Portlight Posted February 23, 2011 Share Posted February 23, 2011 java.lang.UnsupportedClassVersionError: Bad version number in .class fileI did have the 4.0 installed - installed seemlessly.I unistalled jasperserver...reinstalled the older version. Purpose:My employer needs me to test the process for upgrading from 3.7 to 4.0. I need to get 3.7 running first! - any help appreciated. Link to comment Share on other sites More sharing options...
lpeel Posted February 23, 2011 Share Posted February 23, 2011 Here is a link that may help:http://www.coderanch.com/t/292805/JSP/java/Bad-version-number-class-fileI've gotten this before and it has to do with a different version of Java being referenced than the one the code is compiled in. Link to comment Share on other sites More sharing options...
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