Validating a report gives the error:
RSV-VAL-0010 Failed to load the report specification. CCL_ASSERT_NAMED(m_bAllRowsOptimization == FALSE, "The master dataset cannot be re-used for a second iterator if AllRows optimization was applied when the query was executed.");
Resolving the problem
Make sure that all page objects in the report have a query assigned to them and its not left blank.