After installing licensed Smart GWT 2.1 Pro SDK we still get expired pop-up

Smart GWT Technical Q&A
1

We recently licensed Smart GWT Pro. After downloading the installation zip, replacing our previous Smart GWT files with its contents and re-compiling, we still get the warning message that says “This copy of Isomorphic SmartClient is expired. See http://www.isomorphic.com for renewal”.

Is there something else we need to do to remove this message? Thanks!
Edit/Delete Message

2

This could indicate either the need to clear cache or incompletely followed installation steps - see the step by step instructions for adding to an existing project (linked in the FAQ).