1. 使用Git的命令行接口进行checkout操作，这种方法需要在密钥/密码设置中添加凭证，参考代码示例：

- script: |
    git config --global http.extraHeader "AUTHORIZATION: bearer $(System.AccessToken)"
    git clone --progress --verbose https://github.com/OrgName/RepoName.git "$(Build.ArtifactStagingDirectory)/Repo"

2. 对长文件路径进行截断，将文件拷贝到另一个目录下进行处理，示例代码：

- task: PowerShell@2
  inputs:
    targetType: 'inline'
    script: |
      $workingDirectory = "${{ '($(Build.SourcesDirectory))' :replace '\\', '\\\\' }}"
      $maxPath = 260
      Get-ChildItem -Path $workingDirectory -File -Recurse -ErrorAction SilentlyContinue | ForEach-Object {
        if ($_.FullName.Length -gt $maxPath) {
          $newPath = Join-Path -Path $(Agent.BuildDirectory) -ChildPath $_.Name
          Copy-Item -Path $_.FullName -Destination $newPath -Force
          Remove-Item -Path $_.FullName -Recurse -Force
          Write-Output "$($_.FullName) has been truncated and moved to $newPath."
        }
      }
  displayName: 'Truncate long paths'

使用第二种方法时，需要在build pipeline的任务列表中添加解决方案，并修改其路径以使用截断后的文件。