We are aware of an issue with Solver, caused by the initialization of Power Query and Power Pivot. We are working on a fix for this issue urgently. In the meantime, you might be able to get unblocked with
the following workaround:
1)
Make sure Excel is not running
2)
Start Excel
3)
Open the “Blank workbook” template
4)
Launch Solver (click the Solver button in the Data tab in the Ribbon)
5)
'Set Objective:' will be the active cell by default
6)
Set the range in 'By Changing Variable Cells: to the same string as is in 'Set Objective:'
7)
Click the “Solve” button
8)
Close the Solver Results dialog
9)
Open any other worksheet or workbook (do not close empty workbook first)
Hope this helps!
Freya
Office Newsroom