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Eclipse is running under 0, but this Java project has a 9 Java [message #1786251]

Fri, 27 April 2018 17:06

Christian Eugster

Messages: 214
Registered: July 2009
Location: St. Gallen Switzerland

Senior Member

Hi
i installed today the current version of windowbuilder in oxygen 4.7.3a running on java 9 on a mac. I had no problem with the Installation but when I create e.g. e4 ViewPart (or others) the file is created but on the design tab in windowbuilder there is a message saying:

Eclipse is running under 0, but this Java project has a 10 Java compliance level, so WindowBuilder will not be able to load classes from this project. Use a lower level of Java for the project, or run Eclipse using a newer Java version.

I then tried with other versions of java but the message stays the same (except naming the project java version). I tried to find out, where that ominous version 0 in the message comes from but had no luck. Is there anybody that has a hint how to solve this problem? I googled too and searched this forum, but did not find an answer.
Thank you
Christian

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Re: Eclipse is running under 0, but this Java project has a 9 Java [message #1790406 is a reply to message #1786251]

Sat, 09 June 2018 17:43

Manish Kumar

Messages: 1
Registered: June 2018

Junior Member

Even i am facing the same issue can some once please suggest..

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Re: Eclipse is running under 0, but this Java project has a 9 Java [message #1790490 is a reply to message #1790406]

Mon, 11 June 2018 16:57

Avi Abrami

Messages: 31
Registered: December 2017

Member

I'm not guaranteeing that this will solve your problem, but try removing all JDK versions from your machine and installing only JDK 1.8
Then try running WindowBuilder.

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Re: Eclipse is running under 0, but this Java project has a 9 Java [message #1792230 is a reply to message #1790490]

Fri, 13 July 2018 02:10

B O

Messages: 1
Registered: July 2018

Junior Member

I was able to fix this same issue by changing the project i was unable to display in window builder from JavaSE-9 to JavaSE-1.8.

I didn't have to install or uninstall anything.
Hope this helps someone.

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