Version of Ext in use not compatible with GWT-Ext.

When I ran my GWT application in hosted mode, I kept getting the following error:

Version of Ext in use not compatible with GWT-Ext.
GWT-Ext only supports Ext v.2.0.2.


I was already using EXT 2.0.2 (from http://yogurtearl.com/ext-2.0.2.zip) on GWT-EXT 2.0.6 (http://gwt-ext.com/download/) and I put the ext-all.css, ext-all.js and ext-base.js files into a local js folder so that my html file could access them using this:

< ! --include the Ext CSS -- >
< link rel="stylesheet" type="text/css" href="js/ext/ext-all.css"/ >

< !--include the Ext Core API-- >
< script type="text/javascript" src="js/ext/adapter/ext/ext-base.js" >< / script >


< !--include Ext -- >
< script type="text/javascript" src="js/ext/ext-all.js" >< / script >


The way I solved this was to clear my IE browser cache. In Windows, the hosted mode uses IE.