[ci-scan] Test failure: Errata4.TestXslTransform on tvos-arm64 (UnauthorizedAccessException)

[github-actions]

Build Information

Build: https://dev.azure.com/dnceng-public/public/_build/results?buildId=1414719
Build error leg or test failing: tvos-arm64 Release AllSubsets_CoreCLR - System.Private.Xml.Tests

Error Message

{
  "ErrorMessage": "xmlResolver_document_function_absolute_uri.xsl' is denied",
  "ErrorPattern": "",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

Additional Context

Summary: System.Xml.Tests.XslCompiledTransformApi.Errata4.TestXslTransform fails on tvos-arm64 with System.UnauthorizedAccessException when attempting to access xmlResolver_document_function_absolute_uri.xsl inside the tvOS app bundle. The tvOS sandbox restricts file access in the app bundle directory.

Failed in (2+):

• runtime-extra-platforms 1414719 (2026-05-10)
• runtime-extra-platforms 1414320 (2026-05-09)

Failed tests:

runtime-extra-platforms (tvos-arm64 Release AllSubsets_CoreCLR)
- osx.15.amd64.appletv.open
  - System.Xml.Tests.XslCompiledTransformApi.Errata4.TestXslTransform

Error Message:

[FAIL] System.Xml.Tests.XslCompiledTransformApi.Errata4.TestXslTransform
System.TypeInitializationException : The type initializer for 'System.Xml.Tests.XslCompiledTransformApi.Errata4' threw an exception.
---- System.UnauthorizedAccessException : Access to the path '...xmlResolver_document_function_absolute_uri.xsl' is denied.

Impact on platforms:

• runtime-extra-platforms + tvos-arm64 + osx.15.amd64.appletv.open

Recommended action: The tvOS sandbox prevents write access to certain paths within the app bundle. The test or its test data setup may need to use a writable directory (e.g., Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData)), or the test should be annotated with [ActiveIssue] for tvOS until the root cause is fixed.

Generated by CI Outer-Loop Failure Scanner

Note

🔒 Integrity filter blocked 1 item

The following item was blocked because it doesn't meet the GitHub integrity level.

• #92468 search_issues: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".

To allow these resources, lower min-integrity in your GitHub frontmatter:

tools:
  github:
    min-integrity: approved  # merged | approved | unapproved | none

Generated by CI Outer-Loop Failure Scanner · ● 49.6M · ◷

Report

Build	Repository	Test	Pull Request
1446635	dotnet/runtime	System.Private.Xml.Tests.WorkItemExecution
1429699	dotnet/runtime	System.Xml.XslCompiledTransformApiTests.CNDP1_1SP1Test.var2(xslInputType: URI, readerType: XmlValidatingReader, outputType: TextWriter, navType: XPathDocument)	#128408
1427030	dotnet/runtime	System.Xml.XslCompiledTransformApiTests.CTransformConstructorWithFourParametersTest.ValidCases	#125437
1426342	dotnet/runtime	System.Xml.XslCompiledTransformApiTests.CTransformConstructorWithFourParametersTest.InValidCases	#125437
1426173	dotnet/runtime	System.Private.Xml.Tests.WorkItemExecution	#128284
1425947	dotnet/runtime	System.Xml.XslCompiledTransformApiTests.CNDP1_1SP1Test.var2(xslInputType: URI, readerType: XmlValidatingReader, outputType: TextWriter, navType: XPathDocument)
1424920	dotnet/runtime	System.Private.Xml.Tests.WorkItemExecution	#128068
1424079	dotnet/runtime	System.Private.Xml.Tests.WorkItemExecution

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
0	0	8

[dotnet-policy-service]

Tagging subscribers to this area: @dotnet/area-system-xml
See info in area-owners.md if you want to be subscribed.

[kotlarmilos]

Should be fixed in #128049

[kotlarmilos]

Resolved. Errata4.TestXslTransform on tvos-arm64 has not failed since 2026-06-03 (verified via CI test telemetry; 0 hits in the last 8 days). Closing; please reopen if it recurs.