Model object names must be non-empty error message

[agiga]

Hi,

First time user working with an excel file.  I'm making changes to the query as I clean-up the data for reporting and am getting the message "Model object names must be non-empty" when applying my query changes.

Some of the changes I have made include:

- Changing null values to zero

- Removing rows

- Merging columns

- Transposing data

Thank you!