datatable报错， Cannot read property 'style' of undefined

Question

用datatable渲染表格的时候报错：
all.mini.js?v=v1.0:19 Uncaught TypeError: Cannot read property 'style' of undefined

at _fnCalculateColumnWidths (all.mini.js?v=v1.0:19)
at _fnInitialise (all.mini.js?v=v1.0:19)
at HTMLTableElement.<anonymous> (all.mini.js?v=v1.0:19)
at Function.each (jquery.min.js?v=v1.0:2)
at n.fn.init.each (jquery.min.js?v=v1.0:2)
at n.fn.init.DataTable [as dataTable] (all.mini.js?v=v1.0:19)
at n.fn.init.$.fn.DataTable (all.mini.js?v=v1.0:19)
at Object.dataTables (common.js?v=v1.0:655)
at Object.pp.teach.stucomevalmaintain.formInit (eval at globalEval (jquery.min.js?v=v1.0:2), <anonymous>:648:8)
at Object.success (eval at globalEval (jquery.min.js?v=v1.0:2), <anonymous>:612:34)

Answer 1

前后 columns 列没对上。

Answer 2

表头和列没对上