[ubuntu-mono] [Bug 792037] [NEW] gtwitter.exe crashed with System.NullReferenceException in gtwitter.MainWindow.UpdateRefresh()

[Eliah Kagan]

Public bug reported:

Binary package hint: gtwitter

In a Unity session on a Natty i386 system, I ran gtwitter 1.0~beta-10
from a Terminal window. It opened with the Preferences window, as I had
not previously configured it. I allowed it to remain idle for several
minutes, and then it crashed, with mono printing the following trace:

Exception in Gtk# callback delegate
  Note: Applications can use GLib.ExceptionManager.UnhandledException to handle the exception.
System.NullReferenceException: Object reference not set to an instance of an object
  at gtwitter.MainWindow.UpdateRefresh () [0x00000] in <filename unknown>:0 
  at GLib.Timeout+TimeoutProxy.Handler () [0x00000] in <filename unknown>:0 
   at GLib.ExceptionManager.RaiseUnhandledException(System.Exception e, Boolean is_terminal)
   at GLib.Timeout+TimeoutProxy.Handler()
   at Gtk.Application.gtk_main()
   at Gtk.Application.Run()
   at gtwitter.MainClass.MainWindowInit()
   at gtwitter.MainClass.Main(System.String[] args)

I can reproduce this easily; it occurs every time I launch gtwitter, and
leave it alone for a few minutes.

The information attached by Apport was obtained by running ubuntu-bug
with the PID of the mono instance running gtwitter.exe, after
relaunching gtwitter.

I would be pleased to perform additional debugging tasks, upon request.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: gtwitter 1.0~beta-10
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic i686
Architecture: i386
Date: Thu Jun  2 15:50:30 2011
ExecutablePath: /usr/lib/gtwitter/gtwitter.exe
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
InterpreterPath: /usr/bin/mono
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_US:en
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: gtwitter
UpgradeStatus: Upgraded to natty on 2011-04-01 (62 days ago)

** Affects: gtwitter (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 natty running-unity

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https://bugs.launchpad.net/bugs/792037

Title:
  gtwitter.exe crashed with System.NullReferenceException in
  gtwitter.MainWindow.UpdateRefresh()

Status in “gtwitter” package in Ubuntu:
  New

Bug description:
  Binary package hint: gtwitter

  In a Unity session on a Natty i386 system, I ran gtwitter 1.0~beta-10
  from a Terminal window. It opened with the Preferences window, as I
  had not previously configured it. I allowed it to remain idle for
  several minutes, and then it crashed, with mono printing the following
  trace:

  Exception in Gtk# callback delegate
    Note: Applications can use GLib.ExceptionManager.UnhandledException to handle the exception.
  System.NullReferenceException: Object reference not set to an instance of an object
    at gtwitter.MainWindow.UpdateRefresh () [0x00000] in <filename unknown>:0 
    at GLib.Timeout+TimeoutProxy.Handler () [0x00000] in <filename unknown>:0 
     at GLib.ExceptionManager.RaiseUnhandledException(System.Exception e, Boolean is_terminal)
     at GLib.Timeout+TimeoutProxy.Handler()
     at Gtk.Application.gtk_main()
     at Gtk.Application.Run()
     at gtwitter.MainClass.MainWindowInit()
     at gtwitter.MainClass.Main(System.String[] args)

  I can reproduce this easily; it occurs every time I launch gtwitter,
  and leave it alone for a few minutes.

  The information attached by Apport was obtained by running ubuntu-bug
  with the PID of the mono instance running gtwitter.exe, after
  relaunching gtwitter.

  I would be pleased to perform additional debugging tasks, upon
  request.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: gtwitter 1.0~beta-10
  ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
  Uname: Linux 2.6.38-8-generic i686
  Architecture: i386
  Date: Thu Jun  2 15:50:30 2011
  ExecutablePath: /usr/lib/gtwitter/gtwitter.exe
  InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
  InterpreterPath: /usr/bin/mono
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=en_US:en
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: gtwitter
  UpgradeStatus: Upgraded to natty on 2011-04-01 (62 days ago)