总是提示错误信息：
cannot open connection to localhost - No such file or directory
Make sure the remote host supports the LPD protocol
and accepts connections from this host and from non-privileged (>1023)
ports
我的命令行是：
a2ps -P walrus（打印机名） ./aaa.c(文件名）
请问哪位知道该如何解决这个问题？多谢了先！
