Failed to emit precompiled header for bridging header

I downloaded a project from GitHub, then pod the following files, some of which are written by OBJ-C and I used a bridge header.

pod ‘SnapKit’
pod ‘MJRefresh’
pod ‘Alamofire’
pod ‘Kingfisher’
pod ‘MBProgressHUD’
pod ‘pop’
pod ‘EVReflection’
pod ‘StreamingKit’
pod ‘iCarousel’
pod ‘ReflectionView’

When I run the project with Xcode 9.0 beta 2, but unfortunately the error log as follows :

error: failed to emit precompiled header '/var/folders/kd/4gh0_kxx3jx4thjb_sssmmcw0000gn/T/EvoRadio-Bridging-Header-97bd5f.pch' for bridging header '/Users/ringo/Downloads/EvoRadio-master/EvoRadio/Resources/EvoRadio-Bridging-Header.h'

I have googled, but no such issue.The error means it needs a PCH file? This is my .pch header configuration: It can't solve it.

How to make it?

Solution 1:

I have tried all of the above steps mentioned in the answers but nothing worked for me, the problem was basically with the deployment target version for the project and in the podfile.

In my project deployment target was 10.0 while in my podfile it was 11.0.

Solution 2:

Note this can also happen if your bridging header imports Objective-C code that itself imports your app's Swift module via myproject-Swift.h. The solution is to use forward declarations for your Swift types and import the project Swift module in the .m file.

@class MySwiftClass or...

typedef NS_ENUM(NSInteger, MySwiftEnumType)

MySwiftEnumType is the lowest level name even for classes. So Swift enum MyClass.MySwiftEnumType becomes just MySwiftEnumType

Solution 3:

Make sure you're opening the proper project workspace, otherwise, the Podfile may not have all the resources it needs to compile.

I saw this same error on a project that had been working fine previously.

I discovered that I had accidentally opened the ProjectName.xcodeproj file rather than the ProjectName.xcworkspace file. Opened the xcworkspace file and presto, project was working again!

Solution 4:

I also got exact same issue (Xcode9 beta 6) after I added cocoa pods for Encrypted Core Data.
This is my PodFile:

# Uncomment the next line to define a global platform for your project
platform :ios, '9.0'
pod 'EncryptedCoreData', :git => 'https://github.com/project-imas/encrypted-core-data.git'

target 'Root' do
  # Comment the next line if you're not using Swift and don't want to use dynamic frameworks
  use_frameworks!

  # Pods for Root

  target 'RootTests' do
    inherit! :search_paths
    # Pods for testing
  end

  target 'RootUITests' do
    inherit! :search_paths
    # Pods for testing
  end

end

Solution:
1 I added $(inherited) non-recursive to Search Path -> Header Search Paths
2 Then added ${PODS_ROOT} recursive to Search Path -> User Header Search Paths
Both the above in my projects' target build settings.

Please have a look at these SO answers:
1 Inherit Header Search Paths
2 Inherit User Search Paths