Red check box whilst developing my page - challenge 205

Hi all, I’m doing challenge 205 to develop an  app  however I’ve got a red “check” box and not sure how to proceed, as I can’t preview. Any assistance would be appreciated it.
1 answers

The error you've showed there says “No entity configured for the data source of this list view”. You will want to click the list view in question and then select the entity it should be showing (on the right side of the screen under “properties”, that should solve the error completely.