Upgrading from K2 Five to 5.1 fails with a number of errors being highlighted within the configuration analysis. These errors are also highlighted within the K2 set up trace log.

You can access the trace log via the following directory: Program Files (x86) > K2 Blackpearl > Set up > Logs


The following errors are displayed:

Script execute failed:

System.Exception: Script execution exception: Microsoft.SqlServer.Management.Common.ExecutionFailureException: An exception occurred while executing a Transact-SQL statement or batch. ---> System.Data.SqlClient.SqlException: The CREATE UNIQUE INDEX statement terminated because a duplicate key was found for the object name 'Authorization.Object' and the index name 'UX_Authorization_Object_ClassID_Hash_IsClassObject'.

The duplicate key value is (64b0b584-8c45-4cce-839e-8daaa2ae16d8, 0x3c602a1c2455f7219a1abd46d8e66f980e6cad7949d93f0ed30de2f7a9854261, 0).


This issue has been resolved by applying the latest 5.1 installer which can be found on