Unhandled exception (MediaPortal Installation Tool) (1 Viewer)

[jeremfg]

I've decide to upgrade my MP install and turned out I bricked everything instead...

I was using MP 1.4.0 Final and went for the upgrade to MP 1.6.0 Final
Before starting the install, I stopped TV-Service, but left everything else running (I'm using Argus-TV).

On the screen listing all the steps that the installer will be performing, I had clicked "Install".... But the installer hung there!
I let it run for quite a while, but once I was sure it was completely hung, I just killed the process.

Before my second attempt, I decided to uninstall MPExtended and disable all Services that could be remotely related (aka Argus-TV, etc...)

I re-launched the installer... But now I can't even get to the list of components to install... When I click next-> on the "Start with the installation now OR Only download required components" screen, I get the following stack trace:

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 MediaPortal.DeployTool.Sections.UpgradeDlg.UpdateUI()
   at MediaPortal.DeployTool.Sections.UpgradeDlg..ctor()
   at MediaPortal.DeployTool.DialogFlowHandler.GetDialogInstance(DialogType dlgType)
   at MediaPortal.DeployTool.Sections.DownloadOnlyDlg.GetNextDialog()
   at MediaPortal.DeployTool.DeployTool.nextButton_Click(Object sender, EventArgs e)
   at System.Windows.Forms.Control.OnClick(EventArgs e)
   at System.Windows.Forms.Button.OnClick(EventArgs e)
   at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
   at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.ButtonBase.WndProc(Message& m)
   at System.Windows.Forms.Button.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
----------------------------------------
MediaPortal.DeployTool
    Assembly Version: 1.2.0.1656
    Win32 Version: 1.2.0.0
    CodeBase: file:///C:/Users/ADMINI~1/AppData/Local/Temp/1/MediaPortal%20Installation/MediaPortal.DeployTool.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
----------------------------------------
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
----------------------------------------
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
----------------------------------------

************** 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:

<configuration>
    <system.windows.forms jitDebugging="true" />
</configuration>

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.

I've found a guy who seemed to have had the same issue, but nothing to point me in the right direction yet...
https://forum.team-mediaportal.com/threads/unhandled-exception-when-installing-mp.123043

I know that Windows Server 2008 R2 is not officially supported, but it was working fine before so I'm hoping the error is easily fixable...

I'd be ready to install MP fresh (seems like it's all unistalled anyway, doesn't show up on Add/Remove programs)... Is there anything I need to clear to allow a "fresh" install? Registry keys, files, etc...? Cleanup everything that might prevent the installer from doing it's job?

Thank you for your help!