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@@ -43,7 +43,29 @@ When downloading and using CSSEmbed, you can download one of two files:
  
 @cssembed-core-x.y.z.jar@ contains just CSSEmbed and so you'll need to add the dependencies manually to the classpath. There are two dependencies:
 * "Jargs 1.0":http://jargs.sourceforge.net/ (@jargs-1.0.jar@)
-* "DataURI 0.1.1":http://github.com/nzakas/datauri/downloads (@datauri-0.1.1.jar@)
+* "DataURI 0.2.0":http://github.com/nzakas/datauri/downloads (@datauri-0.2.0.jar@)
+
+h1. Troubleshooting
+
+h2. I get a  java.lang.UnsupportedClassVersionError message
+
+You may get encounter an error such as this:
+
+bc.. 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)
+
+p. This means that you're attempting to run CSSEmbed on an earlier version of the JVM. CSSEmbed requires Java 1.5 to execute. 
 
 h1. Copyright and License