Cannot read property 'node' of undefined
In the react v-16>
103 | }(_react.Component); 104 | 105 | Mailto.propTypes = {
106 | children: _react.PropTypes.node.isRequired, 107 | email: _react.PropTypes.string.isRequired, 108 | headers: _react.PropTypes.object, 109 | obfuscate: _react.PropTypes.bool
shows the error
Exact same issue in gatsbyjs (Gatsby CLI 2.12) !
A hint definitely would help us a lot!
Regards
Having same issue in Next.js!
I think it's related to the React version that this package uses ("react": "^15.2.1" from this package's package.json file)
From React docs:

Please what is the solution to this?