1、Uncaught TypeError: Cannot read property ‘dom’ of null
原因:如果代码段没有放入Ext.onReady中
2、Uncaught
TypeError: Cannot call method 'hasOwnProperty' of undefined
参考这篇文章:Extjs4---Uncaught
TypeError: Cannot call method 'hasOwnProperty' of undefined
3、Cannot
read property 'addCls' of null
参考文章:Extjs4---Cannot
read property 'addCls' of null
4、Uncaught
TypeError: Cannot call method 'substring' of undefined
参考文章:Extjs4---Uncaught
TypeError: Cannot call method 'substring' of undefined
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androidx+viewpage+tablayout+json开发(加载图片和视频)
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