[news.eclipse.newcomer] The selected wizard could not be started

[szubiri@xxxxxxxxx (Sole)]

Hi! I have built a wizard in Eclipse 3.2, it works fine when I launch it 
as an Eclipse Application. 
Then I exported using the Export wizard and when I want to use it 
(File--New--My Wizard), I get this mesagge:

The selected wizard could not be started: Reason, Plug-in com.xyz.wizards 
was unable to load class com.xyz.wizards.EvalMethodWizard.

Here goes the build.properties

src.includes = source/,\
              plugin.xml,\
              icons/,\
              build.properties,\
              .project,\
              .classpath

bin.includes = plugin.xml,\
              .,\
              lib/commons-collections-3.1.jar,\
              lib/commons-io-1.1.jar,\
              lib/commons-logging-1.0.3.jar,\
              lib/jlfgr-1_0.jar,\
              lib/log4j-1.2.8.jar,\
              lib/velocity-1.4.jar,\
              lib/xstream-1.1.2.jar,\
              lib/xstream-1.1.2-java5.jar,\
              lib/org.eclipse.swt.win32.win32.x86_3.2.1.v3235.jar,\
              lib/org.eclipse.ui.forms_3.1.0.jar,\
              META-INF/,\
              icons/,\
              conf/,\
              build.properties,\
              .project,\
              .classpath
jars.compile.order = 


Can anybody help me? 

Thanks, Sole.