Eclipse does not compile the class file, or it is an error unbound classpath container: ' JRE System Library

Error in problems description Resource Path location Type
Unbound classpath container: ' JRE System Library [jdk1.6.0_21] ' in Project ' Ehms ' ehmsbuild pathbuild Path problem

When it started, it didn't come up. Will report some of the errors that can not be loaded into the class, fortunately, through the Internet to find a solution, so record down.

The error diagram is as follows:




Unbound classpath container: Project ' ABC ' for JRE system library [Jre1.6.0_11]

This means that the JDK version of the project is inconsistent with the JDK versions used by the IDE, resulting in an unbound state

-----------Workarounds-----------------------------------

Right-click on the project, select




Choose







Then choose the problematic JDK, I also have more than one tomcat here, there are unbound in parentheses behind the hints




Watch out, there's plenty of choice.


It's settled, and some have to


If a correct JDK is already present, select Remove.


At last



End

Eclipse does not compile the class file, or it is an error unbound classpath container: ' JRE System Library