virtual site import error

Hi

 

*         [org.jahia.bin.JahiaAdministration] ERROR - Error during sites
operation of a new element we must flush all caches to ensure integrity
between database and viewing
java.lang.NullPointerException...................

*         [org.jahia.services.cache.CacheFactory]  INFO - Flushed all
caches.........................

   [org.jahia.tools.files.FileUpload] ERROR - Error while initializing
FileUpload class:

   java.io.IOException: Corrupt form data: premature
ending.........................

*         [org.jahia.params.ParamBean] ERROR - Cannot parse multipart
data !

   java.io.IOException: Corrupt form data: premature
ending......................

 

I am getting above errors in jahia logs while trying to import a virtual
site. I have successfully exported a virtual site and trying to import
the same exported site (file in the form of zip) to another server but I
am getting above errors.

 

Could you please tell me the possible reasons?

 

Thanks

 

Vivek