ReferenceError: window is not defined
at D:\project\team\管理平台\node_modules\videojs-resolution-switcher\lib\videojs-resolution-switcher.js:11:3
at Object. (D:\project\team\管理平台\node_modules\videojs-resolution-switcher\lib\videojs-resolution-switcher.js:358:3)
at Module._compile (module.js:652:30)
at Object.Module._extensions..js (module.js:663:10)
at Module.load (module.js:565:32)
at tryModuleLoad (module.js:505:12)
at Function.Module._load (module.js:497:3)
at Module.require (module.js:596:17)
at require (internal/module.js:11:18)
at Object.videojs-resolution-switcher/lib/videojs-resolution-switcher (webpack:/external "videojs-resolution-switcher/lib/videojs-resolution-switcher":1:0)
at webpack_require__ (webpack:/webpack/bootstrap 9b3d4a4c995d53a2c1fd:21:0)
at Object../components/classRoom_ctrl/classRoom.js (D:\project\team\管理平台.next\dist\bundles\pages\classRoom.js:104:118)
at webpack_require (webpack:/webpack/bootstrap 9b3d4a4c995d53a2c1fd:21:0)
at Object../pages/classRoom.js (D:\project\team\管理平台.next\dist\bundles\pages\classRoom.js:1455:95)
at webpack_require__ (webpack:/webpack/bootstrap 9b3d4a4c995d53a2c1fd:21:0)
at Object.3 (D:\project\team\管理平台.next\dist\bundles\pages\classRoom.js:1681:18)
i import this in Next.js , have error:window is not defined.