Reply to module map file '/Users/hosein/Library/Developer/Xcode/DerivedData/Sporty-ficshtjjzxcsgkaohfxowaxpyivr/Build/Products/Debug-iphonesimulator/YogaKit/YogaKit.modulemap' not found I wasted my whole day to looking an answer for this issue, still no luck. Have anyone found a way to solve this? Agree with @AustinAndrews , having issue with existing projects, not new. Developer Tools & Services Xcode Jan ’21