Xcode 9 “could not build module ‘Foundation’”

Question

When I archive an iPhone project, it returns a failure:

Could not build module \"Foundation\".

However, when I debug on the iPho

Answer 1

Set to YES target's Allow Non-modular Includes in Framework Modules in Build Settings.

Answer 2

what you could try is :

1. Remove your pod.lock file
2. Remove your node_modules
3. yarn install in root dir
4. cd ios
5. pod install
6. clean build folder
7. build

Answer 3

This happened to me after trying to build a third party library. It made a symbolic link in the iPhoneOS.sdk/usr/include to a non-existent header file in iPhoneSimulator.sdk/usr/include.

After deleting the bad symbolic link, Xcode started building correctly again.

Answer 4

Only reinstalling Xcode worked for me.