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expression_evaluation_web_test failed, "Exception: Received app.stop event while waiting for app.started event", causing Linux web_tool_tests 2.29% flaky #84012
Description
07:45 +14 ~2 -1: test/web.shard/expression_evaluation_web_test.dart: Flutter run for web can evaluate trivial expressions in library without pause [E]
Exception: Received app.stop event while waiting for app.started event
[ +51 ms] FINE: Pub 2.14.0-182.0.dev
[ +26 ms] SLVR: fact: test is 0.0.0
[ +9 ms] SLVR: derived: test
[ +23 ms] SLVR: fact: test depends on flutter any from sdk
[ +1 ms] SLVR: selecting test
[ ] SLVR: derived: flutter any from sdk
[ +15 ms] SLVR: fact: flutter 0.0.0 from sdk depends on characters 1.1.0
[ ] SLVR: fact: flutter 0.0.0 from sdk depends on collection 1.15.0
[ ] SLVR: fact: flutter 0.0.0 from sdk depends on meta 1.4.0
[ ] SLVR: fact: flutter 0.0.0 from sdk depends on typed_data 1.3.0
[ ] SLVR: fact: flutter 0.0.0 from sdk depends on vector_math 2.1.0
[ ] SLVR: fact: flutter 0.0.0 from sdk depends on sky_engine any from sdk
[ ] SLVR: selecting flutter 0.0.0 from sdk
[ ] SLVR: derived: sky_engine any from sdk
[ ] SLVR: derived: vector_math 2.1.0
[ ] SLVR: derived: typed_data 1.3.0
[ ] SLVR: derived: meta 1.4.0
[ ] SLVR: derived: collection 1.15.0
[ ] SLVR: derived: characters 1.1.0
[ +6 ms] SLVR: selecting sky_engine 0.0.99 from sdk
[ +6 ms] SLVR: selecting vector_math 2.1.0
[ +5 ms] SLVR: fact: typed_data 1.3.0 depends on collection ^1.15.0
[ ] SLVR: selecting typed_data 1.3.0
[ +2 ms] SLVR: selecting meta 1.4.0
[ +2 ms] SLVR: selecting collection 1.15.0
[ +1 ms] SLVR: selecting characters 1.1.0
[ +84 ms] SLVR: Version solving took 0:00:00.168091 seconds.
[ ] | Tried 1 solutions.
[ ] FINE: Resolving dependencies finished (0.193s).
[ +51 ms] IO : Writing 1107 characters to text file ./pubspec.lock.
[ ] FINE: Contents:
[ ] | # Generated by pub
[ ] | # See https://dart.dev/tools/pub/glossary#lockfile
[ ] | packages:
[ ] | characters:
[ ] | dependency: transitive
[ ] | description:
[ ] | name: characters
[ ] | url: "https://pub.dartlang.org"
[ ] | source: hosted
[ ] | version: "1.1.0"
[ ] | collection:
[ ] | dependency: transitive
[ ] | description:
[ ] | name: collection
[ ] | url: "https://pub.dartlang.org"
[ ] | source: hosted
[ ] | version: "1.15.0"
[ ] | flutter:
[ ] | dependency: "direct main"
[ ] | description: flutter
[ ] | source: sdk
[ ] | version: "0.0.0"
[ ] | meta:
[ ] | dependency: transitive
[ ] | description:
[ ] | name: meta
[ ] | url: "https://pub.dartlang.org"
[ ] | source: hosted
[ ] | version: "1.4.0"
[ ] | sky_engine:
[ ] | dependency: transitive
[ ] | description: flutter
[ ] | source: sdk
[ ] | version: "0.0.99"
[ ] | typed_data:
[ ] | dependency: transitive
[ ] | description:
[ ] | name: typed_data
[ ] | url: "https://pub.dartlang.org"
[ ] | source: hosted
[ ] | version: "1.3.0"
[ ] | vector_math:
[ ] | dependency: transitive
[ ] | description:
[ ] | name: vector_math
[ ] | url: "https://pub.dartlang.org"
[ ] | source: hosted
[ ] | version: "2.1.0"
[ ] | sdks:
[ ] | dart: ">=2.12.0-0 <3.0.0"
[ +7 ms] IO : Writing 791 characters to text file ./.packages.
[ ] FINE: Contents:
[ ] | # This file is deprecated. Tools should instead consume
[ ] | # `.dart_tools/package_config.json`.
[ ] | #
[ ] | # For more info see: https://dart.dev/go/dot-packages-deprecation
[ ] | #
[ ] | # Generated by pub on 2021-06-04 18:41:34.143973.
[ ] | characters:file:///b/s/w/ir/x/w/.pub-cache/hosted/pub.dartlang.org/characters-1.1.0/lib/
[ ] | collection:file:///b/s/w/ir/x/w/.pub-cache/hosted/pub.dartlang.org/collection-1.15.0/lib/
[ ] | flutter:file:///b/s/w/ir/x/w/flutter/packages/flutter/lib/
[ ] | meta:file:///b/s/w/ir/x/w/.pub-cache/hosted/pub.dartlang.org/meta-1.4.0/lib/
[ ] | sky_engine:file:///b/s/w/ir/x/w/flutter/bin/cache/pkg/sky_engine/lib/
[ ] | typed_data:file:///b/s/w/ir/x/w/.pub-cache/hosted/pub.dartlang.org/typed_data-1.3.0/lib/
[ ] | vector_math:file:///b/s/w/ir/x/w/.pub-cache/hosted/pub.dartlang.org/vector_math-2.1.0/lib/
[ ] | test:lib/
[ +10 ms] IO : Writing 1574 characters to text file ./.dart_tool/package_config.json.
[ ] FINE: Contents:
[ ] | {
[ ] | "configVersion": 2,
[ ] | "packages": [
[ ] | {
[ ] | "name": "characters",
[ ] | "rootUri": "file:///b/s/w/ir/x/w/.pub-cache/hosted/pub.dartlang.org/characters-1.1.0",
[ ] | "packageUri": "lib/",
[ ] | "languageVersion": "2.12"
[ ] | },
[ ] | {
[ ] | "name": "collection",
[ ] | "rootUri": "file:///b/s/w/ir/x/w/.pub-cache/hosted/pub.dartlang.org/collection-1.15.0",
[ ] | "packageUri": "lib/",
[ ] | "languageVersion": "2.12"
[ ] | },
[ ] | {
[ ] | "name": "flutter",
[ ] | "rootUri": "file:///b/s/w/ir/x/w/flutter/packages/flutter",
[ ] | "packageUri": "lib/",
[ ] | "languageVersion": "2.12"
[ ] | },
[ ] | {
[ ] | "name": "meta",
[ ] | "rootUri": "file:///b/s/w/ir/x/w/.pub-cache/hosted/pub.dartlang.org/meta-1.4.0",
[ ] | "packageUri": "lib/",
[ ] | "languageVersion": "2.12"
[ ] | },
[ ] | {
[ ] | "name": "sky_engine",
[ ] | "rootUri": "file:///b/s/w/ir/x/w/flutter/bin/cache/pkg/sky_engine",
[ ] | "packageUri": "lib/",
[ ] | "languageVersion": "2.12"
[ ] | },
[ ] | {
[ ] | "name": "typed_data",
[ ] | "rootUri": "file:///b/s/w/ir/x/w/.pub-cache/hosted/pub.dartlang.org/typed_data-1.3.0",
[ ] | "packageUri": "lib/",
[ ] | "languageVersion": "2.12"
[ ] | },
[ ] | {
[ ] | "name": "vector_math",
[ ] | "rootUri": "file:///b/s/w/ir/x/w/.pub-cache/hosted/pub.dartlang.org/vector_math-2.1.0",
[ ] | "packageUri": "lib/",
[ ] | "languageVersion": "2.12"
[ ] | },
[ ] | {
[ ] | "name": "test",
[ ] | "rootUri": "../",
[ ] | "packageUri": "lib/",
[ ] | "languageVersion": "2.12"
[ ] | }
[ ] | ],
[ ] | "generated": "2021-06-04T18:41:34.156005Z",
[ ] | "generator": "pub",
[ ] | "generatorVersion": "2.14.0-182.0.dev"
[ ] | }
Failed to establish connection with the application instance in Chrome.
This can happen if the websocket connection used by the web tooling is unable to correctly establish a connection, for example due to a firewall.
Similar to #69711
Activity
jmagman commentedon Jun 4, 2021
\cc @annagrin @bkonyi
jmagman commentedon Jun 4, 2021
Passed on re-run, lowering priority.
[-]expression_evaluation_web_test failed, "Exception: Received app.stop event while waiting for app.started event"[/-][+]expression_evaluation_web_test failed, "Exception: Received app.stop event while waiting for app.started event", causing `Linux web_tool_tests` 2.29% flaky[/+]keyonghan commentedon Jun 7, 2021
Assigning to @zanderso based on ownership of
Linux web_tool_tests, and labeled P1 as the flakiness ratio exceeds 2%.zanderso commentedon Jun 7, 2021
Some question as on #84134 for @jonahwilliams @grouma and @annagrin. Would this be helped by #83899?
grouma commentedon Jun 7, 2021
Possibly. Not clear from the message if Chrome died mid test or if it just never spawned correctly.
30 remaining items
annagrin commentedon Aug 5, 2021
Similar error on flutter HHH bot, now with better error reporting:
https://ci.chromium.org/ui/p/dart/builders/ci.sandbox/flutter-engine-linux-web_tests/3108
Looks like a port is taken when dwds tries to bind to it - opened an issue: dart-lang/webdev#1378
Fix pending: dart-lang/webdev#1379
zanderso commentedon Aug 9, 2021
@annagrin Does Flutter need to update the dwds version to pick up dart-lang/webdev#1379 ?
fluttergithubbot commentedon Aug 9, 2021
Current flaky ratio for the past 15 days is 1.69%.
One recent flaky example for a same commit: https://ci.chromium.org/ui/p/flutter/builders/prod/Linux%20web_tool_tests/3156
Commit: d3bdbed
Flaky builds:
https://ci.chromium.org/ui/p/flutter/builders/prod/Linux%20web_tool_tests/3156
https://ci.chromium.org/ui/p/flutter/builders/prod/Linux%20web_tool_tests/3132
https://ci.chromium.org/ui/p/flutter/builders/prod/Linux%20web_tool_tests/3112
annagrin commentedon Aug 9, 2021
Yes, I'll publish a new version today and will submit a flutter PR
a-siva commentedon Aug 16, 2021
Any updates on this P1 issue ?
fluttergithubbot commentedon Aug 16, 2021
Current flaky ratio for the past 15 days is 2.33%.
One recent flaky example for a same commit: https://ci.chromium.org/ui/p/flutter/builders/prod/Linux%20web_tool_tests/3156
Commit: d3bdbed
Flaky builds:
https://ci.chromium.org/ui/p/flutter/builders/prod/Linux%20web_tool_tests/3156
https://ci.chromium.org/ui/p/flutter/builders/prod/Linux%20web_tool_tests/3132
https://ci.chromium.org/ui/p/flutter/builders/prod/Linux%20web_tool_tests/3112
annagrin commentedon Aug 18, 2021
@a-siva I have a fix in dwds, working on publishing a new version of dwds: dart-lang/webdev#1385
Update dwds and other packages
Update dwds and other packages (#88450)
Update dwds and other packages (flutter#88450)
github-actions commentedon Sep 1, 2021
This thread has been automatically locked since there has not been any recent activity after it was closed. If you are still experiencing a similar issue, please open a new bug, including the output of
flutter doctor -vand a minimal reproduction of the issue.