43 | 

  44 | export default class App extends React.PureComponent {

> 45 |   static propTypes = {

     |   ^

  46 |     content: PropTypes.string.isRequired,

  47 |     ast: PropTypes.object.isRequired

  48 |   }

    at File.buildCodeFrameError (/home/travis/build/Project-OSRM/osrm-backend/node_modules/babel-core/lib/transformation/file/index.js:427:15)

    at NodePath.buildCodeFrameError (/home/travis/build/Project-OSRM/osrm-backend/node_modules/babel-traverse/lib/path/index.js:140:26)

    at pushBody (/home/travis/build/Project-OSRM/osrm-backend/node_modules/babel-plugin-transform-es2015-classes/lib/vanilla.js:262:20)

    at buildBody (/home/travis/build/Project-OSRM/osrm-backend/node_modules/babel-plugin-transform-es2015-classes/lib/vanilla.js:229:10)

    at run (/home/travis/build/Project-OSRM/osrm-backend/node_modules/babel-plugin-transform-es2015-classes/lib/vanilla.js:143:10)

    at PluginPass.ClassExpression (/home/travis/build/Project-OSRM/osrm-backend/node_modules/babel-plugin-transform-es2015-classes/lib/index.js:48:60)

    at newFn (/home/travis/build/Project-OSRM/osrm-backend/node_modules/babel-traverse/lib/visitors.js:276:21)

    at NodePath._call (/home/travis/build/Project-OSRM/osrm-backend/node_modules/babel-traverse/lib/path/context.js:76:18)

    at NodePath.call (/home/travis/build/Project-OSRM/osrm-backend/node_modules/babel-traverse/lib/path/context.js:48:17)

    at NodePath.visit (/home/travis/build/Project-OSRM/osrm-backend/node_modules/babel-traverse/lib/path/context.js:105:12)

SyntaxError: src/components/app.js: Missing class properties transform.

  43 | 

  44 | export default class App extends React.PureComponent {

> 45 |   static propTypes = {

     |   ^

  46 |     content: PropTypes.string.isRequired,

  47 |     ast: PropTypes.object.isRequired

  48 |   }