'Undefined ref' issues in quickstart

[PeteKnight]

You should follow these steps…

SubNewbie...need help with my first attempt at using Blynk

The two are totally unconnected. I’m really struggling to understand what you’re doing, and whether you’re doing this from the web console or from the app. I find that it’s easier to do it from the web console, as you can then copy/paste the quickstart sketch straight into your Arduino IDE. I’d recommend that you delete all the existing templates and devices in the web console, and check that they have also been deleted from the app. Then, do this… in the web console, click the the “life…

Pete.