TFS 2008 to TFS 2010 Report Migration Notes

1. SSAS 2008 doesn't support "-" anymore.
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everal Team Foundation pre-upgrade reports, and specifically the Scenario Details and Unplanned Work reports, show one of the following errors when run on SQL Server 2008:

The set must have a single hierarchy to be used with the complement operator.

The above messages appear because the WHERE clause in the report query is using a minus or complement operator (-) to exclude a specific attribute from the query. For example, the Scenario Details report includes a WHERE clause with the following syntax:
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More details at:
http://msdn.microsoft.com/en-us/library/ff452590.aspx#REMComplement