Failed assertion: line 1916 pos 14: 'children != null': is not true.
It sounds like you are passing a null value to a [] list. try out that solution . for example you have:
就是你传了一个空的Widget给children
Failed assertion: line 1916 pos 14: 'children != null': is not true.
It sounds like you are passing a null value to a [] list. try out that solution . for example you have:
就是你传了一个空的Widget给children
