{"action":"created","issue":{"url":"https://api.github.com/repos/flutter/flutter/issues/24882","repository_url":"https://api.github.com/repos/flutter/flutter","labels_url":"https://api.github.com/repos/flutter/flutter/issues/24882/labels{/name}","comments_url":"https://api.github.com/repos/flutter/flutter/issues/24882/comments","events_url":"https://api.github.com/repos/flutter/flutter/issues/24882/events","html_url":"https://github.com/flutter/flutter/issues/24882","id":386277113,"node_id":"MDU6SXNzdWUzODYyNzcxMTM=","number":24882,"title":"Crash at KeepAlive.applyParentData","user":{"login":"robertoscaramuzzi","id":26262509,"node_id":"MDQ6VXNlcjI2MjYyNTA5","avatar_url":"https://avatars0.githubusercontent.com/u/26262509?v=4","gravatar_id":"","url":"https://api.github.com/users/robertoscaramuzzi","html_url":"https://github.com/robertoscaramuzzi","followers_url":"https://api.github.com/users/robertoscaramuzzi/followers","following_url":"https://api.github.com/users/robertoscaramuzzi/following{/other_user}","gists_url":"https://api.github.com/users/robertoscaramuzzi/gists{/gist_id}","starred_url":"https://api.github.com/users/robertoscaramuzzi/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/robertoscaramuzzi/subscriptions","organizations_url":"https://api.github.com/users/robertoscaramuzzi/orgs","repos_url":"https://api.github.com/users/robertoscaramuzzi/repos","events_url":"https://api.github.com/users/robertoscaramuzzi/events{/privacy}","received_events_url":"https://api.github.com/users/robertoscaramuzzi/received_events","type":"User","site_admin":false},"labels":[{"id":469500179,"node_id":"MDU6TGFiZWw0Njk1MDAxNzk=","url":"https://api.github.com/repos/flutter/flutter/labels/customer:%20mulligan%20(g3)","name":"customer: mulligan (g3)","color":"bfe5bf","default":false},{"id":284437560,"node_id":"MDU6TGFiZWwyODQ0Mzc1NjA=","url":"https://api.github.com/repos/flutter/flutter/labels/framework","name":"framework","color":"207de5","default":false},{"id":283479343,"node_id":"MDU6TGFiZWwyODM0NzkzNDM=","url":"https://api.github.com/repos/flutter/flutter/labels/severe:%20crash","name":"severe: crash","color":"900000","default":false}],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":{"url":"https://api.github.com/repos/flutter/flutter/milestones/22","html_url":"https://github.com/flutter/flutter/milestone/22","labels_url":"https://api.github.com/repos/flutter/flutter/milestones/22/labels","id":2270094,"node_id":"MDk6TWlsZXN0b25lMjI3MDA5NA==","number":22,"title":"Goals","description":"P2: These are tasks we think are worth fixing in the coming years. It includes issues we've identified that might block fully shipping broad consumer-facing apps, correctness issues, and bugs relating to polish and quality.\r\n\r\nThe date on this milestone is utterly arbitrary and just intended to sort the milestone appropriately.","creator":{"login":"Hixie","id":551196,"node_id":"MDQ6VXNlcjU1MTE5Ng==","avatar_url":"https://avatars2.githubusercontent.com/u/551196?v=4","gravatar_id":"","url":"https://api.github.com/users/Hixie","html_url":"https://github.com/Hixie","followers_url":"https://api.github.com/users/Hixie/followers","following_url":"https://api.github.com/users/Hixie/following{/other_user}","gists_url":"https://api.github.com/users/Hixie/gists{/gist_id}","starred_url":"https://api.github.com/users/Hixie/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/Hixie/subscriptions","organizations_url":"https://api.github.com/users/Hixie/orgs","repos_url":"https://api.github.com/users/Hixie/repos","events_url":"https://api.github.com/users/Hixie/events{/privacy}","received_events_url":"https://api.github.com/users/Hixie/received_events","type":"User","site_admin":false},"open_issues":1644,"closed_issues":738,"state":"open","created_at":"2017-01-23T00:27:59Z","updated_at":"2018-12-03T17:24:03Z","due_on":"2031-01-01T08:00:00Z","closed_at":null},"comments":1,"created_at":"2018-11-30T17:17:33Z","updated_at":"2018-12-03T17:53:30Z","closed_at":null,"author_association":"CONTRIBUTOR","body":"Our logs report crashes (about 120 a day) with the following stack trace. Looking at the code it seems likely that renderObject.parentData is null. We don't have a simple repro yet.\r\n```\r\nNoSuchMethodError\r\n  | at KeepAlive.applyParentData | (package:flutter/src/widgets/sliver.dart:1233)\r\n  | at RenderObjectElement._updateParentData | (package:flutter/src/widgets/framework.dart:4638)\r\n  | at ParentDataElement._applyParentData.applyParentDataToChild | (package:flutter/src/widgets/framework.dart:3998)\r\n  | at ComponentElement.visitChildren | (package:flutter/src/widgets/framework.dart:3711)\r\n  | at ParentDataElement._applyParentData.applyParentDataToChild | (package:flutter/src/widgets/framework.dart:4001)\r\n  | at ComponentElement.visitChildren | (package:flutter/src/widgets/framework.dart:3711)\r\n  | at ParentDataElement._applyParentData | (package:flutter/src/widgets/framework.dart:4004)\r\n  | at ParentDataElement.applyWidgetOutOfTurn | (package:flutter/src/widgets/framework.dart:4043)\r\n  | at _AutomaticKeepAliveState._updateParentDataOfChild | (package:flutter/src/widgets/automatic_keep_alive.dart:139)\r\n  | at _AutomaticKeepAliveState._addClient.<anonymous closure> | (package:flutter/src/widgets/automatic_keep_alive.dart:97)\r\n  | at _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding._invokeFrameCallback | (package:flutter/src/scheduler/binding.dart:990)\r\n  | at _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding.handleDrawFrame | (package:flutter/src/scheduler/binding.dart:938)\r\n  | at _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding._handleDrawFrame | (package:flutter/src/scheduler/binding.dart:842)\r\nFrame omitted: internal code\r\n  | at _rootRun | (dart:async/zone.dart:1124)\r\n  | at _ZoneDelegate.run | (dart:async/zone.dart:711)\r\nFrame omitted: internal code\r\n  | at _CustomZone.run | (dart:async/zone.dart:1021)\r\n  | at _CustomZone.runGuarded | (dart:async/zone.dart:923)\r\n  | at _invoke | (dart:ui/hooks.dart:147)\r\n  | at _drawFrame | (dart:ui/hooks.dart:134)\r\n```\r\n"},"comment":{"url":"https://api.github.com/repos/flutter/flutter/issues/comments/443804041","html_url":"https://github.com/flutter/flutter/issues/24882#issuecomment-443804041","issue_url":"https://api.github.com/repos/flutter/flutter/issues/24882","id":443804041,"node_id":"MDEyOklzc3VlQ29tbWVudDQ0MzgwNDA0MQ==","user":{"login":"robertoscaramuzzi","id":26262509,"node_id":"MDQ6VXNlcjI2MjYyNTA5","avatar_url":"https://avatars0.githubusercontent.com/u/26262509?v=4","gravatar_id":"","url":"https://api.github.com/users/robertoscaramuzzi","html_url":"https://github.com/robertoscaramuzzi","followers_url":"https://api.github.com/users/robertoscaramuzzi/followers","following_url":"https://api.github.com/users/robertoscaramuzzi/following{/other_user}","gists_url":"https://api.github.com/users/robertoscaramuzzi/gists{/gist_id}","starred_url":"https://api.github.com/users/robertoscaramuzzi/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/robertoscaramuzzi/subscriptions","organizations_url":"https://api.github.com/users/robertoscaramuzzi/orgs","repos_url":"https://api.github.com/users/robertoscaramuzzi/repos","events_url":"https://api.github.com/users/robertoscaramuzzi/events{/privacy}","received_events_url":"https://api.github.com/users/robertoscaramuzzi/received_events","type":"User","site_admin":false},"created_at":"2018-12-03T17:53:30Z","updated_at":"2018-12-03T17:53:30Z","author_association":"CONTRIBUTOR","body":"The output contained some internal info. I pasted it to our internal bug and assigned the bug to you. Can you please extract the relevant info and copy it back here?"}}
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