title: IzPack Error 2 - "the file version is different from the compiler version"
body: <p>According to IzPack, this is categorized as a CompilerException.</p>
  
  <p>My install.xml file is:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="iso-8859-1" standalone="yes"?&gt;
  &lt;installation version="2.0"&gt;
      &lt;info&gt;
          &lt;appname&gt;Time Sheets Manager&lt;/appname&gt;
          &lt;appversion&gt;2.0&lt;/appversion&gt;
          &lt;authors&gt;
              &lt;author email="erbrown@ymail.com" name="Elliot Brown"/&gt;
              &lt;author email="" name="Denes Lengyel"/&gt;
          &lt;/authors&gt;
          &lt;url&gt;http://dbs.ca&lt;/url&gt;
          &lt;uninstaller name="timesheet_uninstall.jar" write="yes"/&gt;
          &lt;javaversion&gt;1.7&lt;/javaversion&gt;
          &lt;requiresjdk&gt;no&lt;/requiresjdk&gt;
          &lt;writeinstallationinformation&gt;yes&lt;/writeinstallationinformation&gt;
          &lt;pack200/&gt;
          &lt;run-privileged condition="izpack.windowsinstall.vista|izpack.windowsinstall.7"/&gt;
      &lt;/info&gt;
      &lt;guiprefs height="480" resizable="no" width="640"&gt;
          &lt;modifier key="useFlags" value="no"/&gt;
          &lt;modifier key="langDisplayType" value="default"/&gt;
      &lt;/guiprefs&gt;
      &lt;locale&gt;
          &lt;langpack iso3="eng"/&gt;
      &lt;/locale&gt;
      &lt;panels&gt;
          &lt;panel classname="CheckedHelloPanel"/&gt;
          &lt;panel classname="InstallSelection"/&gt;
          &lt;panel classname="SimpleFinishPanel"/&gt;
      &lt;/panels&gt;
  &lt;/installation&gt;
  </code></pre>
  
  <p>I use the following command to generate the error:</p>
  
  <pre><code>compile.bat install.xml -o install.jar -k standard
  </code></pre>
  
  <p>The following is the actual output of the exception:</p>
  
  <pre><code>IZPACK_HOME is "C:\Program Files\IzPack\bin\.."
  
  .::  IzPack - Version 5.0.0-beta11 ::.
  
  &lt; compiler specifications version: 5.0 &gt;
  
  - Copyright (c) 2001-2010 Julien Ponge and others. All Rights Reserved.
  - Visit http://izpack.org/ for the latest releases
  - Released under the terms of the Apache Software License version 2.0.
  
  -&gt; Processing  : install.xml
  -&gt; Output      : install.jar
  -&gt; Base path   : .
  -&gt; Kind        : standard
  -&gt; Compression : default
  -&gt; Compr. level: -1
  -&gt; IzPack home : C:\Program Files\IzPack\bin\..
  
  May 16, 2013 5:55:04 PM com.izforge.izpack.core.container.PlatformProvider provi
  de
  INFO: Detected platform: windows,version=6.2,arch=x64,symbolicName=WINDOWS_8,jav
  aVersion=1.7.0_15
  -&gt; Fatal error :
     install.xml:2: the file version is different from the compiler version
  com.izforge.izpack.api.exception.CompilerException: install.xml:2: the file vers
  ion is different from the compiler version
          at com.izforge.izpack.compiler.helper.AssertionHelper.parseError(Asserti
  onHelper.java:61)
          at com.izforge.izpack.compiler.resource.ResourceFinder.getXMLTree(Resour
  ceFinder.java:188)
          at com.izforge.izpack.compiler.CompilerConfig.executeCompiler(CompilerCo
  nfig.java:295)
          at com.izforge.izpack.compiler.bootstrap.CompilerLauncher.main(CompilerL
  auncher.java:52)
  
  (tip : use -? to get the commmand line parameters)
  </code></pre>
  
  <p>This is my first time using IzPack and it's mission critical that I get this working. Any help would be greatly appreciated.</p>
  
  <p>I should also mention that the "InstallSelection" in the panel section is one I designed myself in Netbeans. Even without it defined in the panel section, I still get the error.</p>