Xcodebuild can not resolve package dependencies using build-wrapper-macosx-x86

Hi, I have an issue with the build-wrapper command:
Our codebase contains Swift & Obj-C code and we use Xcode 12.
build-wrapper version: 6.13 (macosx-x86)

When running the build wrapper command

build-wrapper-macosx-x86 --out-dir sonar-reports xcodebuild -workspace MyProject.xcworkspace -scheme MyProject-Alpha -derivedDataPath derived_data_path build CODE_SIGNING_REQUIRED=NO

we get following error:

...

xcodebuild: error: Could not resolve package dependencies:
  build-wrapper: connect to /tmp/build-wrapper-socket.27NmvM: Operation not permitted
  build-wrapper: connect to /tmp/build-wrapper-socket.27NmvM: Operation not permitted
  build-wrapper: connect to /tmp/build-wrapper-socket.27NmvM: Operation not permitted
  build-wrapper: connect to /tmp/build-wrapper-socket.27NmvM: Operation not permitted
  ...

I think the error is related to Xcode resolving Swift packages. When I run the same xcodebuild command without the build-wrapper package resolution works fine.

The build-wrapper.log ends with these lines:

...
Thu Oct 15 09:56:37 2020: finalizing json file
Thu Oct 15 09:56:37 2020: returned with code: 74

I couldn’t find any information on the returned code.

Hi @heinzl,

you are using an old version of the build-wrapper and perhaps of the cfamily analyzer. Could you please upgrade to the latest version and try again?

I’m sorry I posted the wrong version I’m using 6.13 (macosx-x86)

Hi @heinzl,

what version of macOS are you on? What if you try with a small hello world project?

Hi @mpaladin,

I’m on macOS 10.15.5. I will try a small hello world project with one Swift Package dependency.

Hi @mpaladin, I created a Hello World project (Swift + Obj-C) with only one public Swift Package dependency.
When I run xcodebuild without the build-wrapper Swift Package dependencies are resolved and fetched without an error.

xcodebuild -project BuildWrapperTest.xcodeproj -scheme BuildWrapperTest -derivedDataPath derived_data clean build CODE_SIGNING_REQUIRED=NO

If I run the same command using the build wrapper it fails with the same error I mentioned in my post.

../command-line-tools/sonar-obj-c-build-wrapper/build-wrapper-macosx-x86 --out-dir sonar-reports-test xcodebuild -project BuildWrapperTest.xcodeproj -scheme BuildWrapperTest -derivedDataPath derived_data clean build CODE_SIGNING_REQUIRED=NO

Hi @heinzl,

thank you for your answer. Could you please share this hello world project so I can have a look at it on my side?

@mpaladin Sure! here is the project:
BuildWrapperTest.zip (34.9 KB)

@mpaladin I haven’t mentioned yet that the issue occurs when running it on CI. (CircleCI)

Hi @heinzl,

thank you, I am going to have a look.

Are you getting the same locally?

No, it works locally. We had previously issues with Xcode resolving Swift Packages but it is working now, expect if we use the build-wrapper so there has to be something we have to configure differently when using the build-wrapper. FYI: It worked with the build-wrapper while we used Xcode 11

@mpaladin Thank you for having a look, much appreciated! Let me know if you need any additional information.

Hi @heinzl,

thank you, but if you say that it works locally I don’t see how I can reproduce it.

Yes, but something has to be different when using the buil-wrapper. Maybe you can help me with the error code. How can I get more information on the error code? Is it a error from the build-wrapper or does the build wrapper forward error codes from xcode?

Hi @heinzl ,

the build-wrapper forward error codes of the processes.

For your information I tried the project you provided and it works both locally and on Azure DevOps without any issue. On both tests I used macOS 10.15 and Xcode 12.

Thanks for giving it a try

Hi @heinzl,

I wonder whether in CircleCI there is something which may interfer with build-wrapper and the build. Could you check if the environment contain a variable named DYLD_INSERT_LIBRARIES before launching the build-wrapper?

Thanks I will check that, but in the mean time I found a similar issue https://github.com/samuelmeuli/tmignore/issues/9 I think the cause of the issue could be the same as I experience. It looks like it is a permission/sandboxing issue when running Xcode build from a subprocess or something similar.

A successful run looks like this:

Resolve Package Graph

Fetching https://github.com/ReactiveX/RxSwift.git

Cloning https://github.com/ReactiveX/RxSwift.git

Checking out https://github.com/ReactiveX/RxSwift.git at 6.0.0-rc.1


Resolved source packages:
  RxSwift: https://github.com/ReactiveX/RxSwift.git @ 6.0.0-rc.1

A failed run like this:

Resolve Package Graph

Fetching https://github.com/ReactiveX/RxSwift.git

xcodebuild: error: Could not resolve package dependencies:
  build-wrapper: connect to /tmp/build-wrapper-socket.YiKkHY: Operation not permitted

The fetching takes also a while to complete so my hypothesis is that fetching works but it fails at the cloning step when writing to disk and it fails to access the directory or something.

Could you check if the environment contain a variable named DYLD_INSERT_LIBRARIES before launching the build-wrapper?

No there is no variable like this before launching.