The reason is that the nodes in temp\conf\server.xml are configured with many items that have been removed; you need to do the following:
1. Delete the useless node in temp\conf\server.xml;
1. When tomcat deletes a project, it displays an error that the project does not exist
Delete the deleted load item node configured in server.xml
2. Double-click startup.bat to enter the URL and a cat appears, but eclipse starts toncat and displays a 404 error
