I just upgraded to Eclipse 3.1 (RC2) and installed Flashout 0.2.0.7 but was unable to set the preferences for Flashout. The following error occurred when I clicked the Flashout option in the Preferences window:
Unable to create the selected preference page.
Reason: Plugin com.potapenko.flashout was unable to load class com.potapenko.flashout.preferences.PreferencesRoot
After checking the log files from Eclipse (workspace->.metadata->.log) I found out that the following seemed to be the root error:
java.lang.UnsupportedClassVersionError: com/potapenko/flashout/FlashoutPlugin (Unsupported major.minor version 49.0)
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
The result of a Google search pointed out that I might be using the wrong java version and indeed, that was it. Make sure you’re using Java 1.5.
To know what Java version you’re using, open a command prompt and type:
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