Exception坑——2

本文介绍了解决Eclipse中创建使用Dynamic Web Module 3.1支持项目时出现的错误提示“需要Java 1.7或更高版本”的方法。通过调整项目配置、设置Java版本及修改pom.xml文件等方式可以有效解决此问题。

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How to solve “Dynamic Web Module 3.1 requires Java 1.7 or newer” in Eclipse

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Dynamic Web Module 3.1 requires Java 1.7

Have you noticed above type of error in your Eclipse? When you’re creating a project with Dynamic Web Module 3.1 support, you should be using Java 1.7 or newer. Please follow below steps to resolve it.

Step1:

Make sure your Java Project is configured probably to use Java 1.7.

Right click your project > Properties > Java Compiler and set “Compiler compliance level” to 1.7

Eclipse - Java Compiler Settings

Step2:

Java Build Path. Click “Edit“. And change it to “Java 7”

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Eclipse Java Version Setting

Eclipse - JRE System Library Settings

Step3:

Next from the menu on the left select Project Facets > Java and set its version to 1.7

Eclipse - Project Facets Settings

Extra Tips:

If you have maven project try adding below code to pom.xml file.

Alternate Solution:
  1. Another way is to edit the project facet configuration file itself: org.eclipse.wst.common.project.facet.core.xml
  2. Change the dynamic web module version in this line to 3.1 – <installed facet="jst.web" version="3.0"/>
  3. And then Maven -> Update Project. You’ll find this file in the .settings directory within the Eclipse project.
Getting below error also?

Cannot change version of project facet Dynamic Web Module to 3.0. Follow this tutorial: http://crunchify.com/how-to-fix-cannot-change-version-of-project-facet-dynamic-web-module-to-3-0-error-in-eclipse/

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