The beginning of the “Use the Component” section instructs readers:
Alias the component in SurveyLive by adding this line to the top your module: alias __MODULE__.Component
It doesn’t say which file to put this in, though. I thought it was supposed to go in ../survey_live/component.ex because that was the file I was just working in. A little confusion that could be avoided by saying to put it in ..live/survey_live.ex.