Build Failed Due To Event Stream Not Being Defined

[RonitBanerjee]

Platform (use [x]) [] Web

Hi team, my flutter app is failing to build bacause of an error with the version of the plugins.

../../../../.pub-cache/hosted/pub.dev/web_socket_channel-2.4.2/lib/src/web_helpers.dart:10:32: Error: The getter 'EventStreamProviders' isn't defined for the class 'WebSocket'.

'WebSocket' is from 'package:web/src/dom/websockets.dart' ('../../../../.pub-cache/hosted/pub.dev/web-0.3.0/lib/src/dom/websockets.dart'). Stream get onOpenX => EventStreamProviders.openEvent.forTarget(this); ^^^^^^^^^^^^^^^^^^^^ ../../../../.pub-cache/hosted/pub.dev/web_socket_channel-2.4.2/lib/src/web_helpers.dart:12:7: Error: The getter 'EventStreamProviders' isn't defined for the class 'WebSocket'. 'WebSocket' is from 'package:web/src/dom/websockets.dart' ('../../../../.pub-cache/hosted/pub.dev/web-0.3.0/lib/src/dom/websockets.dart'). EventStreamProviders.messageEvent.forTarget(this); ^^^^^^^^^^^^^^^^^^^^ ../../../../.pub-cache/hosted/pub.dev/web_socket_channel-2.4.2/lib/src/web_helpers.dart:14:7: Error: The getter 'EventStreamProviders' isn't defined for the class 'WebSocket'. 'WebSocket' is from 'package:web/src/dom/websockets.dart' ('../../../../.pub-cache/hosted/pub.dev/web-0.3.0/lib/src/dom/websockets.dart'). EventStreamProviders.closeEvent.forTarget(this); ^^^^^^^^^^^^^^^^^^^^ ../../../../.pub-cache/hosted/pub.dev/web_socket_channel-2.4.2/lib/src/web_helpers.dart:16:7: Error: The getter 'EventStreamProviders' isn't defined for the class 'WebSocket'. 'WebSocket' is from 'package:web/src/dom/websockets.dart' ('../../../../.pub-cache/hosted/pub.dev/web-0.3.0/lib/src/dom/websockets.dart'). EventStreamProviders.errorEventSourceEvent.forTarget(this); ^^^^^^^^^^^^^^^^^^^^ Error: Compilation failed. Command: /home/rnp/snap/flutter/common/flutter/bin/cache/dart-sdk/bin/dart --disable-dart-dev /home/rnp/snap/flutter/common/flutter/bin/cache/dart-sdk/bin/snapshots/dart2js.dart.snapshot --platform-binaries=/home/rnp/snap/flutter/common/flutter/bin/cache/flutter_web_sdk/kernel --invoker=flutter_tool -Ddart.vm.product=true -DFLUTTER_WEB_AUTO_DETECT=true -DFLUTTER_WEB_CANVASKIT_URL=https://www.gstatic.com/flutter-canvaskit/22b600f240548c1cf6f5d3f9ae65a5c9e51bc443/ --native-null-assertions --no-source-maps -o

Steps to Reproduce: flutter build web

Logs: ../../../../.pub-cache/hosted/pub.dev/web_socket_channel-2.4.2/lib/src/web_helpers.dart:10:32: Error: The getter 'EventStreamProviders' isn't defined for the class 'WebSocket'.

'WebSocket' is from 'package:web/src/dom/websockets.dart' ('../../../../.pub-cache/hosted/pub.dev/web-0.3.0/lib/src/dom/websockets.dart'). Stream get onOpenX => EventStreamProviders.openEvent.forTarget(this); ^^^^^^^^^^^^^^^^^^^^ ../../../../.pub-cache/hosted/pub.dev/web_socket_channel-2.4.2/lib/src/web_helpers.dart:12:7: Error: The getter 'EventStreamProviders' isn't defined for the class 'WebSocket'. 'WebSocket' is from 'package:web/src/dom/websockets.dart' ('../../../../.pub-cache/hosted/pub.dev/web-0.3.0/lib/src/dom/websockets.dart'). EventStreamProviders.messageEvent.forTarget(this); ^^^^^^^^^^^^^^^^^^^^ ../../../../.pub-cache/hosted/pub.dev/web_socket_channel-2.4.2/lib/src/web_helpers.dart:14:7: Error: The getter 'EventStreamProviders' isn't defined for the class 'WebSocket'. 'WebSocket' is from 'package:web/src/dom/websockets.dart' ('../../../../.pub-cache/hosted/pub.dev/web-0.3.0/lib/src/dom/websockets.dart'). EventStreamProviders.closeEvent.forTarget(this); ^^^^^^^^^^^^^^^^^^^^ ../../../../.pub-cache/hosted/pub.dev/web_socket_channel-2.4.2/lib/src/web_helpers.dart:16:7: Error: The getter 'EventStreamProviders' isn't defined for the class 'WebSocket'. 'WebSocket' is from 'package:web/src/dom/websockets.dart' ('../../../../.pub-cache/hosted/pub.dev/web-0.3.0/lib/src/dom/websockets.dart'). EventStreamProviders.errorEventSourceEvent.forTarget(this); ^^^^^^^^^^^^^^^^^^^^ Error: Compilation failed. Command: /home/rnp/snap/flutter/common/flutter/bin/cache/dart-sdk/bin/dart --disable-dart-dev /home/rnp/snap/flutter/common/flutter/bin/cache/dart-sdk/bin/snapshots/dart2js.dart.snapshot --platform-binaries=/home/rnp/snap/flutter/common/flutter/bin/cache/flutter_web_sdk/kernel --invoker=flutter_tool -Ddart.vm.product=true -DFLUTTER_WEB_AUTO_DETECT=true -DFLUTTER_WEB_CANVASKIT_URL=https://www.gstatic.com/flutter-canvaskit/22b600f240548c1cf6f5d3f9ae65a5c9e51bc443/ --native-null-assertions --no-source-maps -o

[TatankaConCube]

what version of the Flutter framework do you use for building the app? please provide the output of the command flutter doctor

To resolve the issue please try the following:

• update Flutter to the latest stable version;
• call flutter clean in the root directory of your Flutter project, then call flutter pub get;
• try to build a web app again;