s@ubuntu:~/catkin_ws$ rosrun learning_communication client


[ INFO] [1636351352.862343507]: usage: add_two_ints_client X Y


s@ubuntu:~/catkin_ws$ rosrun learning_communication DoDishes_client


terminate called after throwing an instance of 'ros::InvalidNameException'
  what():  Character [ ] at element [2] is not valid in Graph Resource Name [do dishes client].  Valid c
haracters are a-z, A-Z, 0-9, / and _.
已放弃 (核心已转储)

代码如上,一行输入一行输出  最后那个报错实在不知道哪里有问题