Regarding the create method in the backbone collection, ask for help!

  node.js, question
app.Todos.create( this.newAttributes() );

The above code successfully inserted a data model into Todos collection, but it always reported

backbone-min.js:16 Uncaught TypeError: a.parse is not a function

This error, I would like to ask what is going on, although the create to add will not report an error, but add will not store the data model in locaStorage, how to solve it?

this.newAttributes()What is it printed out