"An tree object with SHA *** could not be found" with fetchDepth: 0

[oruchreis]

Hi,
As stated in the document, I made fetchDepth:0 to use this package on Azure Devops, but I still get the following error during the build phase:

error MSB4018: The "Nerdbank.GitVersioning.Tasks.GetBuildVersion" task failed unexpectedly. [/home/ubuntu/.nuget/packages/nerdbank.gitversioning/3.7.112/build/PrivateP2PCaching.proj]
error MSB4018: Nerdbank.GitVersioning.GitException: An tree object with SHA 30b07c3f71f16fee9b6073fbf8831458ae0ebf11 could not be found. [/home/ubuntu/.nuget/packages/nerdbank.gitversioning/3.7.112/build/PrivateP2PCaching.proj]
error MSB4018:    at Nerdbank.GitVersioning.ManagedGit.GitRepository.GetObjectBySha(GitObjectId sha, String objectType) [/home/ubuntu/.nuget/packages/nerdbank.gitversioning/3.7.112/build/PrivateP2PCaching.proj]
error MSB4018:    at Nerdbank.GitVersioning.ManagedGit.GitRepository.GetTreeEntry(GitObjectId treeId, ReadOnlySpan`1 nodeName) [/home/ubuntu/.nuget/packages/nerdbank.gitversioning/3.7.112/build/PrivateP2PCaching.proj]
error MSB4018:    at Nerdbank.GitVersioning.Managed.ManagedVersionFile.GetVersion(GitCommit commit, String repoRelativeProjectDirectory, Dictionary`2 blobVersionCache, String& actualDirectory) [/home/ubuntu/.nuget/packages/nerdbank.gitversioning/3.7.112/build/PrivateP2PCaching.proj]
error MSB4018:    at Nerdbank.GitVersioning.Managed.ManagedVersionFile.GetVersionCore(String& actualDirectory) [/home/ubuntu/.nuget/packages/nerdbank.gitversioning/3.7.112/build/PrivateP2PCaching.proj]
error MSB4018:    at Nerdbank.GitVersioning.VersionFile.GetVersion(String& actualDirectory) [/home/ubuntu/.nuget/packages/nerdbank.gitversioning/3.7.112/build/PrivateP2PCaching.proj]
error MSB4018:    at Nerdbank.GitVersioning.VersionFile.GetVersion() [/home/ubuntu/.nuget/packages/nerdbank.gitversioning/3.7.112/build/PrivateP2PCaching.proj]
error MSB4018:    at Nerdbank.GitVersioning.VersionOracle..ctor(GitContext context, ICloudBuild cloudBuild, Nullable`1 overrideVersionHeightOffset) [/home/ubuntu/.nuget/packages/nerdbank.gitversioning/3.7.112/build/PrivateP2PCaching.proj]
error MSB4018:    at Nerdbank.GitVersioning.Tasks.GetBuildVersion.ExecuteInner() in D:\a\1\s\src\Nerdbank.GitVersioning.Tasks\GetBuildVersion.cs:line 247 [/home/ubuntu/.nuget/packages/nerdbank.gitversioning/3.7.112/build/PrivateP2PCaching.proj]
error MSB4018:    at System.RuntimeMethodHandle.InvokeMethod(Object target, Void** arguments, Signature sig, Boolean isConstructor) [/home/ubuntu/.nuget/packages/nerdbank.gitversioning/3.7.112/build/PrivateP2PCaching.proj]
error MSB4018:    at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr) [/home/ubuntu/.nuget/packages/nerdbank.gitversioning/3.7.112/build/PrivateP2PCaching.proj]

The head of the pipeline file looks like this:

steps:
- checkout: self
  persistCredentials: true
  fetchDepth: 0
  fetchTags: true
  clean: true
  displayName: 'Checkout Repository'
  
- script: |
    dotnet restore Project.sln /nowarn:NU1900
  displayName: 'Restore'

- script: |
    dotnet build Project.sln --configuration $(buildConfiguration) --no-restore /nowarn:NU1900
  displayName: 'Build'

And Directory.Packages.props file looks like this:

<Project>
  <Sdk Name="Microsoft.Build.CentralPackageVersions" Version="2.1.3" />
  <PropertyGroup>
    <ManagePackageVersionsCentrally>true</ManagePackageVersionsCentrally>
    <CentralPackageTransitivePinningEnabled>true</CentralPackageTransitivePinningEnabled>
  </PropertyGroup>
  ...
  ...
  <ItemGroup>
    <!-- GLOBAL PACKAGES -->
    <GlobalPackageReference Include="Nerdbank.GitVersioning" Version="3.7.112" />
    <GlobalPackageReference Include="Microsoft.SourceLink.AzureRepos.Git" Version="8.0.0" />
  </ItemGroup>
</Project>

By the way the target framework is .net 9.0, I'm building with .net sdk 9.0.100 and I can build in my development machine without any issues. Also I can use nbgv get-version without any error in azure devops or local machine.

Edit: The commit with 30b07c3f71f16fee9b6073fbf8831458ae0ebf11 is corresponding with symbolic link of a folder. When I delete symbolic link and move the actual folder, it can build. But I need to use symbolic link.

[AArnott]

The commit with 30b07c3f71f16fee9b6073fbf8831458ae0ebf11 is corresponding with symbolic link of a folder. When I delete symbolic link and move the actual folder, it can build. But I need to use symbolic link.

Are you saying that that commit added a symbolic link to the tree? Can you describe what you did to add it?
Does it only fail when you try to build something within that symbol folder?

[oruchreis]

I did only this:

mklink /D SymLinkFolder ../RealFolder

then commited it. After this error occured, I've deleted SymLinkFolder, moved RealFolder to symlinked location, then pushed force(amend) on git, and it worked.
In short:
Error with git commit has:

    -> RealFolder
    -> OtherFolder
         ->SymLinkedFolder ---> ../RealFolder

For fixing this build error I've deleted SymLinkedFolder, and moved RealFolder, and overrided above commit with this by push force:

    -> OtherFolder
        ->RealFolder 

By the way in my local dev machine it works with symlinked commit, but it didn't work in azure devops pipeline.

[AArnott]

Thanks. I suspect this is a case we missed handling in our managed git engine. Can you please refer to https://github.com/dotnet/Nerdbank.GitVersioning/releases/tag/v3.4.142-alpha for the workaround that activates the libgit2 engine and report on whether that works?