ayc868,
Sorry that you are seeing this issue. We couldn’t replicate the issue at our end.
Can you please answer some more queries to help us investigate further :
1) Can you please make sure that you are debugging the web application ? (Right click on the web application and select Debug As > MyEclipse Server Application)
2) Can you please share the link of the Spring MVC tutorial you are following and also mention the line number and the file at which you have added a breakpoint ?
3) Can you also clarify on which application server you are trying to run/debug ?
4) Clear the contents of the .log file located at <workspace dir>/.metadata/.log file, replicate the issue and attach the log file, if there are any errors of interest.
5) Also share the MyEclipse Installation Details from MyEclipse > Installation Summary > Installation Details.