Java compiler level does not match the version of the installed Java project facet

Question

I have created a New Dynamic Project under Eclipse Helios Version, where my JRE Version is set to 1.6. I have added Maven capabilities to the Web Application by clicking on

Answer 1

If using eclipse,

Under.settings click on org.eclipse.wst.common.project.facet.core.xml

Change the version to the correct version.