Updated eclipse.ini file with key value property -Dosgi.requiredJavaVersion=1.7 (or) 1.8 whichever applicable. - it works for me.


Updated eclipse.ini file with key-value property




because, that is my JAVA version.

Also, selected JRE 1.8 as my project library


Have you actually downloaded and installed one of the milestone builds from ?

You can have a play with the features, though it's not stable so you shouldn't be releasing software against them.


Most of the time after the installation of Eclipse eclipse.ini is changed. If you change the jdk in eclipse.ini then eclipse will use this jdk by default.

Let's say you install a new version of Eclipse and you have forgotten to change the eclipse.ini related to the jdk. Then Eclipse finds a jdk for you. Let's say it is java 1.6 that was automatically discovered (you did nothing).

If you use maven (M2E) and you reference a 1.7 jdk then you will see the frustrating message. But normally it is not displayed because you configure the correct jdk in eclipse.ini.

That was my case. I made reference into the pom to a jdk that was not configured into Eclipse.

In the screenshot you can see that 1.7 is configured and seen by Eclipse. In this case, you should make reference into the pom to a jre that is compatible with 1.7! If not -> frustrating message!

jdk 1.7 configured in eclipse.ini and retrieved in installed jre


Cause : This is common scenario when we import new project with different lib and JAR path.

I faced this issue and got resolved using exact following steps:

  • Project > Properties
  • Build Path > Configure Build Path
  • Select "Libraries" tab
  • Click "Add Library"
  • Select "JRE System Library" from displayed list
  • Click on "Next" followed by "Finish" button

This will point your system's proper & valid JRE path, which did thing for me. Cheers :)


1)Go to configure build path . 2)Remove unbound JRE library . 3)Add library --> JRE System library .

Then project compile and done ..


To set JDK you can watch this video : how to set JDK . Then when you'll have JDK:

  1. Right click on build path and select "Build Path"
  2. Choose "Configure Build Path"
  3. Click on "JRE System Library [JavaSE-1.7] (unbound)"
  4. Edit it
  5. Choose "Alternate JRE"
  6. Click on "Installed JREs.." button
  7. Press Add
  8. Choose to add "Standard VM"
  9. Choose JRE Home directory - usually it is locates in "C:\Program Files\Java\jre7" directory
  10. Press "Finish"
  11. Re-check newly appeared "Jre7": Verify that now when you edit "JRE System Library [JavaSE-1.7]" "Alternate JRE" is chosen for jre7.


1) Find out where java is installed on your drive, open a cmd prompt, go to that location and run ".\java -version" to find out the exact version. Or, quite simply, check the add/remove module in the control panel.

2) After you actually install jdk 7, you need to tell Eclipse about it. Window -> Preferences -> Java -> Installed JREs.

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