(...)/node_modules/eslint-plugin-react/lib/rules/prop-types.js:421
        for (var k = 0, l = properties.length; k < l; k++) {
                                      ^
TypeError: Cannot read property 'length' of undefined
    at markPropTypesAsUsed ((...)/node_modules/eslint-plugin-react/lib/rules/prop-types.js:421:39)
    at EventEmitter.VariableDeclarator ((...)/node_modules/eslint-plugin-react/lib/rules/prop-types.js:549:7)
    at EventEmitter.emit (events.js:129:20)
    at Controller.controller.traverse.enter ((...)/node_modules/gulp-eslint/node_modules/eslint/lib/eslint.js:728:25)
    at Controller.__execute ((...)/node_modules/gulp-eslint/node_modules/eslint/node_modules/estraverse/estraverse.js:393:31)
    at Controller.traverse ((...)/node_modules/gulp-eslint/node_modules/eslint/node_modules/estraverse/estraverse.js:491:28)
    at EventEmitter.module.exports.api.verify ((...)/node_modules/gulp-eslint/node_modules/eslint/lib/eslint.js:721:24)
    at processText ((...)/node_modules/gulp-eslint/node_modules/eslint/lib/cli-engine.js:201:27)
    at CLIEngine.executeOnText ((...)/node_modules/gulp-eslint/node_modules/eslint/lib/cli-engine.js:361:26)
    at verify ((...)/node_modules/gulp-eslint/index.js:19:17)
    at Transform._transform ((...)/node_modules/gulp-eslint/index.js:37:18)
    at Transform._read (_stream_transform.js:179:10)
    at Transform._write (_stream_transform.js:167:12)
    at doWrite (_stream_writable.js:301:12)
    at writeOrBuffer (_stream_writable.js:288:5)
    at Transform.Writable.write (_stream_writable.js:217:11)
    at write ((...)/node_modules/gulp/node_modules/vinyl-fs/node_modules/through2/node_modules/readable-stream/lib/_stream_readable.js:623:24)
    at flow ((...)/node_modules/gulp/node_modules/vinyl-fs/node_modules/through2/node_modules/readable-stream/lib/_stream_readable.js:632:7)
    at DestroyableTransform.pipeOnReadable ((...)/node_modules/gulp/node_modules/vinyl-fs/node_modules/through2/node_modules/readable-stream/lib/_stream_readable.js:664:5)
    at DestroyableTransform.emit (events.js:104:17)
    at emitReadable_ ((...)/node_modules/gulp/node_modules/vinyl-fs/node_modules/through2/node_modules/readable-stream/lib/_stream_readable.js:448:10)
    at emitReadable ((...)/node_modules/gulp/node_modules/vinyl-fs/node_modules/through2/node_modules/readable-stream/lib/_stream_readable.js:444:5)
    at readableAddChunk ((...)/node_modules/gulp/node_modules/vinyl-fs/node_modules/through2/node_modules/readable-stream/lib/_stream_readable.js:187:9)
    at DestroyableTransform.Readable.push ((...)/node_modules/gulp/node_modules/vinyl-fs/node_modules/through2/node_modules/readable-stream/lib/_stream_readable.js:149:10)
    at DestroyableTransform.Transform.push ((...)/node_modules/gulp/node_modules/vinyl-fs/node_modules/through2/node_modules/readable-stream/lib/_stream_transform.js:145:32)
    at afterTransform ((...)/node_modules/gulp/node_modules/vinyl-fs/node_modules/through2/node_modules/readable-stream/lib/_stream_transform.js:101:12)
    at TransformState.afterTransform ((...)/node_modules/gulp/node_modules/vinyl-fs/node_modules/through2/node_modules/readable-stream/lib/_stream_transform.js:79:12)
    at DestroyableTransform.noop [as _transform] ((...)/node_modules/gulp/node_modules/vinyl-fs/node_modules/through2/through2.js:26:3)
    at DestroyableTransform.Transform._read ((...)/node_modules/gulp/node_modules/vinyl-fs/node_modules/through2/node_modules/readable-stream/lib/_stream_transform.js:184:10)
    at DestroyableTransform.Transform._write ((...)/node_modules/gulp/node_modules/vinyl-fs/node_modules/through2/node_modules/readable-stream/lib/_stream_transform.js:172:12)
    at doWrite ((...)/node_modules/gulp/node_modules/vinyl-fs/node_modules/through2/node_modules/readable-stream/lib/_stream_writable.js:237:10)
    at writeOrBuffer ((...)/node_modules/gulp/node_modules/vinyl-fs/node_modules/through2/node_modules/readable-stream/lib/_stream_writable.js:227:5)
    at DestroyableTransform.Writable.write ((...)/node_modules/gulp/node_modules/vinyl-fs/node_modules/through2/node_modules/readable-stream/lib/_stream_writable.js:194:11)
    at write ((...)/node_modules/gulp/node_modules/vinyl-fs/node_modules/through2/node_modules/readable-stream/lib/_stream_readable.js:623:24)
    at flow ((...)/node_modules/gulp/node_modules/vinyl-fs/node_modules/through2/node_modules/readable-stream/lib/_stream_readable.js:632:7)
    at DestroyableTransform.pipeOnReadable ((...)/node_modules/gulp/node_modules/vinyl-fs/node_modules/through2/node_modules/readable-stream/lib/_stream_readable.js:664:5)
    at DestroyableTransform.emit (events.js:104:17)
    at emitReadable_ ((...)/node_modules/gulp/node_modules/vinyl-fs/node_modules/through2/node_modules/readable-stream/lib/_stream_readable.js:448:10)
    at emitReadable ((...)/node_modules/gulp/node_modules/vinyl-fs/node_modules/through2/node_modules/readable-stream/lib/_stream_readable.js:444:5)
    at readableAddChunk ((...)/node_modules/gulp/node_modules/vinyl-fs/node_modules/through2/node_modules/readable-stream/lib/_stream_readable.js:187:9)
    at DestroyableTransform.Readable.push ((...)/node_modules/gulp/node_modules/vinyl-fs/node_modules/through2/node_modules/readable-stream/lib/_stream_readable.js:149:10)
    at DestroyableTransform.Transform.push ((...)/node_modules/gulp/node_modules/vinyl-fs/node_modules/through2/node_modules/readable-stream/lib/_stream_transform.js:145:32)
    at afterTransform ((...)/node_modules/gulp/node_modules/vinyl-fs/node_modules/through2/node_modules/readable-stream/lib/_stream_transform.js:101:12)
    at TransformState.afterTransform ((...)/node_modules/gulp/node_modules/vinyl-fs/node_modules/through2/node_modules/readable-stream/lib/_stream_transform.js:79:12)
    at (...)/node_modules/gulp/node_modules/vinyl-fs/lib/src/getContents/bufferFile.js:12:5
    at evalmachine.<anonymous>:334:14
    at (...)/node_modules/gulp/node_modules/vinyl-fs/node_modules/graceful-fs/graceful-fs.js:102:5
    at FSReqWrap.oncomplete (evalmachine.<anonymous>:95:15)