A Certificate is required to complete the authentication

Hi,

When I trying to clone a repository, I am getting an Unhandled error message.
"send request failed: A certificate is required to complete the authentication"
Please let me know what wrong I am doing.

CloneOptions co = new CloneOptions();
co.CredentialsProvider = (_url, _user, _cred) => new UsernamePasswordCredentials { Username = "abc", Password = "abc@123" };

        Repository.Clone("https://abc.com/stash/scm/work.git", @"D:\EP", co);

public static RepositorySafeHandle git_clone(
string url,
string workdir,
ref GitCloneOptions opts)
{
RepositorySafeHandle repo;
int res = NativeMethods.git_clone(out repo, url, workdir, ref opts);
Ensure.ZeroResult(res);
return repo;
}
Error line is in bold

先檢查 CloneOptions.CredentialsProvider 以及報告中顯示的 Repository.Clone 呼叫，然後追蹤 NativeMethods.git_clone 和 Ensure.ZeroResult 如何呈現該失敗。在可比的伺服器上重現 HTTPS 複製，並判定憑證要求是由程式庫處理還是由環境處理；必須確認原因並提供已記錄或經測試的解決方案，才算完成。