How to use TinyDB?

When I was using my Tiny DB storage ,I don’t know why I cannot use my app.
Is there any thing wrong?

The problem is that your TinyDb is returning an empty space and trying to put that as the listview items because the tag you are asking for doesn’t exist. Instead of an empty space you should get an empty list.

Thanks. :smiley:
There is problem. How to deal with the problem?
PS watch the video.

Try this:

Thanks a lot.

I can’t use the add button because I use your code , do you know how to deal with this problem?

There is no reason to change anything: