问题
Encountering this issue in Xcode, solutions I've tried:
- Enabled modules to YES and NO
- Reinstalled Xcode 9.4.1 by deleting 9.4.1 and
~/Library/Developer - Downgraded command lines tools to 9.4.1
- Downgraded Cocoapods to 1.4.0 from 1.5.3
I'm at a loss at this point can someone point me to the right direction here? I've already spent an entire day on this. Other projects build fine though.
回答1:
I SOLVED IT!
XCode was adding the following Header Search Paths:
/usr/include/libxml2 recursive
/usr/include/libxml2 non-recursive
But libxml2 is already included in the SDK from XCode.app via $(inherited) search path so everything was conflicting.
Removed those two /usr/include/libxml2 paths at the top of my folder hierarchy fixed it!
Thank the XCode gods.
回答2:
I got redefinition of module when was working on own framework and added a first .m file (as a part of Cocoa Touch Class) and created module.modulemap file. Please note that this error is shown even if you do not add a path into Module Map File
To solve this issue I just renamed a module.modulemap to ModuleName.modulemap
来源：https://stackoverflow.com/questions/51255621/xcode-9-4-1-could-not-build-module-and-redefinition-of-module-cant-build