在 flutter 中设置 firebase 实时数据库后出现错误

Question

执行此链接中的步骤后出现以下错误

Error: MissingPluginException(No implementation found for method DatabaseReference#set on channel
plugins.flutter.io/firebase_database)
    at Object.throw_ [as throw] (http://localhost:42421/dart_sdk.js:5063:11)
    at MethodChannel._invokeMethod
    (http://localhost:42421/packages/flutter/src/services/restoration.dart.lib.js:1555:21)
    at _invokeMethod.next (<anonymous>)
    at http://localhost:42421/dart_sdk.js:40192:33
    at _RootZone.runUnary (http://localhost:42421/dart_sdk.js:40062:59)
    at _FutureListener.thenAwait.handleValue (http://localhost:42421/dart_sdk.js:34983:29)
    at handleValueCallback (http://localhost:42421/dart_sdk.js:35551:49)
    at Function._propagateToListeners (http://localhost:42421/dart_sdk.js:35589:17)
    at _Future.new.[_completeWithValue] (http://localhost:42421/dart_sdk.js:35437:23)
    at async._AsyncCallbackEntry.new.callback (http://localhost:42421/dart_sdk.js:35458:35)
    at Object._microtaskLoop (http://localhost:42421/dart_sdk.js:40330:13)
    at _startMicrotaskLoop (http://localhost:42421/dart_sdk.js:40336:13)
    at http://localhost:42421/dart_sdk.js:35811:9

一些资源建议执行以下步骤...但这对我不起作用

flutter clean
flutter packages get

注意：我只在 web 上收到此错误。 在 android 中，它工作正常。