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POGAE getting started in Java, Eclipse Indigo - can't compile as 1.6
 

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  1. POGAE getting started in Java, Eclipse Indigo - can't compile as 1.6
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    <p>I feel like I keep going in circles with this one. I followed the Getting Started guide for Google App Engine (<a href="https://developers.google.com/appengine/docs/java/gettingstarted/" rel="nofollow noreferrer">https://developers.google.com/appengine/docs/java/gettingstarted/</a>) in Eclipse and everything went relatively well until I uploaded it to the App Engine. </p> <p>I was getting 500 errors so I checked the logs and found this: "guestbook/SignGuestbookServlet : Unsupported major.minor version 51.0]"</p> <p>I then search for this problem (on stackoverflow, of course) and found this solution: <a href="https://stackoverflow.com/questions/8139477/google-app-engine-and-java-version">Google App Engine and Java Version?</a></p> <p>So I set the compliance level to 1.6 and then at the bottom of the dialog I get the warning that "When selecting 1.6 compliance, make sure to have a compatible JRE installed and activated (currently 1.7)".</p> <p>I happy click OK, and it prompts for a rebuild. After the rebuild I then get this new error: "Java compiler level does not match the version of the installed Java project facet."</p> <p>Not having knowingly used any facets in the project I do a search for some help (again on stackoverflow) and find this: <a href="https://stackoverflow.com/questions/2239959/faceted-project-prblem-java-version-mismatch-error-message">&quot;Faceted Project Prblem (Java Version Mismatch)&quot; error message</a></p> <p>Unfortunately it is not even close to being helpful because I am not used Maven, and when I bring up the properties of the project there is no Project Properties -> Project Facets panel for me to change a version on.</p> <p>So it seems that I am stuck with something that either cannot be compiled in Eclipse or cannot be deployed to App Engine. I know that I am probably missing something obvious here but I can't quite put my finger on it.</p> <p>UPDATE: I have uninstalled all JREs and JDKs, and reinstalled only jdk1.6.0_32. The problem continues exactly the same.</p>
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    1. USNicholas Green
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    1. COTry installing JDK6 and running Eclipse under it.
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      1. USPeter Knego
    2. COHi @peter, I just tried running eclipse using the -vm jdk1.6.0_31 in the INI file (previously was jdk1.7.0_04) and it didn't make any difference
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