upload file Exceptions - Missing IsExist Method

[emadalslahi]

I'm trying to use this lib but When I upload files the respose came with no exception but file didnot uploaded

my code :

Public Async Sub uploadFile()
        Try
            _stpWtch.Restart()
            txt_log.AppendText($" {Environment.NewLine} ============================ uploadFile ======== {_stpWtch.Elapsed} ===============")
            openConn()

            Using _client = New WebDavClient(clientParams)

                Dim _dest_path = $"{_domainName}{_rootPath}{txt_rmot_fil.Text}"

                If chk_pth.Checked Then
                    Try
                        txt_log.AppendText($" {Environment.NewLine}  try to mak dir   [{_stpWtch.Elapsed}] ")
                        Await _client.Mkcol(_dest_path)
                        txt_log.AppendText($" {Environment.NewLine} mkDir {_dest_path}  [{_stpWtch.Elapsed}] ")
                    Catch ex As Exception
                    End Try
                Else
                    txt_log.AppendText($" {Environment.NewLine} ignor chk path  [{_stpWtch.Elapsed}] ")
                End If
                Dim _dest_path_final = $"{_dest_path}/{Path.GetFileName(txt_brws.Text)}"
                Await _client.PutFile(_dest_path_final,
                                      File.OpenRead($"{txt_brws.Text}")) ', "text/plain"

                txt_log.AppendText($" {Environment.NewLine} Compelete uploading file to {_dest_path} [{_stpWtch.Elapsed}]")
                _stpWtch.Stop()
            End Using
        Catch ex As Exception
            _stpWtch.Stop()
            txt_log.AppendText($" {Environment.NewLine} Exception Uploading [ {ex.Message}] at  [{_stpWtch.Elapsed}]")
        End Try
    End Sub

spacially when upload to folder that isnot exist
you can seen that Iam usign mkcol to create folder each time bcz no IsExist Method that chek if file or path is exist