Extjs, Uncaught TypeError: Cannot read property 'dom' of null

Uncaught TypeError: Cannot read property 'dom' of null

查了一下，原来表格定义中一个xtype写错了：

{ 	header: "日期1", 	dataIndex: "value1", 	menuDisabled: true, 	sortable: true, 	align: 'left', 	xtype:'date' }

正确的应该是datefield

文章来源: Extjs, Uncaught TypeError: Cannot read property 'dom' of null