheme (Product -> Scheme -> Manage Scheme -> double click your project).
2. Click on the 'Build' option at the left pane.
3. Uncheck 'Parallelize Build' under Build Options.
4. Then in Targets section, click ' + ' button then search for 'React'. Select it and click ' Add '.
5. 'React' should now appear under Targets section. Click and drag it to the top so that it will be the first item in the list (before your project).
6. Clean the project and build.

Note: You might still have similar header issue with other libraries (e.g. react-native-fbsdk) that are referring to those react native .h files.