未捕获的TypeError：导入@ material-ui / pickers时，Object（...）不是函数

我使用"@material-ui/core": "^3.9.3"与"@material-ui/pickers": "^3.0.0-beta.1"

当我从中导入任何内容时，@material-ui/pickers都会得到：

Uncaught TypeError: Object(...) is not a function
at Module../node_modules/@material-ui/pickers/dist/material-ui-pickers.esm.js (material-ui-pickers.esm.js:25)
at __webpack_require__ (bootstrap:781)
at fn (bootstrap:149)
at Module../src/views/Event/Create.js (User.js:18)
at __webpack_require__ (bootstrap:781)
at fn (bootstrap:149)
at Module../src/Routes.js (Routes.js:1)
at __webpack_require__ (bootstrap:781)
at fn (bootstrap:149)
at Module../src/layouts/Admin.jsx (index.js:73)
at __webpack_require__ (bootstrap:781)
at fn (bootstrap:149)
at Module../src/index.js (index.css?02e3:45)
at __webpack_require__ (bootstrap:781)
at fn (bootstrap:149)
at Object.0 (Notifications.jsx:300)
at __webpack_require__ (bootstrap:781)
at checkDeferredModules (bootstrap:45)
at Array.webpackJsonpCallback [as push] (bootstrap:32)
at main.chunk.js:1