Importing an application in apex 4.0.1.00.03 fails

I recently upgraded my apex from 3.2 to 4.0.1.00.03
I exported an application from 4.0.1.00.03 and now trying to Import the same export file in apex 4.0.1.00.03.
But the import fails with error:
The requested URL /pls/apex_dev/wwv_flow.accept was not found on this server.
The error log file on the app server has the following information.
"POST /pls/apex_dev/wwv_flow.accept HTTP/1.1" 404 234
I did not have any problems importing before upgrading to apex 4.
Here is the DAD
<Location /pls/apex_dev>
SetHandler pls_handler
Order deny,allow
Allow from all
AllowOverride None
PlsqlDatabaseUsername APEX_PUBLIC_USER
PlsqlDatabasePassword @abc
PlsqlDatabaseConnectString devdb:1521:test.abc.us ServiceNameFormat
PlsqlDefaultPage apex
PlsqlDocumentTablename wwv_flow_file_objects$
PlsqlDocumentPath docs
PlsqlDocumentProcedure wwv_flow_file_manager.process_download
PlsqlAuthenticationMode Basic
PlsqlNLSLanguage AMERICAN_AMERICA.AL32UTF8
</Location>
Thanks
Chandra.

Thanks Patrick
--Chandra.

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We contacted Oracle Support and their answer is below:
===================
Yes you can import the Application that is created in Apex 2.0 to Apex 3.2
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How to Upgrade / Migrate from APEX 2.2.0.00.32 to 3.1.2 (Doc ID 578630.1)
After Export / Import Of Workspace, There Are No Applications (Doc ID 358858.1)
ORA-942 When Importing Applications or Workspaces in APEX (Doc ID 1333062.1)
===================
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