Cannot build Maui 9 with macos-15

[sven-s]

Description

I am trying to build a Maui 9 project with the following command line:

dotnet publish -f net9.0-ios -c Release -p:ArchiveOnBuild=true /p:RuntimeIdentifier=ios-arm64 cpm-app/cpm-app.csproj

I am also setting the xcode version to 16.2 via

sudo xcode-select -s /Applications/Xcode_16.2.0.app/Contents/Developer

but I get the following error i the build:

2025-01-10 14:51:35.165 xcodebuild[8338:37797] Writing error result bundle to /var/folders/sg/7ncxbtp941dd9ql29twtl6jw0000gn/T/ResultBundle_2025-10-01_14-51-0035.xcresult xcodebuild: error: SDK "/Applications/Xcode_16.2.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk" cannot be located. 2025-01-10 14:51:37.449 xcodebuild[8480:38140] Writing error result bundle to /var/folders/sg/7ncxbtp941dd9ql29twtl6jw0000gn/T/ResultBundle_2025-10-01_14-51-0037.xcresult xcodebuild: error: SDK "/Applications/Xcode_16.2.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk" cannot be located. xcrun: error: sh -c '/Applications/Xcode_16.2.0.app/Contents/Developer/usr/bin/xcodebuild -sdk /Applications/Xcode_16.2.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk -find actool 2> /dev/null' failed with exit code 16384: (null) (errno=No such file or directory) xcrun: error: unable to find utility "actool", not a developer tool or in PATH

Platforms affected

• Azure DevOps
• GitHub Actions - Standard Runners
• GitHub Actions - Larger Runners

Runner images affected

• Ubuntu 20.04
• Ubuntu 22.04
• Ubuntu 24.04
• macOS 12
• macOS 13
• macOS 13 Arm64
• macOS 14
• macOS 14 Arm64
• macOS 15
• macOS 15 Arm64
• Windows Server 2019
• Windows Server 2022
• Windows Server 2025

Image version and build link

20250106.547

Is it regression?

no

Expected behavior

The build should succeed

Actual behavior

The build fails

Repro steps

• build a maui .net 9 project