Unable to open debugger port in IntelliJ IDEA

Question

I have a problem that I can not set up my application in debug mode with IntelliJ IDE, but run mode is OK.

My OS is Windows 7, IDE is IntelliJ IDEA, web container is Tom

Answer 1

I had this exact message.

The reason was that some IDE (I use Eclipse and Intellij) failed to shutdown the tomcat server. Or maybe crashed before it could do so.

The solution was to navigate to C:\...\apache-tomcat-xxx\bin and run shutdown.