{"action":"created","issue":{"url":"https://api.github.com/repos/DynamoDS/Dynamo/issues/6393","repository_url":"https://api.github.com/repos/DynamoDS/Dynamo","labels_url":"https://api.github.com/repos/DynamoDS/Dynamo/issues/6393/labels{/name}","comments_url":"https://api.github.com/repos/DynamoDS/Dynamo/issues/6393/comments","events_url":"https://api.github.com/repos/DynamoDS/Dynamo/issues/6393/events","html_url":"https://github.com/DynamoDS/Dynamo/issues/6393","id":146695799,"number":6393,"title":"Crash Report - 20160407","user":{"login":"vykrum","id":5621624,"avatar_url":"https://avatars.githubusercontent.com/u/5621624?v=3","gravatar_id":"","url":"https://api.github.com/users/vykrum","html_url":"https://github.com/vykrum","followers_url":"https://api.github.com/users/vykrum/followers","following_url":"https://api.github.com/users/vykrum/following{/other_user}","gists_url":"https://api.github.com/users/vykrum/gists{/gist_id}","starred_url":"https://api.github.com/users/vykrum/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/vykrum/subscriptions","organizations_url":"https://api.github.com/users/vykrum/orgs","repos_url":"https://api.github.com/users/vykrum/repos","events_url":"https://api.github.com/users/vykrum/events{/privacy}","received_events_url":"https://api.github.com/users/vykrum/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":3,"created_at":"2016-04-07T17:42:02Z","updated_at":"2016-04-07T19:47:01Z","closed_at":null,"body":"## Dynamo version\r\n\r\n1.0.0.692\r\n\r\n## Operating system\r\n\r\nWindows 10\r\n\r\n## What did you do? \r\n\r\nWas trying to understand ScopeIf nodes and put two of them on a blank canvas and then added two code blocks to generate number ranges.\r\n\r\n## What did you expect to see?\r\n\r\nDidn't know what to expect. \r\n\r\n## What did you see instead?\r\nFirst got a cyclic dependency error and on deleting the ScopeIf nodes ... a crash\r\n\r\nObject reference not set to an instance of an object.\r\n\r\n   at Dynamo.UI.Controls.PreviewControl.<>c__DisplayClassc.<RefreshExpandedDisplay>b__b(AsyncTask m)\r\n   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)\r\n   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)\r\n   at System.Windows.Threading.DispatcherOperation.InvokeImpl()\r\n   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)\r\n   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)\r\n   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)\r\n   at MS.Internal.CulturePreservingExecutionContext.Run(CulturePreservingExecutionContext executionContext, ContextCallback callback, Object state)\r\n   at System.Windows.Threading.DispatcherOperation.Invoke()\r\n   at System.Windows.Threading.Dispatcher.ProcessQueue()\r\n   at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)\r\n   at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)\r\n   at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)\r\n   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)\r\n   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)\r\n   at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)\r\n   at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)\r\n   at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)\r\n   at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)\r\n   at System.Windows.Application.RunDispatcher(Object ignore)\r\n   at System.Windows.Application.RunInternal(Window window)\r\n   at DynamoSandbox.Program.MakeStandaloneAndRun(String commandFilePath, DynamoViewModel& viewModel)\r\n   at DynamoSandbox.Program.Main(String[] args)\r\n"},"comment":{"url":"https://api.github.com/repos/DynamoDS/Dynamo/issues/comments/207063588","html_url":"https://github.com/DynamoDS/Dynamo/issues/6393#issuecomment-207063588","issue_url":"https://api.github.com/repos/DynamoDS/Dynamo/issues/6393","id":207063588,"user":{"login":"jnealb","id":9357222,"avatar_url":"https://avatars.githubusercontent.com/u/9357222?v=3","gravatar_id":"","url":"https://api.github.com/users/jnealb","html_url":"https://github.com/jnealb","followers_url":"https://api.github.com/users/jnealb/followers","following_url":"https://api.github.com/users/jnealb/following{/other_user}","gists_url":"https://api.github.com/users/jnealb/gists{/gist_id}","starred_url":"https://api.github.com/users/jnealb/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jnealb/subscriptions","organizations_url":"https://api.github.com/users/jnealb/orgs","repos_url":"https://api.github.com/users/jnealb/repos","events_url":"https://api.github.com/users/jnealb/events{/privacy}","received_events_url":"https://api.github.com/users/jnealb/received_events","type":"User","site_admin":false},"created_at":"2016-04-07T19:47:01Z","updated_at":"2016-04-07T19:47:01Z","body":"@kronz @ke-yu Could not reproduce - note that this stack is the well-known PB crash one, perhaps this is an edge case that still remains (MAGN-9750 etc)?"}}