@Override
          public void process(@Nullable HgCommandResult result) {
            if (HgErrorUtil.hasErrorsInCommandExecution(result)) {
              new HgCommandResultNotifier(project)
                .notifyError(TAG_CREATION_ERROR,
                             result,
                             HgBundle.message("hg4idea.branch.creation.error"),
                             HgBundle.message("action.hg4idea.CreateTag.error.msg", dialog.getTagName()));
            }
          }
@Override
          public void process(@Nullable HgCommandResult result)