Symptom
Error 'Invalid Database Version, this version of Controller requires database version: 710' when launching Controller
 
Problem
User launches Controller. User receives error message.  
   
Cause
The database version will vary, depending on which version of Controller is installed on the application server.
The Controller application repository database's schema version does not match the version that the Controller client is compatible with.

Different Controller versions have different 'DB Versions' associated with them.

For example:
Controller 8.3 RTM <=> database (schema) version 710
Controller 8.3 service pack 5 <=> 711
Controller 8.4 RTM <=> 737

You cannot launch the Controller client if the database version does not match the version of the software you are running.

For the complete list of Controller software and database versions see article "Cognos Controller database schema versions" 
 
Solution
Scenario #1 - If the version of the *database* is less than the version of the application software
Either:
use 'DbConv' to upgrade the database to the higher version
TIP: This process is non-reversible. Once you have upgraded the database, you cannot use the database on a system which has a lower version of Controller software installed
For more information, see IBM Technote #1346294.
or downgrade the version of Controller software installed on the application server, to the same version which matches the database

Scenario #2 - If the version of the *database* is more than the version of the application software or upgrade the version of Controller software installed on the application server, to the same version which matches the database.

Scenario #3 - If the version of the *database* is the same as the version of the application software
In this case, you are mistakenly trying to use a version of the client (for example Controller 8.3 client) which is different from the version running on the Controller application server (for example version 8.4).
Upgrade your client device to have the later version of the Controller client installed.
 

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