异常描述
appium的Github上已经有人提了类似的问题
给的建议是勾选prelaunch application
https://github.com/appium/appium/issues/2341#issuecomment-40477596
建议用appium-desktop,因为这版已经不维护了,感觉新版更好用一点
https://github.com/appium/appium/issues/8282#issuecomment-295196989
附上appium-desktop下载地址
https://github.com/appium/appium-desktop/releases