SwiftDriver compilation error: com.apple.xcode.tools.swift.compiler is not absolute

[ixsander]

Describe the bug
I have c library swift wrapper project and I am starting to see errors for all of the c header files included in my project. This didn't happen in Xcode 12 and Xcode 13 but starting to see them after upgraded to Xcode 14.

error: Dependency for P1:target-SwiftSMB-c5b2ccc17d5f0c8fd1175d05f13f3d0683a44e681aeb1f425a9cef51a7a8aacb-:Debug:SwiftDriver Compilation Requirements SwiftSMB normal x86_64 com.apple.xcode.tools.swift.compiler is not absolute (libsmb2/include/smb2/smb2.h). (in target 'SwiftSMB' from project 'SwiftSMB')
...
Showing All Messages Command SwiftDriver Compilation Requirements emitted errors but did not return a nonzero exit code to indicate failure

The error doesn't seem to stop build from completing successfully.

Command line:
SwiftDriver\ Compilation\ Requirements SwiftSMB normal x86_64 com.apple.xcode.tools.swift.compiler (in target 'SwiftSMB' from project 'SwiftSMB') cd /Users/alex/Projects/SwiftSMB builtin-Swift-Compilation-Requirements -- /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -module-name SwiftSMB -Onone -enforce-exclusivity\=checked @/Users/alex/Library/Developer/Xcode/DerivedData/PhotoBackup2-bnxhcxnjkjxzzbdqwrgkurniflbr/Build/Intermediates.noindex/SwiftSMB.build/Debug-iphonesimulator/SwiftSMB.build/Objects-normal/x86_64/SwiftSMB.SwiftFileList -DDEBUG -sdk /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator16.0.sdk -target x86_64-apple-ios16.0-simulator -enable-bare-slash-regex -g -module-cache-path /Users/alex/Library/Developer/Xcode/DerivedData/ModuleCache.noindex -Xfrontend -serialize-debugging-options -enable-testing -index-store-path /Users/alex/Library/Developer/Xcode/DerivedData/PhotoBackup2-bnxhcxnjkjxzzbdqwrgkurniflbr/Index.noindex/DataStore -enable-library-evolution -swift-version 5 -I /Users/alex/Library/Developer/Xcode/DerivedData/PhotoBackup2-bnxhcxnjkjxzzbdqwrgkurniflbr/Build/Products/Debug-iphonesimulator -I libsmb2 -I libsmb2/include -I libsmb2/lib -I libsmb2/include/smb2 -F /Users/alex/Library/Developer/Xcode/DerivedData/PhotoBackup2-bnxhcxnjkjxzzbdqwrgkurniflbr/Build/Products/Debug-iphonesimulator -emit-localized-strings -emit-localized-strings-path /Users/alex/Library/Developer/Xcode/DerivedData/PhotoBackup2-bnxhcxnjkjxzzbdqwrgkurniflbr/Build/Intermediates.noindex/SwiftSMB.build/Debug-iphonesimulator/SwiftSMB.build/Objects-normal/x86_64 -c -j8 -enable-batch-mode -incremental -output-file-map /Users/alex/Library/Developer/Xcode/DerivedData/PhotoBackup2-bnxhcxnjkjxzzbdqwrgkurniflbr/Build/Intermediates.noindex/SwiftSMB.build/Debug-iphonesimulator/SwiftSMB.build/Objects-normal/x86_64/SwiftSMB-OutputFileMap.json -use-frontend-parseable-output -save-temps -no-color-diagnostics -serialize-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/alex/Library/Developer/Xcode/DerivedData/PhotoBackup2-bnxhcxnjkjxzzbdqwrgkurniflbr/Build/Intermediates.noindex/SwiftSMB.build/Debug-iphonesimulator/SwiftSMB.build/Objects-normal/x86_64/SwiftSMB.swiftmodule -emit-module-interface-path /Users/alex/Library/Developer/Xcode/DerivedData/PhotoBackup2-bnxhcxnjkjxzzbdqwrgkurniflbr/Build/Intermediates.noindex/SwiftSMB.build/Debug-iphonesimulator/SwiftSMB.build/Objects-normal/x86_64/SwiftSMB.swiftinterface -emit-private-module-interface-path /Users/alex/Library/Developer/Xcode/DerivedData/PhotoBackup2-bnxhcxnjkjxzzbdqwrgkurniflbr/Build/Intermediates.noindex/SwiftSMB.build/Debug-iphonesimulator/SwiftSMB.build/Objects-normal/x86_64/SwiftSMB.private.swiftinterface -Xcc -I/Users/alex/Library/Developer/Xcode/DerivedData/PhotoBackup2-bnxhcxnjkjxzzbdqwrgkurniflbr/Build/Intermediates.noindex/SwiftSMB.build/Debug-iphonesimulator/SwiftSMB.build/swift-overrides.hmap -Xcc -iquote -Xcc /Users/alex/Library/Developer/Xcode/DerivedData/PhotoBackup2-bnxhcxnjkjxzzbdqwrgkurniflbr/Build/Intermediates.noindex/SwiftSMB.build/Debug-iphonesimulator/SwiftSMB.build/SwiftSMB-generated-files.hmap -Xcc -I/Users/alex/Library/Developer/Xcode/DerivedData/PhotoBackup2-bnxhcxnjkjxzzbdqwrgkurniflbr/Build/Intermediates.noindex/SwiftSMB.build/Debug-iphonesimulator/SwiftSMB.build/SwiftSMB-own-target-headers.hmap -Xcc -I/Users/alex/Library/Developer/Xcode/DerivedData/PhotoBackup2-bnxhcxnjkjxzzbdqwrgkurniflbr/Build/Intermediates.noindex/SwiftSMB.build/Debug-iphonesimulator/SwiftSMB.build/SwiftSMB-all-non-framework-target-headers.hmap -Xcc -ivfsoverlay -Xcc /Users/alex/Library/Developer/Xcode/DerivedData/PhotoBackup2-bnxhcxnjkjxzzbdqwrgkurniflbr/Build/Intermediates.noindex/SwiftSMB.build/Debug-iphonesimulator/SwiftSMB.build/all-product-headers.yaml -Xcc -iquote -Xcc /Users/alex/Library/Developer/Xcode/DerivedData/PhotoBackup2-bnxhcxnjkjxzzbdqwrgkurniflbr/Build/Intermediates.noindex/SwiftSMB.build/Debug-iphonesimulator/SwiftSMB.build/SwiftSMB-project-headers.hmap -Xcc -I/Users/alex/Library/Developer/Xcode/DerivedData/PhotoBackup2-bnxhcxnjkjxzzbdqwrgkurniflbr/Build/Products/Debug-iphonesimulator/include -Xcc -isystem -Xcc libsmb2/include -Xcc -isystem -Xcc libsmb2/include/smb2 -Xcc -I/Users/alex/Library/Developer/Xcode/DerivedData/PhotoBackup2-bnxhcxnjkjxzzbdqwrgkurniflbr/Build/Intermediates.noindex/SwiftSMB.build/Debug-iphonesimulator/SwiftSMB.build/DerivedSources-normal/x86_64 -Xcc -I/Users/alex/Library/Developer/Xcode/DerivedData/PhotoBackup2-bnxhcxnjkjxzzbdqwrgkurniflbr/Build/Intermediates.noindex/SwiftSMB.build/Debug-iphonesimulator/SwiftSMB.build/DerivedSources/x86_64 -Xcc -I/Users/alex/Library/Developer/Xcode/DerivedData/PhotoBackup2-bnxhcxnjkjxzzbdqwrgkurniflbr/Build/Intermediates.noindex/SwiftSMB.build/Debug-iphonesimulator/SwiftSMB.build/DerivedSources -Xcc -DDEBUG\=1 -emit-objc-header -emit-objc-header-path /Users/alex/Library/Developer/Xcode/DerivedData/PhotoBackup2-bnxhcxnjkjxzzbdqwrgkurniflbr/Build/Intermediates.noindex/SwiftSMB.build/Debug-iphonesimulator/SwiftSMB.build/Objects-normal/x86_64/SwiftSMB-Swift.h -import-underlying-module -Xcc -ivfsoverlay -Xcc /Users/alex/Library/Developer/Xcode/DerivedData/PhotoBackup2-bnxhcxnjkjxzzbdqwrgkurniflbr/Build/Intermediates.noindex/SwiftSMB.build/Debug-iphonesimulator/SwiftSMB.build/unextended-module-overlay.yaml -working-directory /Users/alex/Projects/SwiftSMB -experimental-emit-module-separately

Environment (please fill out the following information)

• OS: macOS 12.6
• Xcode 14
• swift-driver version: 1.62.8 Apple Swift version 5.7 (swiftlang-5.7.0.127.4 clang-1400.0.29.50)

Additional context
I have tried cleaning up build folder and rebuild project using Xcode 14 but none of them work.

[jb522185660]

I have the same problem,have you resolved it?

[dawilliams-gpsw]

+1. We are also seeing this in our app.

edit: I was given a .xcframework to replace the regular .framework that was causing these 'warning errors', and the 'warning errors' went away.

Important to note, xcodebuild archive commands were failing when these 'warning errors' were present, even though Xcode.app was succeeding. Swapping over to the .xcframework (which subsequently removed the 'warning errors') allows xcodebuild's archive to succeed.

[macatingraoallan]

+1. We are also seeing this in our app.

edit: I was given a .xcframework to replace the regular .framework that was causing these 'warning errors', and the 'warning errors' went away.

Important to note, xcodebuild archive commands were failing when these 'warning errors' were present, even though Xcode.app was succeeding. Swapping over to the .xcframework (which subsequently removed the 'warning errors') allows xcodebuild's archive to succeed.

How can I do this, `swapping over the .xcframewor'?

Thank you.

Having same issue with 3rd party library. And those are not supporting xcframework.

[davidbilly]

Facing same issue. But my swift project import with 3rd party vendor Objective-C framework.

[dawilliams-gpsw]

How can I do this, `swapping over the .xcframewor'?

You could use ar and/or lipo -thin to extract the library files from the .framework file and re-create it as an xcframework using xcodebuild. You may even be able to create an .xcframework from the .framework without extracting the files, if you're only supporting one architecture, although unsure if that will fix the issue.

[DanijelHuis]

We had the same problem with GoogleMaps on Xcode 14. The problem was that we had "User Header Search Paths" set to "${PROJECT_DIR}/Pods", after deleting that the problem disappeared. This problem can also be resolved by using xcframework version of the GoogleMaps library (still in beta).

Note that these "errors" show as errors but build and archive succeeds if done from Xcode. The problem was happening when we used xcodebuild, it just stopped at "Touch xxx.app" without any error (probably because of non-zero return code).

[ixsander]

We had the same problem with GoogleMaps on Xcode 14. The problem was that we had "User Header Search Paths" set to "${PROJECT_DIR}/Pods", after deleting that the problem disappeared. This problem can also be resolved by using xcframework version of the GoogleMaps library (still in beta).

Note that these "errors" show as errors but build and archive succeeds if done from Xcode. The problem was happening when we used xcodebuild, it just stopped at "Touch xxx.app" without any error (probably because of non-zero return code).

I don't have "User Header Search Paths" set but am still getting the error. The root cause maybe different but thanks for letting us know!

error build: Dependency for P0:target-Bro-107552fdf92bce9653f083569aa48d2a9bf3e5f097b5222968822ee5f4f5794a-:Debug:SwiftDriver Compilation Bro normal x86_64 com.apple.xcode.tools.swift.compiler is not absolute (Pods/GooglePlaces/Frameworks/GooglePlaces.framework/Headers/GMSPlacePhotoMetadata.h).

[ionutivan]

Something similar appears also in my app since switching to Xcode 14.0.0:

error: Dependency for P1:target---:Development:SwiftDriver Compilation Requirements normal x86_64 com.apple.xcode.tools.swift.compiler is not absolute (Pods/Firebase/CoreOnly/Sources/Firebase.h).

error: Dependency for P1:target---:Development:SwiftDriver Compilation Requirements normal x86_64 com.apple.xcode.tools.swift.compiler is not absolute (Pods/Firebase/CoreOnly/Sources/module.modulemap).

[DreamLordOneiros]

I Started Getting This On One Of Our Team's Working Branches, The Description Wasn't That Helpful, I Even Downgraded Xcode To See If That Was The Problem But That Wasn't It, Although There Was An Improve On The Error Message, Which Wasn't Either The Cause.

I Tried Previous Builds To Determine Which Was The Latest To Work Fine, And To Validate That It Was Still Building Properly. I Found The Latest Passing Build And Retried It(It Passed So It Wasn't The Recently Upgrade To Xcode 14). I Reviewed The Commit On The First Failing Build And There Was Something Weird There, A Renamed File Was Showing "⧵t⧵t⧵" Substring On The File's Path, The Following Commits Were Showing The File Being Re Added But While Pulling The Code, The File Wasn't There.

The Fix On My Case Was To Return To The Last Working Code, Branch From There, And Manually Adding The Missing Code.

Hope This Helps Someone.

[ixsander]

The error messages are disappeared by changing modulemap file from "extern_c" to "system"
module ABC [system] { ... }

[saqib-saud]

Thanks @ixsander your solution works for me too.

For others: In your .framework file, look for module.modulemap in Modules folder.

I had module declared like
framework module ABC {}

after changing that to
framework module ABC [system] {} I got rid of the errors.

[TsnumiDC]

it also can solve my waring[error]
so whats the principle of the [system] ?
dose it make some other error?