Product:
Cognos Controller 8.5.1 service pack

Problem:
After upgrade to a new version of Cognos Controller you get a error when you run Database Conversion Utility to upgrade the database to the latest version.

You get message:
Current dbversion.txt missing – unable to proceed with conversion.

Solution:
Ensure that the DBCONV.EXE program is in the C8 folder, where the needed support files are located.

Copy the DBCONV.EXE program to the C8 folder – if it is not located in this folder.

A reinstall of Cognos Controller would also place the files in correct folders.