× TypeError: Cannot read property 'func' of undefined

[luli-isa]

I try integrate react-d3-map on my react project. I installed package using npm

npm install --save react-d3-map

And import on my React component

var Map = require('react-d3-map').Map;
var PolygonGroup = require('react-d3-map').PolygonGroup;

When I try to use Map components, I have the following error:
× TypeError: Cannot read property 'func' of undefined
(anonymous function)
node_modules/react-d3-map/lib/map.js:139

, {
    key: 'childContextTypes',
    value: {
      geoPath: _react2['default'].PropTypes.func.isRequired,
      projection: _react2['default'].PropTypes.func.isRequired
    },
    enumerable: true

[chrisjbrown]

+1 same

seems to be missing in docs

[aldofunes]

Apparently it has to do with the React version react-d3 is using. A solution may be to use prop-types npm module instead

[jimnoss]

Use the latest 3.x version of react-router (3.2.0). This is working.
npm i react-router@3.2.0