firebase - 当我为 flutter web 添加 firebase 时，我的应用程序将无法运行

Question

我正在顺利运行我的应用程序。当我添加 firebase: ^7.2.1 以支持 Flutter Web 时。为 Web 构建工作正常，但为 Android 构建总是失败。

我的依赖项。

  flutter_timer: ^0.0.6
  http: any
  intl: ^0.16.1
  firebase: ^7.2.1 ```

---------------------------

These are Console message:



Launching lib/main.dart on SM G920L in debug mode...
Running Gradle task 'assembleDebug'...
Invalid depfile: /Users/mac/Developer/Flutter/FlutterProjects/podio/.dart_tool/flutter_build/c4534ac7f6d60d954ed69c0226286dfd/kernel_snapshot.d
Invalid depfile: /Users/mac/Developer/Flutter/FlutterProjects/podio/.dart_tool/flutter_build/c4534ac7f6d60d954ed69c0226286dfd/kernel_snapshot.d

Compiler message:
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/top_level.dart:1:8: Error: Not found: 'dart:html'
import 'dart:html';
       ^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/js-0.6.1+1/lib/js.dart:8:1: Error: Not found: 'dart:js'
export 'dart:js' show allowInterop, allowInteropCaptureThis;
^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/js-0.6.1+1/lib/js_util.dart:8:1: Error: Not found: 'dart:js_util'
export 'dart:js_util';
^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/auth.dart:306:25: Error: The method 'allowInterop' isn't defined for the class 'Auth'.
 - 'Auth' is from 'package:firebase/src/auth.dart' ('../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/auth.dart').
Try correcting the name to the name of an existing method, or defining a method named 'allowInterop'.
      var nextWrapper = allowInterop((firebase_interop.UserJsImpl user) {
                        ^^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/auth.dart:310:26: Error: The method 'allowInterop' isn't defined for the class 'Auth'.
 - 'Auth' is from 'package:firebase/src/auth.dart' ('../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/auth.dart').
Try correcting the name to the name of an existing method, or defining a method named 'allowInterop'.
      var errorWrapper = allowInterop((e) => _changeController.addError(e));
                         ^^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/auth.dart:340:25: Error: The method 'allowInterop' isn't defined for the class 'Auth'.
 - 'Auth' is from 'package:firebase/src/auth.dart' ('../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/auth.dart').
Try correcting the name to the name of an existing method, or defining a method named 'allowInterop'.
      var nextWrapper = allowInterop((firebase_interop.UserJsImpl user) {
                        ^^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/auth.dart:345:11: Error: The method 'allowInterop' isn't defined for the class 'Auth'.
 - 'Auth' is from 'package:firebase/src/auth.dart' ('../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/auth.dart').
Try correcting the name to the name of an existing method, or defining a method named 'allowInterop'.
          allowInterop((e) => _idTokenChangedController.addError(e));
          ^^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/database.dart:164:9: Error: The method 'allowInterop' isn't defined for the class 'DatabaseReference<T>'.
 - 'DatabaseReference' is from 'package:firebase/src/database.dart' ('../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/database.dart').
Try correcting the name to the name of an existing method, or defining a method named 'allowInterop'.
        allowInterop((update) => jsify(transactionUpdate(dartify(update))));
        ^^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/database.dart:166:26: Error: The method 'allowInterop' isn't defined for the class 'DatabaseReference<T>'.
 - 'DatabaseReference' is from 'package:firebase/src/database.dart' ('../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/database.dart').
Try correcting the name to the name of an existing method, or defining a method named 'allowInterop'.
    var onCompleteWrap = allowInterop(
                         ^^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/database.dart:301:24: Error: The method 'allowInterop' isn't defined for the class 'Query<T>'.
 - 'Query' is from 'package:firebase/src/database.dart' ('../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/database.dart').
Try correcting the name to the name of an existing method, or defining a method named 'allowInterop'.
    var callbackWrap = allowInterop((database_interop.DataSnapshotJsImpl data,
                       ^^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/database.dart:325:30: Error: The method 'allowInterop' isn't defined for the class 'Query<T>'.
 - 'Query' is from 'package:firebase/src/database.dart' ('../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/database.dart').
Try correcting the name to the name of an existing method, or defining a method named 'allowInterop'.
    jsObject.once(eventType, allowInterop(
                             ^^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/database.dart:402:22: Error: The method 'allowInterop' isn't defined for the class 'DataSnapshot'.
 - 'DataSnapshot' is from 'package:firebase/src/database.dart' ('../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/database.dart').
Try correcting the name to the name of an existing method, or defining a method named 'allowInterop'.
    var actionWrap = allowInterop((d) => action(DataSnapshot.getInstance(d)));
                     ^^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/messaging.dart:72:27: Error: The method 'allowInterop' isn't defined for the class 'Messaging'.
 - 'Messaging' is from 'package:firebase/src/messaging.dart' ('../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/messaging.dart').
Try correcting the name to the name of an existing method, or defining a method named 'allowInterop'.
      final nextWrapper = allowInterop((payload) {
                          ^^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/messaging.dart:75:28: Error: The method 'allowInterop' isn't defined for the class 'Messaging'.
 - 'Messaging' is from 'package:firebase/src/messaging.dart' ('../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/messaging.dart').
Try correcting the name to the name of an existing method, or defining a method named 'allowInterop'.
      final errorWrapper = allowInterop((e) {
                           ^^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/messaging.dart:87:27: Error: The method 'allowInterop' isn't defined for the class 'Messaging'.
 - 'Messaging' is from 'package:firebase/src/messaging.dart' ('../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/messaging.dart').
Try correcting the name to the name of an existing method, or defining a method named 'allowInterop'.
      final nextWrapper = allowInterop((payload) {
                          ^^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/messaging.dart:97:27: Error: The method 'allowInterop' isn't defined for the class 'Messaging'.
 - 'Messaging' is from 'package:firebase/src/messaging.dart' ('../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/messaging.dart').
Try correcting the name to the name of an existing method, or defining a method named 'allowInterop'.
      final nextWrapper = allowInterop((_) => null);
                          ^^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/messaging.dart:98:28: Error: The method 'allowInterop' isn't defined for the class 'Messaging'.
 - 'Messaging' is from 'package:firebase/src/messaging.dart' ('../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/messaging.dart').
Try correcting the name to the name of an existing method, or defining a method named 'allowInterop'.
      final errorWrapper = allowInterop((e) {
                           ^^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/storage.dart:317:11: Error: The method 'allowInterop' isn't defined for the class 'UploadTask'.
 - 'UploadTask' is from 'package:firebase/src/storage.dart' ('../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/storage.dart').
Try correcting the name to the name of an existing method, or defining a method named 'allowInterop'.
          allowInterop((storage_interop.UploadTaskSnapshotJsImpl data) {
          ^^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/storage.dart:321:26: Error: The method 'allowInterop' isn't defined for the class 'UploadTask'.
 - 'UploadTask' is from 'package:firebase/src/storage.dart' ('../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/storage.dart').
Try correcting the name to the name of an existing method, or defining a method named 'allowInterop'.
      var errorWrapper = allowInterop((e) => _changeController.addError(e));
                         ^^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/storage.dart:322:26: Error: The method 'allowInterop' isn't defined for the class 'UploadTask'.
 - 'UploadTask' is from 'package:firebase/src/storage.dart' ('../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/storage.dart').
Try correcting the name to the name of an existing method, or defining a method named 'allowInterop'.
      var onCompletion = allowInterop(() => _changeController.close());
                         ^^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/top_level.dart:194:7: Error: Method not found: 'hasProperty'.
  if (js.hasProperty(error, 'message')) {
      ^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/top_level.dart:195:19: Error: Method not found: 'getProperty'.
    var message = js.getProperty(error, 'message');
                  ^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/utils.dart:29:7: Error: Method not found: 'hasProperty'.
  if (util.hasProperty(jsObject, 'firestore') &&
      ^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/utils.dart:30:7: Error: Method not found: 'hasProperty'.
      util.hasProperty(jsObject, 'id') &&
      ^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/utils.dart:31:7: Error: Method not found: 'hasProperty'.
      util.hasProperty(jsObject, 'parent')) {
      ^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/utils.dart:37:7: Error: Method not found: 'hasProperty'.
  if (util.hasProperty(jsObject, 'latitude') &&
      ^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/utils.dart:38:7: Error: Method not found: 'hasProperty'.
      util.hasProperty(jsObject, 'longitude') &&
      ^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/utils.dart:44:15: Error: Method not found: 'getProperty'.
  var proto = util.getProperty(jsObject, '__proto__');
              ^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/utils.dart:46:7: Error: Method not found: 'hasProperty'.
  if (util.hasProperty(proto, 'toDate') &&
      ^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/utils.dart:47:7: Error: Method not found: 'hasProperty'.
      util.hasProperty(proto, 'toMillis')) {
      ^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/utils.dart:52:7: Error: Method not found: 'hasProperty'.
  if (util.hasProperty(proto, 'isEqual') &&
      ^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/utils.dart:53:7: Error: Method not found: 'hasProperty'.
      util.hasProperty(proto, 'toBase64')) {
      ^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/utils.dart:67:24: Error: Method not found: 'getProperty'.
    map[key] = dartify(util.getProperty(jsObject, key));
                       ^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/utils.dart:91:17: Error: Method not found: 'newObject'.
    var jsMap = util.newObject();
                ^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/utils.dart:93:7: Error: Method not found: 'setProperty'.
      util.setProperty(jsMap, key, jsify(value));
      ^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/utils.dart:116:12: Error: Method not found: 'allowInterop'.
    return allowInterop(dartObject);
           ^^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/utils.dart:124:5: Error: Method not found: 'callMethod'.
    util.callMethod(jsObject, method, args);
    ^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/utils.dart:139:19: Error: Method not found: 'promiseToFuture'.
    value = await util.promiseToFuture(thenable);
                  ^^^^^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/utils.dart:141:9: Error: Method not found: 'hasProperty'.
    if (util.hasProperty(e, 'code')) {
        ^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/utils.dart:152:27: Error: Method not found: 'allowInterop'.
  return PromiseJsImpl<S>(allowInterop((
                          ^^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/utils.dart:165:5: Error: Method not found: 'allowInterop'.
    allowInterop(c.completeError);
    ^^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/utils.dart:173:22: Error: Method not found: 'getProperty'.
  String get code => util.getProperty(_source, 'code');
                     ^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/utils.dart:176:25: Error: Method not found: 'getProperty'.
  String get message => util.getProperty(_source, 'message');
                        ^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/utils.dart:179:22: Error: Method not found: 'getProperty'.
  String get name => util.getProperty(_source, 'name');
                     ^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/utils.dart:182:32: Error: Method not found: 'getProperty'.
  Object get serverResponse => util.getProperty(_source, 'serverResponse');
                               ^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/utils.dart:185:23: Error: Method not found: 'getProperty'.
  String get stack => util.getProperty(_source, 'stack');
                      ^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/firestore.dart:105:30: Error: The method 'allowInterop' isn't defined for the class 'Firestore'.
 - 'Firestore' is from 'package:firebase/src/firestore.dart' ('../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/firestore.dart').
Try correcting the name to the name of an existing method, or defining a method named 'allowInterop'.
    var updateFunctionWrap = allowInterop((transaction) =>
                             ^^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/firestore.dart:306:11: Error: The method 'allowInterop' isn't defined for the class 'DocumentReference'.
 - 'DocumentReference' is from 'package:firebase/src/firestore.dart' ('../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/firestore.dart').
Try correcting the name to the name of an existing method, or defining a method named 'allowInterop'.
          allowInterop((firestore_interop.DocumentSnapshotJsImpl snapshot) {
          ^^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/firestore.dart:310:26: Error: The method 'allowInterop' isn't defined for the class 'DocumentReference'.
 - 'DocumentReference' is from 'package:firebase/src/firestore.dart' ('../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/firestore.dart').
Try correcting the name to the name of an existing method, or defining a method named 'allowInterop'.
      var errorWrapper = allowInterop((e) => controller.addError(e));
                         ^^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/firestore.dart:445:9: Error: The method 'allowInterop' isn't defined for the class 'Query<T>'.
 - 'Query' is from 'package:firebase/src/firestore.dart' ('../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/firestore.dart').
Try correcting the name to the name of an existing method, or defining a method named 'allowInterop'.
        allowInterop((firestore_interop.QuerySnapshotJsImpl snapshot) {
        ^^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/firestore.dart:449:24: Error: The method 'allowInterop' isn't defined for the class 'Query<T>'.
 - 'Query' is from 'package:firebase/src/firestore.dart' ('../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/firestore.dart').
Try correcting the name to the name of an existing method, or defining a method named 'allowInterop'.
    var errorWrapper = allowInterop((e) => controller.addError(e));
                       ^^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/firestore.dart:775:9: Error: The method 'allowInterop' isn't defined for the class 'QuerySnapshot'.
 - 'QuerySnapshot' is from 'package:firebase/src/firestore.dart' ('../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/firestore.dart').
Try correcting the name to the name of an existing method, or defining a method named 'allowInterop'.
        allowInterop((s) => callback(DocumentSnapshot.getInstance(s)));
        ^^^^^^^^^^^^
../../SDK/flutter/.pub-cache/hosted/pub.dartlang.org/firebase-7.2.1/lib/src/interop/js_interop.dart:17:7: Error: Method not found: 'hasProperty'.
  if (util.hasProperty(jsObject, 'toDateString')) {
      ^^^^^^^^^^^
../../SDK/flutter/packages/flutter/lib/src/painting/_network_image_web.dart:64:12: Error: Method not found: 'webOnlyInstantiateImageCodecFromUrl'.
    return ui.webOnlyInstantiateImageCodecFromUrl(resolved) as Future<ui.Codec>; // ignore: undefined_function
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Unhandled exception:
FileSystemException(uri=org-dartlang-untranslatable-uri:dart%3Ahtml; message=StandardFileSystem only supports file:* and data:* URIs)
#0      StandardFileSystem.entityForUri (package:front_end/src/api_prototype/standard_file_system.dart:33:7)
#1      asFileUri (package:vm/kernel_front_end.dart:604:37)
#2      writeDepfile (package:vm/kernel_front_end.dart:799:21)
<asynchronous suspension>
#3      FrontendCompiler.compile (package:frontend_server/frontend_server.dart:474:15)
<asynchronous suspension>
#4      _FlutterFrontendCompiler.compile (package:flutter_frontend_server/server.dart:38:22)
#5      starter (package:flutter_frontend_server/server.dart:149:27)
#6      main (file:///b/s/w/ir/cache/builder/src/flutter/flutter_frontend_server/bin/starter.dart:8:30)
#7      _startIsolate.<anonymous closure> (dart:isolate-patch/isolate_patch.dart:299:32)
#8      _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:168:12)

Target kernel_snapshot failed: Exception: Errors during snapshot creation: null
build failed.

FAILURE: Build failed with an exception.

* Where:
Script '/Users/mac/Developer/Flutter/SDK/flutter/packages/flutter_tools/gradle/flutter.gradle' line: 801

* What went wrong:
Execution failed for task ':app:compileFlutterBuildDebug'.
> Process 'command '/Users/mac/Developer/Flutter/SDK/flutter/bin/flutter'' finished with non-zero exit value 1

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 32s
Finished with error: Gradle task assembleDebug failed with exit code 1

当我在 flutter 中添加 web 东西之前运行代码时。它在 Android 中运行良好。但是当我在 flutter 中添加 web 的 firebase 时。它在 Android 上停止工作，但在 Web 上工作正常。

Answer 1

我发现@davidmcharo 的回答非常有帮助，但我想提供更新。

1) Firebase 有一些软件包可以通过单一代码库同时支持移动和网络，但实时数据库不是。 (正如@Dazza5000 所说。)我建议改为使用 cloud_firestore。

2) 现在这些包同时支持移动和网络，您不需要将 firebase 依赖项添加到您的 pubspec.yaml 中。这种依赖性是导致您上述问题的原因。但是，如果您之前依赖于它，则在将其从 pubspec.yaml 中删除后简单地运行 pub get 将无法消除此错误。您必须导航到 @davidmcharo 上面描述的路径 (flutter/.pub-cache/hosted/pub.dartlang.org/) 并使用他的说明删除 firebase-7.3.0 文件夹。执行此操作后，您的移动应用程序应该会运行。

3) 有一些文章详细介绍了如何使用 firebase 构建 Web 和移动跨平台应用程序，但它们很快就会过时。我能够在不使用 kIsWeb 全局指定 firebase 包的情况下让我的应用程序运行。

另一个注意事项:我遇到的一个问题是我可以让我的移动应用程序正常运行，但我的网络应用程序仍然存在问题，直到我从我的应用程序中删除实时数据库。我不小心在树中留下了一个访问我的旧实时数据库的 StreamProvider，它阻止了网络应用程序的正常运行。当您从 RTB 转换为 Cloud Firestore 时，请注意任何挥之不去的实时数据库调用。