"Error! Not all fields required by index are selected for conversion" - Indexes can be converted only with corresponding fields. This error message implies that fields required for particular indexes are unchecked. Look at the right panel where Index options are shown. Check necessary fields if you want them to be converted with the indexes.
Example: Clicking at "PrimaryKey" index you get the message: "Error! Not all fields required by index are selected for conversion". Look at "Fields" list control. The fields named "OrderID" and "ProductID" are required for the index. Now make sure that these fields are checked for conversion. As we can see "OrderID" field is unchecked.
If you check the checkbox in front of "OrderID" field the error message will be moved away.
