Object reference not set to an instance of an object

[HelenaG]

Hello,

I have updated the less,js by the console (#69) before. Now I started WinLess as the administrator a checked the About tab. It says that there is a new version of less.js. I tried to upgrade via the interface but it throws the following error. I also followed this thread (#67) and checked .net 3.5.1 checkboxws, restarted PC and winless, but it didn't help. The error:

See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.

************** Exception Text **************
System.NullReferenceException: Object reference not set to an instance of an object.
at WinLess.aboutForm..ctor()
at WinLess.mainForm.aboutToolStripMenuItem_Click(Object sender, EventArgs e)
at System.Windows.Forms.ToolStripItem.RaiseEvent(Object key, EventArgs e)
at System.Windows.Forms.ToolStripMenuItem.OnClick(EventArgs e)
at System.Windows.Forms.ToolStripItem.HandleClick(EventArgs e)
at System.Windows.Forms.ToolStripItem.HandleMouseUp(MouseEventArgs e)
at System.Windows.Forms.ToolStripItem.FireEventInteractive(EventArgs e, ToolStripItemEventType met)
at System.Windows.Forms.ToolStripItem.FireEvent(EventArgs e, ToolStripItemEventType met)
at System.Windows.Forms.ToolStrip.OnMouseUp(MouseEventArgs mea)
at System.Windows.Forms.ToolStripDropDown.OnMouseUp(MouseEventArgs mea)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
at System.Windows.Forms.ToolStrip.WndProc(Message& m)
at System.Windows.Forms.ToolStripDropDown.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

************** Loaded Assemblies **************
mscorlib
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.5472 (Win7SP1GDR.050727-5400)

CodeBase: file:///C:/Windows/Microsoft.NET/Framework/v2.0.50727/mscorlib.dll

WinLess
Assembly Version: 1.8.1.0
Win32 Version: 1.8.1.0

CodeBase: file:///C:/Program%20Files%20(x86)/Mark%20Lagendijk/WinLess/WinLess.exe

System.Windows.Forms
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.5468 (Win7SP1GDR.050727-5400)

CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Windows.Forms/2.0.0.0__b77a5c561934e089/System.Windows.Forms.dll

System
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.5467 (Win7SP1GDR.050727-5400)

CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll

System.Drawing
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.5467 (Win7SP1GDR.050727-5400)

CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Drawing/2.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll

Microsoft.VisualBasic
Assembly Version: 8.0.0.0
Win32 Version: 8.0.50727.5420 (Win7SP1.050727-5400)

CodeBase: file:///C:/Windows/assembly/GAC_MSIL/Microsoft.VisualBasic/8.0.0.0__b03f5f7f11d50a3a/Microsoft.VisualBasic.dll

NDesk.Options
Assembly Version: 0.2.1.0
Win32 Version: 0.2.1.0

CodeBase: file:///C:/Program%20Files%20(x86)/Mark%20Lagendijk/WinLess/NDesk.Options.DLL

System.Runtime.Remoting
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.5420 (Win7SP1.050727-5400)

CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Runtime.Remoting/2.0.0.0__b77a5c561934e089/System.Runtime.Remoting.dll

System.Configuration
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.5476 (Win7SP1GDR.050727-5400)

CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Configuration/2.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll

System.Xml
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.5476 (Win7SP1GDR.050727-5400)

CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Xml/2.0.0.0__b77a5c561934e089/System.Xml.dll

Ookii.Dialogs.Wpf
Assembly Version: 1.0.0.0
Win32 Version: 1.0.0.0

CodeBase: file:///C:/Program%20Files%20(x86)/Mark%20Lagendijk/WinLess/Ookii.Dialogs.Wpf.DLL

System.Deployment
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.5420 (Win7SP1.050727-5400)

CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Deployment/2.0.0.0__b03f5f7f11d50a3a/System.Deployment.dll

hxudly38
Assembly Version: 1.8.1.0
Win32 Version: 2.0.50727.5467 (Win7SP1GDR.050727-5400)

CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll

PresentationFramework
Assembly Version: 3.0.0.0
Win32 Version: 3.0.6920.5453 built by: Win7SP1GDR

CodeBase: file:///C:/Windows/assembly/GAC_MSIL/PresentationFramework/3.0.0.0__31bf3856ad364e35/PresentationFramework.dll

WindowsBase
Assembly Version: 3.0.0.0
Win32 Version: 3.0.6920.5453 built by: Win7SP1GDR

CodeBase: file:///C:/Windows/assembly/GAC_MSIL/WindowsBase/3.0.0.0__31bf3856ad364e35/WindowsBase.dll

PresentationCore
Assembly Version: 3.0.0.0
Win32 Version: 3.0.6920.5453 built by: Win7SP1GDR

CodeBase: file:///C:/Windows/assembly/GAC_32/PresentationCore/3.0.0.0__31bf3856ad364e35/PresentationCore.dll

************** JIT Debugging **************
To enable just-in-time (JIT) debugging, the .config file for this
application or computer (machine.config) must have the
jitDebugging value set in the system.windows.forms section.
The application must also be compiled with debugging
enabled.

For example:

When JIT debugging is enabled, any unhandled exception
will be sent to the JIT debugger registered on the computer
rather than be handled by this dialog box.

[HelenaG]

I uninstalled WinLess and installed again and now it is ok.