anchor.diff:      tagPosts[uuid].add(postUuid);
     }
   
  +  //-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-
  +  //-* UTIL: GOOGLE DRIVER
  +  //-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-
  +
   }
positive.code:         }
        });
        if (fileSyncImmediately) {
          PinUtility.writeJsonFile(CartConst.DB_TAGS_PATH, tags)
            .then((_) => PinUtility.writeJsonFile(CartConst.DB_POSTS_PATH, posts))
            .then((_) => completer.complete(null));
        }
      } else {
        completer.complete(null);
  
negative.code:       });
        Future.wait(postRemoveList).then((_) {
          if (fileSyncImmediately) {
            Future.wait([
                PinUtility.writeJsonFile(CartConst.DB_TAGS_PATH, tags),
                PinUtility.writeJsonFile(CartConst.DB_POSTS_PATH, posts)
            ]).then((_) => completer.complete(null));
          } else {
            completer.complete(null);
          }
  