JDeveloper and tutorial Installation and problem

Hi, I'm currently said with Jdeveloper, and I am following the tutorial at http://docs.Oracle.com/CD/E37547_01/tutorials/tut_ide/tut_ide.html . When I get down at the bottom of this tutorial, it asks me to take a JSF page and drag it on the screen. Name page1.jspx and click Preview in the background; However, when I do that, I get an error: NoClassDefFoundError in org.netbeans.modules.netbinox.NetbinoxLoader:97 I tried to install Jdeveloper on three different machines, and I will still meet this issue. I think that I am ignorant something in the installation. Someone at - he no clue as to what a solution might be?

I feel embarrassed. I finally realized that the use of Java jdk 8 +. He gave me the question. I switched to Java 7 and it works perfectly now.

Tags: Java

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