{"action":"opened","issue":{"url":"https://api.github.com/repos/google/box2d.dart/issues/2","repository_url":"https://api.github.com/repos/google/box2d.dart","labels_url":"https://api.github.com/repos/google/box2d.dart/issues/2/labels{/name}","comments_url":"https://api.github.com/repos/google/box2d.dart/issues/2/comments","events_url":"https://api.github.com/repos/google/box2d.dart/issues/2/events","html_url":"https://github.com/google/box2d.dart/issues/2","id":144498736,"number":2,"title":"Error thrown using debug world with vector_math > 1.4.3","user":{"login":"benoitletondor","id":868054,"avatar_url":"https://avatars.githubusercontent.com/u/868054?v=3","gravatar_id":"","url":"https://api.github.com/users/benoitletondor","html_url":"https://github.com/benoitletondor","followers_url":"https://api.github.com/users/benoitletondor/followers","following_url":"https://api.github.com/users/benoitletondor/following{/other_user}","gists_url":"https://api.github.com/users/benoitletondor/gists{/gist_id}","starred_url":"https://api.github.com/users/benoitletondor/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/benoitletondor/subscriptions","organizations_url":"https://api.github.com/users/benoitletondor/orgs","repos_url":"https://api.github.com/users/benoitletondor/repos","events_url":"https://api.github.com/users/benoitletondor/events{/privacy}","received_events_url":"https://api.github.com/users/benoitletondor/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2016-03-30T08:14:10Z","updated_at":"2016-03-30T08:14:10Z","closed_at":null,"body":"Hello there.\r\n\r\nI have this error being thrown using any version of vector_math superior to 1.4.3. Seems that is related to box2d and it works perfectly using vector_math 1.4.3.\r\n\r\n> Uncaught Unhandled exception:\r\n> 'package:box2d/src/dynamics/world.dart': Failed assertion: line 114 pos 44: ') {\r\n>     _destructionListener ' is not true.\r\n> #0      _AssertionError._throwNew (dart:core-patch/errors_patch.dart:27)\r\n> #1      Transform.mulToOutUnsafeVec2 (package:box2d/src/common/transform.dart:91:12)\r\n> #2      World.drawShape (package:box2d/src/dynamics/world.dart:1501:23)\r\n> #3      World.drawDebugData (package:box2d/src/dynamics/world.dart:662:13)\r\n\r\nThanks in advance for looking at it, and thank you for the good work done :)"}}