Uncaught TypeError: Cannot read property 'imgsArrangeArr' of null
    at AppComponent.eval (eval at <anonymous> (http://localhost:8000/assets/app.js:2401:2), <anonymous>:223:24)
    at Array.forEach (native)
    at AppComponent.render (eval at <anonymous> (http://localhost:8000/assets/app.js:2401:2), <anonymous>:221:18)
    at AppComponent.eval (eval at <anonymous> (http://localhost:8000/assets/app.js:1081:2), <anonymous>:15:37)
    at eval (eval at <anonymous> (http://localhost:8000/assets/app.js:1567:2), <anonymous>:796:21)
    at measureLifeCyclePerf (eval at <anonymous> (http://localhost:8000/assets/app.js:1567:2), <anonymous>:75:12)
    at ReactCompositeComponentWrapper._renderValidatedComponentWithoutOwnerOrContext (eval at <anonymous> (http://localhost:8000/assets/app.js:1567:2), <anonymous>:795:25)
    at ReactCompositeComponentWrapper._renderValidatedComponent (eval at <anonymous> (http://localhost:8000/assets/app.js:1567:2), <anonymous>:822:32)
    at ReactCompositeComponentWrapper.performInitialMount (eval at <anonymous> (http://localhost:8000/assets/app.js:1567:2), <anonymous>:362:30)
    at ReactCompositeComponentWrapper.mountComponent (eval at <anonymous> (http://localhost:8000/assets/app.js:1567:2), <anonymous>:258:21)