Cannot change version of project facet Dynamic Web Module to 3.0?

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Another way is to edit the project facet configuration file itself: org.eclipse.wst.common.project.facet.core.xml

Change the dynamic web module version in this line to 3.0 – <installed facet="jst.web" version="2.5"/>

And then:

  1. Right-click on the project (in the Project Explorer panel).
  2. Select Maven ยป Update Project (or press Alt+F5)

You’ll find this file in the .settings directory within the Eclipse project.

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