idea2019启动tomcat9.0报错“Application Server was not connected before run configuration stop, reason:”

——“java.io.IOException: Failed to retrieve RMIServer stub: javax.naming.CommunicationException [Root exception is java.rmi.ConnectIOException: error during JRMP connection establishment; nested exception is: java.net.SocketException: Connection reset]”

问题原因：idea版本和tomcat版本不兼容

解决方案：tomcat版本用8.0