How to get rid of this error message "no method named Column in class edu.mit.appinventor"

[Anke]

This guide is / should be obsolte with the last update (nb183c):

Newbie here...need a little help invoke: no method named `Column' in class edu.mit.appinventor

We have released nb183c, which will remove the errant Column and Row properties from Screens if they are present.