Maven項目在Project Facets裏面修改Dynamic web module爲2.5的時候就會出現Cannot change version of project facet Dynamic web module to 2.5
1.首先打開Navigator
1)window--show view--Navigator;
2)修改項目的設置,在Navigator下打開項目.settings目錄下org.eclipse.wst.common.component,標籤 :<project-modules id="moduleCoreId" project-version="1.6.0">(將1.5改成1.6)
3)打開org.eclipse.wst.common.project.facet.core.xml,把 <installed facet="jst.web" version="3.0"/>改成 <installed facet="jst.web" version="2.5"/>,如圖:
2.然後,再看項目的properties,完成修改!