Still a issue on XUbuntu

Distributor ID: Ubuntu
Description:    Ubuntu 16.04.3 LTS
Release:        16.04
Codename:       xenial

4.10.0-32-generic #36~16.04.1-Ubuntu SMP Wed Aug 9 09:19:02 UTC 2017
x86_64 x86_64 x86_64 GNU/Linux

When I click on "System tab" the app exitxs with the following
exception:

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 Sysinfo.SystemInfo.Gnome () <0x42012310 + 0x000a8> in <filename unknown>:0 
  at Sysinfo.Sysinfo.on_notebook1_switch_page (System.Object o, 
Gtk.SwitchPageArgs e) <0x4200bb40 + 0x0011b> in <filename unknown>:0 
  at Gtk.Notebook.SwitchPageSignalCallback (IntPtr arg0, IntPtr arg1, UInt32 
arg2, IntPtr gch) <0x4200b320 + 0x002f7> in <filename unknown>:0 
  at GLib.ExceptionManager.RaiseUnhandledException (System.Exception e, Boolean 
is_terminal) [0x00000] in <filename unknown>:0 
  at Gtk.Notebook.SwitchPageSignalCallback (IntPtr arg0, IntPtr arg1, UInt32 
arg2, IntPtr gch) [0x00000] in <filename unknown>:0 
  at Gtk.Notebook.gtk_notebook_set_current_page (IntPtr , Int32 ) [0x00000] in 
<filename unknown>:0 
  at Gtk.Notebook.set_CurrentPage (Int32 value) [0x00000] in <filename 
unknown>:0 
  at Sysinfo.Sysinfo.on_treeview1_cursor_changed (System.Object o, 
System.EventArgs e) [0x00000] in <filename unknown>:0 
  at System.Reflection.MonoMethod.InternalInvoke (System.Reflection.MonoMethod 
, System.Object , System.Object[] , System.Exception& ) [0x00000] in <filename 
unknown>:0 
  at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags 
invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, 
System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0 
  at System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] 
parameters) [0x00000] in <filename unknown>:0 
  at System.Delegate.DynamicInvokeImpl (System.Object[] args) [0x00000] in 
<filename unknown>:0 
  at System.MulticastDelegate.DynamicInvokeImpl (System.Object[] args) 
[0x00000] in <filename unknown>:0 
  at System.Delegate.DynamicInvoke (System.Object[] args) [0x00000] in 
<filename unknown>:0 
  at GLib.Signal.ClosureInvokedCB (System.Object o, GLib.ClosureInvokedArgs 
args) [0x00000] in <filename unknown>:0 
  at GLib.SignalClosure.Invoke (GLib.ClosureInvokedArgs args) [0x00000] in 
<filename unknown>:0 
  at GLib.SignalClosure.MarshalCallback (IntPtr raw_closure, IntPtr return_val, 
UInt32 n_param_vals, IntPtr param_values, IntPtr invocation_hint, IntPtr 
marshal_data) [0x00000] in <filename unknown>:0 
  at Gtk.Application.gtk_main () [0x00000] in <filename unknown>:0 
  at Gtk.Application.Run () [0x00000] in <filename unknown>:0 
  at Sysinfo.Sysinfo..ctor (System.String[] args) [0x00000] in <filename 
unknown>:0 
  at Sysinfo.Sysinfo.Main (System.String[] args) [0x00000] in <filename 
unknown>:0

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https://bugs.launchpad.net/bugs/1575182

Title:
  sysinfo crashes on ubuntu 16.04 (since upgrade)

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