Access Is Denied to log file

Have an issue with this error message:

LibGit2Sharp.LibGit2SharpException: Could not open 'c:/../.git/logs/HEAD' for writing: Access is denied.

   at LibGit2Sharp.Core.Ensure.HandleError(Int32 result) in c:\projects\libgit2sharp\LibGit2Sharp\Core\Ensure.cs:line 160
   at LibGit2Sharp.ReferenceCollection.MoveHeadTarget[T](T target) in c:\projects\libgit2sharp\LibGit2Sharp\ReferenceCollection.cs:line 631
   at LibGit2Sharp.Repository.Checkout(Branch branch, CheckoutOptions options) in c:\projects\libgit2sharp\LibGit2Sharp\Repository.cs:line 911

• We tried restarting process, and restarting the machine, this didn't immediately fix issue.
• It was only after deleting the entire folder, and making a new checkout that we could stop the error.
• We were able to use git command line and source tree on the folder with no problems..

先檢查經過 Core/Ensure.cs、ReferenceCollection.cs 和 Repository.cs 的失敗路徑，然後將回報的 checkout 行為與命令列 Git 和 SourceTree 進行比較。完成的標準是找出 .git/logs/HEAD 寫入遭拒的可重現原因，並記錄或驗證針對該情境的修正。