Argument Error Text - Read PDF Text

I am not getting use the activity Read PDF Text, I think it´s because the option: Add the variable extractedText in the Text field, that I saw on the Uipath’s site, when I put something, it shows Argument Error, for anything I use.

Hi,

Can you share your error message (or screenshot)?
Basically, we need to set string type variable in the Text property, as the following.

Regards,