Publish task consistently failing with dotnet sdk version 10.0.100. It worked fine with sdk version 9.0.306

[manishpatel42]

Description

Publish function app task is consistently failing on newer dotnet sdk version (10.0.100). We have pull of public agents and agents that have older version of dotnet sdk (9.0.306), it will work just fine.

It's consistently failing on remove directory step. check out below snippet. Ther are not other running processes. Unless, if zipping is running operation in parallel but reporting successful before finishing tasks in background.

Platforms affected

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

Runner images affected

• Ubuntu 22.04
• Ubuntu 24.04
• Ubuntu Slim
• macOS 13
• macOS 13 Arm64
• macOS 14
• macOS 14 Arm64
• macOS 15
• macOS 15 Arm64
• macOS 26 Arm64
• Windows Server 2019
• Windows Server 2022
• Windows Server 2025

Image version and build link

Image: windows-2025
Version: 20251125.122.1

Is it regression?

Image: windows-2025 Version: 20251102.77.1

Expected behavior

publish task should not fail on directory remove step.

Actual behavior

publish task is failing on directory remove step. It was working fine until agents were updated to dotnet sdk 10.0.100.

Repro steps

Publish function app with larger dlls

• task: DotNetCoreCLI@2
  displayName: 'Publish Function App'
  inputs:
  command: publish
  publishWebProjects: false
  projects: |
  **/*Functions.csproj
  arguments: '--configuration $(buildConfiguration) --output $(build.artifactstagingdirectory)'

[shamil-mubarakshin]

Hey @manishpatel42, I couldn't reproduce the issue with some sample project.
Please provide steps for us to reproduce the issue and perform troubleshooting.
Meanwhile, could you also test if any of the following works:

• Add UseDotNet@2 task with .net 9.*
• Add zipAfterPublish: false to DotNetCoreCLI@2. later perform zipping in a separate step, something like

Compress-Archive -Path "$(Build.SourcesDirectory)/$(PUBLISH_DIR)/*" -DestinationPath "$(Build.SourcesDirectory)/publish.zip"

[dmmusil]

See also: microsoft/azure-pipelines-tasks#21528