You signed in with another tab or window. Reload to refresh your session.You signed out in another tab or window. Reload to refresh your session.You switched accounts on another tab or window. Reload to refresh your session.Dismiss alert
{{ message }}
Repository navigation
[ci-scan] Test failure: SOS.UnitTests cannot find .NET 10 runtime #134603
Both Windows x64 SOS test legs fail before test discovery. The generated SOS.UnitTests.exe apphost requires .NET 10, but the test runtime directory contains only .NET 11:
You must install or update .NET to run this application.
App: D:\\a\\_work\\1\\s\\artifacts\\bin\\SOS.UnitTests\\Release\\net10.0\\SOS.UnitTests.exe
Architecture: x64
Framework: 'Microsoft.NETCore.App', version '10.0.0' (x64)
.NET location: D:\\a\\_work\\1\\s\\artifacts\\dotnet-test\\
The following frameworks were found:
11.0.0-rc.2.26465.113 at [D:\\a\\_work\\1\\s\\artifacts\\dotnet-test\\shared\\Microsoft.NETCore.App]
The same runtime-host failure affected the diagnostics unit-test suite broadly; SOS did not reach test discovery or execute any assertions. A matching failure also occurred on the main branch in build 1610128, confirming this is a shared diagnostics runtime-provisioning or test-host selection issue rather than an SOS product failure.
Workflow artifact: ci-failure-scan
Artifact kind: kbe-verification
Verified match count: 2 SOS test-log hits in build 1609461; reproduced on main in build 1610128
Note
This issue body was prepared with GitHub Copilot.
Known issue validation
Build: 🔎https://dev.azure.com/dnceng-public/public/_build/results?buildId=1609461 Error message validated:[Framework: 'Microsoft.NETCore.App', version '10.0.0' (x64) .NET location: ] Result validation: ❌ Known issue did not match with the provided build. Validation performed at: 9/24/2026 5:37:26 PM UTC
Source: refs/heads/main at 8aae212bb529c47b32ffca2ab3f5c87907f6861e
Result: failed
This confirms the runtime-host failure is not specific to PR #133986. The same Windows diagnostics/SOS provisioning issue occurs on the main branch, so the KBE should remain classified as a shared infrastructure/test-host problem.
Build Information
Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1609461
Build error leg or test failing: DAC_windows_x64_release-SOS.UnitTests; cDAC_windows_x64_release-SOS.UnitTests
Pull request: #133986
Error Details
Both Windows x64 SOS test legs fail before test discovery. The generated
SOS.UnitTests.exeapphost requires .NET 10, but the test runtime directory contains only .NET 11:The same runtime-host failure affected the diagnostics unit-test suite broadly; SOS did not reach test discovery or execute any assertions. A matching failure also occurred on the
mainbranch in build 1610128, confirming this is a shared diagnostics runtime-provisioning or test-host selection issue rather than an SOS product failure.Error Message
{ "ErrorMessage": "Framework: 'Microsoft.NETCore.App', version '10.0.0' (x64)\n.NET location: ", "ErrorPattern": "", "BuildRetry": false, "ExcludeConsoleLog": false }Agentic workflow metadata (ci-failure-scan)
Workflow artifact: ci-failure-scan
Artifact kind: kbe-verification
Verified match count: 2 SOS test-log hits in build 1609461; reproduced on main in build 1610128
Note
This issue body was prepared with GitHub Copilot.
Known issue validation
Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1609461
Error message validated:
[Framework: 'Microsoft.NETCore.App', version '10.0.0' (x64) .NET location:]Result validation: ❌ Known issue did not match with the provided build.
Validation performed at: 9/24/2026 5:37:26 PM UTC
Report
Summary