getcolumntype() function in model.php script giving problem

The site that I worked on is working very fine on the test server. I downloaded the same copy and u开发者_如何学Goploaded onto the new server (live). I changed the database.php in app/config folder to set the db connection variables. And I get this following error when I try to open the link.

Cannot access empty property in {serverinformation}/cake/libs/model/model.php on line 1002

I am not able to find any help on this anywhere. Can somebody help me please. I need to get the site live... and I am not sure what could be the problem and where to debug for it.

Is that the only error message?

Check file permissions on the live server.

Try clearing your cache files - all files in and below app/tmp/cache, but leave the directories themselves intact.