Installed RocketLauncher, but the Gantry framework was not there, so I installed the Gantry framework bundle. Now I get this error when the site loads.
Fatal error: Class 'JSimpleXML' not found in /home/other16/public_html/vdiv/components/com_gantry/core/gantrytemplatedetails.class.php on line 39
We used rt_crystalline_j1.5-rocketlauncher.zip. The install went perfect. The only difference on this install was not installing sample data. As a result, we ended up with a file with a 000000 permission and the error posted. We fixed the (strange and unusual) permission problem but couldn't track down the Gantry error.
Solution: We uninstalled the Gantry framework component and the Gantry cache plug-in, then re-installed the Gantry framework 3.,03. That did the trick. Everything is fine now. But a mystery as to cause.