ModuleName-Swift.h file not found in xcode8

Question

I\'m trying to work on a mixed Swift and ObjectiveC project with no luck.

My project is made of 6 targets:

• App
• Core
• CoreTest

Answer 1

For my case, it runs fine in Xcode 8 but files with

#import "Project-Swift.h"

has missing imports as described by LucioB

Using Xcode 9 removes those errors