CVS加tag出错，IO错误

failed due to an internal error (took 2:25.875)
   Error: I/O has been interrupted.
      Error: The most likely cause of the interrupt is either an intermittent network failure or a communications timeout.
      Error: The CVS communications timeout can be adjusted in the Team/CVS preferences.
      Error: Another possible cause is the improper configuration of the "ext" connection method.
      Error: The "ext" connection method can be configured on the Team/CVS/EXT Connection Method preference page

解决办法：

增加widows->preference->team->cvs中的超时，增加到了200秒

将连接改为pserver

如果仍然出错，继续加大超时试试。