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POJava error: Bad version number in .class file error when trying to run Cassandra on OS X
 

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  1. POJava error: Bad version number in .class file error when trying to run Cassandra on OS X
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    <p>I am trying to get Cassandra to work on OS X. When I run <code>bin/cassandra</code>, I get the following error:</p> <pre><code>~/apache-cassandra-incubating-0.4.1-src &gt; bin/cassandra -f Listening for transport dt_socket at address: 8888 Exception in thread "main" java.lang.UnsupportedClassVersionError: Bad version number in .class file at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:675) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124) at java.net.URLClassLoader.defineClass(URLClassLoader.java:260) at java.net.URLClassLoader.access$100(URLClassLoader.java:56) at java.net.URLClassLoader$1.run(URLClassLoader.java:195) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:316) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:280) at java.lang.ClassLoader.loadClass(ClassLoader.java:251) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:374) </code></pre> <p>From what I could determine by searching, this error is related to incompatible versions of Java. However, as far as I can tell, I have the latest version of Java:</p> <pre><code> ~/apache-cassandra-incubating-0.4.1-src &gt; java -version java version "1.6.0_13" Java(TM) SE Runtime Environment (build 1.6.0_13-b03-211) Java HotSpot(TM) 64-Bit Server VM (build 11.3-b02-83, mixed mode) ~/apache-cassandra-incubating-0.4.1-src &gt; javac -version javac 1.6.0_13 ~/Downloads/apache-cassandra-incubating-0.4.1-src &gt; echo $JAVA_HOME /System/Library/Frameworks/JavaVM.framework/Versions/1.6/Home </code></pre> <p>Any ideas on what I'm doing wrong?</p>
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    1. USSam Lee
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      1. USRichard Metzler
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    1. COlocate wheress cassandra is storing class files, clean it and do a build, this should solve the problem IMO
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      1. USNarayan
 

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