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System.IO.Tests fails with "Unexpected error code getting attributes 64 from path \\LOCALHOST" #120974

@jkotas

Description

@jkotas

Build Information

Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1181840
Build error leg or test failing: System.IO.FileSystem.Tests.WorkItemExecution
Pull request: #119878

Error Message

Fill the error message using step by step known issues guidance.

{
  "ErrorMessage": "Unexpected error code getting attributes 64 from path \\\\LOCALHOST",
  "ErrorPattern": "",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1181840
Error message validated: [Unexpected error code getting attributes 64 from path \LOCALHOST]
Result validation: ❌ Known issue did not match with the provided build.
Validation performed at: 10/22/2025 2:11:40 PM UTC

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1181840
Error message validated: [Unexpected error code getting attributes 64 from path \\LOCALHOST]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 10/22/2025 2:17:17 PM UTC

Report

Build Definition Test Pull Request
1190130 dotnet/runtime System.IO.FileSystem.Tests.WorkItemExecution
1189705 dotnet/runtime System.IO.FileSystem.Tests.WorkItemExecution
1189162 dotnet/runtime System.IO.FileSystem.Tests.WorkItemExecution
1188795 dotnet/runtime System.IO.FileSystem.Tests.WorkItemExecution
1188689 dotnet/runtime System.IO.FileSystem.Tests.WorkItemExecution
1188687 dotnet/runtime System.IO.FileSystem.Tests.WorkItemExecution #121167
1188210 dotnet/runtime System.IO.FileSystem.Tests.WorkItemExecution
1187788 dotnet/runtime System.IO.FileSystem.Tests.WorkItemExecution
1187342 dotnet/runtime System.IO.FileSystem.Tests.WorkItemExecution
1186385 dotnet/runtime System.IO.FileSystem.Tests.WorkItemExecution
1186061 dotnet/runtime System.IO.FileSystem.Tests.WorkItemExecution
1185668 dotnet/runtime System.IO.FileSystem.Tests.WorkItemExecution
1185098 dotnet/runtime System.IO.FileSystem.Tests.WorkItemExecution
1184245 dotnet/runtime System.IO.FileSystem.Tests.WorkItemExecution
1183074 dotnet/runtime System.IO.FileSystem.Tests.WorkItemExecution
1182479 dotnet/runtime System.IO.FileSystem.Tests.WorkItemExecution
1182408 dotnet/runtime System.IO.FileSystem.Tests.WorkItemExecution #119878
1181840 dotnet/runtime System.IO.FileSystem.Tests.WorkItemExecution #119878

Summary

24-Hour Hit Count 7-Day Hit Count 1-Month Count
2 13 18

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    Known Build ErrorUse this to report build issues in the .NET Helix tabarea-System.IOblocking-clean-ciBlocking PR or rolling runs of 'runtime' or 'runtime-extra-platforms'

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