UnityEditor.AssetServer.GetAssetServerError C# (CSharp) Method

        public static extern string GetAssetServerError();
        [MethodImpl(MethodImplOptions.InternalCall)]

 public bool DoGUI()
 {
     if (constants == null)
     {
         constants = new ASMainWindow.Constants();
     }
     if (this.resetKeyboardControl)
     {
         this.resetKeyboardControl  = false;
         GUIUtility.keyboardControl = 0;
     }
     GUILayout.BeginHorizontal(new GUILayoutOption[0]);
     GUILayout.BeginVertical(constants.groupBox, new GUILayoutOption[0]);
     GUILayout.Box("Server Connection", constants.title, new GUILayoutOption[0]);
     GUILayout.BeginVertical(constants.contentBox, new GUILayoutOption[0]);
     this.DoConfigGUI();
     if (AssetServer.GetAssetServerError() != string.Empty)
     {
         GUILayout.Space(10f);
         GUILayout.Label(AssetServer.GetAssetServerError(), constants.errorLabel, new GUILayoutOption[0]);
         GUILayout.Space(10f);
     }
     GUILayout.EndVertical();
     GUILayout.EndVertical();
     this.DoProjectsGUI();
     GUILayout.EndHorizontal();
     return(true);
 }