The port is occupied because the service is not shut down normally

npm run dev When opening project effects , The following error reports are found , This is a reminder that 30005 Port occupied , The solution is as follows ：

1. open cmd Command window , Input  netstat -ano  command ( Query all );
 

 2. Enter... On the command line  netstat -ano|findstr 30005 command , Available at this time 30005 The port corresponds to TCP Information , as follows , TCP Number is 7400;

 3. stay cmd Input  taskkill /f /t /im  And corresponding TCP Number , To turn off the occupied port ; It can be used normally at this time npm run dev visit 30005  port ;