DHIS1.3 to 1.4 conversion error!

Hi,

I have a task to convert DHIS1.3 databse to 1.4. Using upgrade option provided by 1.4 gives the following error and deletes any created files and exits:
"The Microsoft Office Access database engine could not find the object 'survey'. Make sure the object exists and that you spelled its name and path name correctly"
Any ideas?

regards,
murod