项目中 Xcode 生成的缺少必需的模块“SwiftShims”错误

Question

I copied my project in a running state but the copied project doesn't work for me although the actual project is running fine. When I build my copied project it gives me the following error:

I have cleared the cache and the derived data but the build still fails.

Does anyone have an idea what might cause this issue? Thanks in advance.

Answer 1

如果您使用CocoaPods ，打开yourProject.workspace而不是yourProject.xcodeproj 。

Answer 2

Did you try to remove the cache ?

rm -rf /Users/abdulrehman/Desktop/StudentMentor/DerivedData/ModuleCache/DLJPQMLQI1Q/

(I might have wrong copied your file path. So feel free to type it manually if there is nothing to remove at this path)

Answer 3

如果您使用 SPM，删除.build文件夹并重新运行swift build可以解决我的问题。

Answer 4

• Goto your project folder
• Delete the contents inside the DerivedDataXcode folder.
• Clean the project
• Run.

Answer 5

我遇到了同样的错误，但原因是将不同的 iOS 版本指定为 Podfile 的platform :ios和我的项目的部署目标。

Answer 6

SwiftShims is a module defined in the standard library. It shouldn't be missing. I think it's because your DerivedData path changed, and now the compiler can't find its cache anymore.

Answer 7

I had the same issue...and after a lot of trial and error, the following worked for me..

1. Open your Xcode Workspace File -> Project_name(directory option on left) -> build settings -> Excluded Architectures -> Select 'Any iOS simulator SDK' and type arm64 in front of that ( for both build and release).

2. Repeat the same procedure for pods

3. Go to VS code and delete pod-lock and pod folder

4. open podfile and Paste the following code right above "target 'name-tvOS' do" in podfile.

   post_install do |installer| flipper_post_install(installer) installer.pods_project.build_configurations.each do |config| config.build_settings["EXCLUDED_ARCHS[sdk=iphonesimulator*]"] = "arm64" end end end

(Note: some of the code body form above may already be there. In that case replace that part with this.)

5. Save it and run 'pod install' in your project's terminal.

6. go back to xcode and clear build (Cmd+Shift+K) and then build your project (Cmd+B)

Hopefully it will build without any issues.. Happy Coding!

Answer 8

I have once encountered for a private local pod, which somehow Cocoapod set the lib product name as eg. "MyLib-6c4b1003" -- with a prefix in hex.

This random hex somehow changed, but the project Other Link Flags still using the old one. I did the search to find out the references to the old hex and deleted them, run pod install and the right name will be used.

I still cannot understand why there is this random hex in the prefix, but seems like Cocoapods setting up of the project could reference to the wrong one.

Answer 9

I had a similar issue when I wanted to remove Alamofire from Cocoapods . then it needs to delete something:

target -- Build Settings -- Other Swift Flags

This junk of code worked for me.

Answer 10

You may get this error if you rename the project directory.

For your reference, I was using Flutter, so

flutter clean

It was solved with.

Answer 11

It happened to me when I was running the release version and switched back to the Debug version with Product > Scheme > edit schemes .

Deleting derived data didn't help.

But simply doing Product > Clean Build Folder and restarting XCode fixed the issue.

Answer 12

如果您在预览画布中看到此错误并且诊断“mtime changed”：

'\/var\/folders\/kv\/t_w2wdds3m1_0lr02hcp3dgw0000gn\/C\/clang\/ModuleCache\/12TRQXIDQ8QQD\/SwiftShims-2TTN5UXQBRCCQ.pcm' was built: mtime changed<\/code>

删除该文件夹中的所有 .pcm 文件，然后重试。您机器上的文件夹会有所不同。复制位置并运行：

rm <paste path here>/*.pcm