The Invalid Screen error is issued in the following situations:

Unset the Cache in Minutes property of the screen or block that has the input parameter of the Binary Data, Record, or Record List data type.

Edit this screen and change the Variable property of one of the widgets.

Delete the widget from the screen and then re-create it again.

Clicking the symbol will take you directly to the element where this situation was detected.

See Also

About Caching Contents | About Error Messages