t.column "start_at", :time
This works on my local machine, when I move it
out to RailsPlayground I am getting this error.
I’d recommend you put together a very, very minimal sandbox app and try
on RailsPlayground. By minimal I mean, for example, take out everything
the table except start_at. Have one controller with two methods, one to
display the view for entry of the date, and one to save the result to
database. Have two views, one that allows the entry of that field, if
that’s what your app allows and the other that displays the value that
saved or an appropriate error message. If the problem is still
demonstrable, then document the config of your local machine including
list, plugins, versions of everything, and submit a ticket to your
team. In my experience, you definitely need to have something the
team can work with to get them engaged.
Best of luck,