An indexer is not assigned to the Shared Services Provider 'SharedServices1'.

This comes up so infrequently that I don't always remember the solution. So this time I'm posting. :)

An indexer is not assigned to the Shared Services Provider 'SharedServices1'.Configure an indexer and a search database for this Shared Services Provider

Fix:
1) Open Central Admin
2) Click "Shared Services Administration" link on the left navigation bar
3) Click the drop-down of your SSP and click "Edit Properties"
4) Specify the Indexer from drop down and enter password and click OK.