No fields selected; check the preselection

What causes this issue?

You selected either <LS>Transfer</> or <LS>Show choice</>.
The <LS>Transfer</> function copies to the screen all the field texts
(key words) and input/output fields (templates) which you selected (by
pressing the radio button on the left edge of the list).
The <LS>Show choice</> function displays the field texts and
input/output fields you have chosen.
You have not yet selected anything.

System Response

No effect.

How to fix this error?

If necessary, select <LS>Dict./program fields</> again and choose the
fields you want to copy to the screen.
Check that your preselection acutally allows you to make a choice. If
you have set the preselection "Template: No" and also "Key word: None",
no selection is possible. In this case, you can only view the field
descriptions from the ABAP/4 Dictionary.

Error message extract from SAP system. Copyright SAP SE.