Please provide an operation name! Graphql/examples/todo + react-native apollo

```
const TODO_LIST_QUERY = gql` query todolist{ todoList{id,text,done}}`;

type Todo = {
id: string;
text: string;
done: boolean;
};
type Response = {
todoList: Todo;
}

const todoQuery = graphql<{}, Response>(TODO_LIST_QUERY, {});

class TodoList extends Component, {}> {
render() {
const { loading, todoList, error } = this.props.data;
if (loading) return Loading;
if (error) return {JSON.stringify(error)};
if (!todoList) return no data;
return (

{JSON.stringify(this.props)}

this.openItem(item)}
onLongPress={() => this.alertMenu(item)} />
}
keyExtractor={(item, index) => index.toString()}
style={styles.flatList} />

)
}
}

export default todoQuery(TodoList);
```
url: http://167.99.64.4:8080/graphql (You may use this)
It print error "Please provide an operation name". What happen to it?