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                            /React.JS
                        
                        /React實(shí)戰(zhàn)--打造畫廊應(yīng)用（上）

并沒有出現(xiàn)圖片啊！

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)