npm start 报错

Question

npm start 报错
提示：

$ npm start

Starting the development server...

Failed to compile.

./src/routes/orders/AllPaidOrderListPage.js
Module build failed: TypeError: Property right of AssignmentExpression expected node to be of a type ["Expression"] but instead got null
at Array.map (<anonymous>)

这是什么问题，怎么解决？
各位老铁帮忙看看~_~