设置了 Appium 配置，然后运行 Appium，运行 Inpector，但是跑不起来，报错了。
错误信息是：
info: [debug] Error: Command failed: ADB server didn't ACK

• could not start server *

  at ChildProcess.exithandler (child_process.js:658:15)
  at ChildProcess.emit (events.js:98:17)
  at maybeClose (child_process.js:766:16)
  at Socket. (child_process.js:979:11)
  at Socket.emit (events.js:95:17)
  at Pipe.close (net.js:466:12)
  info: [debug] Responding to client with error: {"status":33,"value":{"message":"A new session could not be created. (Original error: Command failed: ADB server didn't ACK\n* could not start server \n)","killed":false,"code":255,"signal":null,"origValue":"Command failed: ADB server didn't ACK\n could not start server *\n"},"sessionId":null}
  info: <-- POST /wd/hub/session 500 17166.155 ms - 296

这个是什么问题呢？