PropTypes.shape with error

[learning]

I have something like this

import React, { PropTypes } from 'react';

function Summary({index, day }) {
  return (
    <li>
      <h3>{index + 1}</h3>
      <p>{day.todos.map(todo => todo.title).join(',')}</p>
    </li>
  );
}

Summary.propTypes = {
  index: PropTypes.number,
  day: PropTypes.shape({
    todos: PropTypes.arrayOf(PropTypes.shape({
      title: PropTypes.string,
    })),
  }),
};

when I run lint, I got this error.

**:**  error  'day.todos' PropType is defined but prop is never used            react/no-unused-prop-types
**:**  error  'day.todos.*.title' PropType is defined but prop is never used    react/no-unused-prop-types

[zerkms]

Relevant (or a duplicate?): #816

[EvHaus]

The no-unused-prop-types rule does not support shape props at the moment as such detection is very difficult. If you use shape props, I recommend setting the skipShapeProps option to true on the rule.

Duplicate of #819. Will track further discussion of shape props there.