/path/to/project/node_modules/eslint-plugin-react/lib/rules/prop-types.js:51 for (var i = 0, j = property.value.properties.length; i < j; i++) { ^ TypeError: Cannot read property 'length' of undefined at /path/to/project/node_modules/eslint-plugin-react/lib/rules/prop-types.js:51:54 at Array.forEach (native) at EventEmitter.ObjectExpression (/path/to/project/node_modules/eslint-plugin-react/lib/rules/prop-types.js:46:23) at EventEmitter.emit (events.js:117:20) at Controller.controller.traverse.enter (/path/to/project/node_modules/eslint/lib/eslint.js:683:25) at Controller.__execute (/path/to/project/node_modules/eslint/node_modules/estraverse/estraverse.js:397:31) at Controller.traverse (/path/to/project/node_modules/eslint/node_modules/estraverse/estraverse.js:495:28) at EventEmitter.module.exports.api.verify (/path/to/project/node_modules/eslint/lib/eslint.js:676:24) at processFile (/path/to/project/node_modules/eslint/lib/cli-engine.js:172:23) at /path/to/project/node_modules/eslint/lib/cli-engine.js:271:26 at /path/to/project/node_modules/eslint/lib/util/traverse.js:61:17