Error coming on creating new JPA project::: after selecting jpa version 2.1,basic jpa configuration showing error jpa 2.1 requires java 1.5 or newer

Question

Pic of Problem Beginner trying to create JPA project. But when start to create project after selecting jpa version 2.1,basic jpa configuration showing error jpa 2.1 requires java 1.5 or newer. Want to know: #How can i create Project without Error #Difference of version jpa 2.1 and jpa 2. #Diff of Basic Jpa configuration and Custom in Configuration

Answer 1

• To create a JPA project without the error "JPA 2.1 requires Java 1.5 or newer" pick an appropriate "Target runtime" (in the drop down in the same dialog).
• Here is a reasonable explanation of features new to JPA 1.2: http://www.thoughts-on-java.org/jpa-21-overview/
• A "" configuration allows you to configure your new project's facets. Here is an explanation of Eclipse project facets: http://help.eclipse.org/mars/index.jsp?topic=%2Forg.eclipse.jst.j2ee.doc.user%2Ftopics%2Fcfacets.html