Could not determine a MetaTable

For me, it turns out that in my grid view, the columns were bound as an “asp:DynamicField”, not as a “asp:BoundField”

ie

changing my columns from something like so:

<Columns>
  <asp:DynamicField DataField="Id" HeaderText="Id" />
</Columns>

to this:

<Columns>
  <asp:BoundField DataField="Id" HeaderText="Id" />
</Columns>

fixed it 😉