Unhandled Exception

[GratefulRen]

I just (had to) re-install Win10, it is a clean install. Now I'm trying to install NextPVR. I ran the setup, and tried to log in. But it took me to a blank page. I see NextPVR in my Windows Tray. But when I double click on it a box pops up with a giant red X. Then I get an Unhandled Exception Error. Note this is as far as I got. 

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 SkiaSharp.Views.Desktop.SKGLControl.OnPaint(PaintEventArgs e)
  at System.Windows.Forms.Control.PaintWithErrorHandling(PaintEventArgs e, Int16 layer)
  at System.Windows.Forms.Control.WmPaint(Message& m)
  at System.Windows.Forms.Control.WndProc(Message& m)
  at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
  at System.Windows.Forms.ContainerControl.WndProc(Message& m)
  at System.Windows.Forms.UserControl.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: 4.0.0.0
    Win32 Version: 4.8.4121.0 built by: NET48REL1LAST_C
    CodeBase: file:///C:/Windows/Microsoft.NET/Framework/v4.0.30319/mscorlib.dll
----------------------------------------
NextPVR
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///C:/Program%20Files/NextPVR/client/NextPVR.exe
----------------------------------------
NUtility
    Assembly Version: 5.0.0.0
    Win32 Version: 5.0.0.0
    CodeBase: file:///C:/Program%20Files/NextPVR/client/NUtility.DLL
----------------------------------------
netstandard
    Assembly Version: 2.0.0.0
    Win32 Version: 4.8.3752.0
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/netstandard/v4.0_2.0.0.0__cc7b13ffcd2ddd51/netstandard.dll
----------------------------------------
System.Windows.Forms
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4121.0 built by: NET48REL1LAST_C
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms/v4.0_4.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
----------------------------------------
System
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4001.0 built by: NET48REL1LAST_C
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
System.Drawing
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.3752.0 built by: NET48REL1
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
NextPVRUI
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///C:/Program%20Files/NextPVR/client/NextPVRUI.DLL
----------------------------------------
NShared
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///C:/Program%20Files/NextPVR/client/NShared.DLL
----------------------------------------
System.Configuration
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.3752.0 built by: NET48REL1
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
----------------------------------------
System.Core
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4121.0 built by: NET48REL1LAST_C
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Core/v4.0_4.0.0.0__b77a5c561934e089/System.Core.dll
----------------------------------------
System.Xml
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.3752.0 built by: NET48REL1
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
Accessibility
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.3752.0 built by: NET48REL1
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Accessibility/v4.0_4.0.0.0__b03f5f7f11d50a3a/Accessibility.dll
----------------------------------------
SkiaSharp.Views.WindowsForms
    Assembly Version: 2.80.0.0
    Win32 Version: 2.80.3.0
    CodeBase: file:///C:/Program%20Files/NextPVR/client/SkiaSharp.Views.WindowsForms.DLL
----------------------------------------
OpenTK.GLControl
    Assembly Version: 3.1.0.0
    Win32 Version: 3.1.0
    CodeBase: file:///C:/Program%20Files/NextPVR/client/OpenTK.GLControl.DLL
----------------------------------------
OpenTK
    Assembly Version: 3.1.0.0
    Win32 Version: 3.1.0
    CodeBase: file:///C:/Program%20Files/NextPVR/client/OpenTK.DLL
----------------------------------------
SkiaSharp
    Assembly Version: 2.80.0.0
    Win32 Version: 2.80.3.0
    CodeBase: file:///C:/Program%20Files/NextPVR/client/SkiaSharp.DLL
----------------------------------------
System.Runtime.InteropServices.RuntimeInformation
    Assembly Version: 4.0.2.0
    Win32 Version: 4.6.26011.01
    CodeBase: file:///C:/Program%20Files/NextPVR/client/System.Runtime.InteropServices.RuntimeInformation.DLL
----------------------------------------
Topten.RichTextKit
    Assembly Version: 0.4.148.0
    Win32 Version: 0.4.148
    CodeBase: file:///C:/Program%20Files/NextPVR/client/Topten.RichTextKit.DLL
----------------------------------------
System.Memory
    Assembly Version: 4.0.1.1
    Win32 Version: 4.6.27617.02
    CodeBase: file:///C:/Program%20Files/NextPVR/client/System.Memory.DLL
----------------------------------------
System.Buffers
    Assembly Version: 4.0.2.0
    Win32 Version: 4.6.25519.03
    CodeBase: file:///C:/Program%20Files/NextPVR/client/System.Buffers.DLL
----------------------------------------
System.Runtime.CompilerServices.Unsafe
    Assembly Version: 4.0.4.1
    Win32 Version: 4.6.26919.02
    CodeBase: file:///C:/Program%20Files/NextPVR/client/System.Runtime.CompilerServices.Unsafe.DLL
----------------------------------------
System.Runtime
    Assembly Version: 4.1.2.0
    Win32 Version: 4.6.25714.01
    CodeBase: file:///C:/Program%20Files/NextPVR/client/System.Runtime.DLL
----------------------------------------
SkiaSharp.Views.Desktop.Common
    Assembly Version: 2.80.0.0
    Win32 Version: 2.80.3.0
    CodeBase: file:///C:/Program%20Files/NextPVR/client/SkiaSharp.Views.Desktop.Common.DLL
----------------------------------------
System.Net.Http
    Assembly Version: 4.2.0.0
    Win32 Version: 4.6.26011.01
    CodeBase: file:///C:/Program%20Files/NextPVR/client/System.Net.Http.DLL
----------------------------------------
HarfBuzzSharp
    Assembly Version: 1.0.0.0
    Win32 Version: 2.6.1.8
    CodeBase: file:///C:/Program%20Files/NextPVR/client/HarfBuzzSharp.DLL
----------------------------------------
Newtonsoft.Json
    Assembly Version: 13.0.0.0
    Win32 Version: 13.0.1.25517
    CodeBase: file:///C:/Program%20Files/NextPVR/client/Newtonsoft.Json.DLL
----------------------------------------
System.Numerics
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.3752.0 built by: NET48REL1
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Numerics/v4.0_4.0.0.0__b77a5c561934e089/System.Numerics.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.

Now what?


Thanks

[mvallevand]

Does NextPVR.exe open with the -nogl command line parameter?

Martin

[GratefulRen]

Does NextPVR.exe open with the -nogl command line parameter?

Martin

Yes, if I change to C:\Program Files\NextPVR\Client> and then execute the NextPVR -nogl, but it will only start from that directory. Otherwise is says: 'nextpvr.exe' is not recognized as an internal or external command, 
operable program or batch file.

Thanks REn

[sub]

So basically your machine doesn't support opengl. Just edit the shortcut in the Windows Start menu to include the -nogl parameter.

Alternatively, look into why your machine doesn't support opengl.

[mvallevand]

For the shortcut you add the -nogl after the quotes

"C:\Program Files\NextPVR\Client\NextPVR.exe" -nogl

Martin

[GratefulRen]

OK. I got opengl installed and am able to start nextpvr from a shortcut I've created without the nogl parm and it starts fine. So i went to the server login thing and got logged on and went to devices to scan for channels, and received the message: This device currently has no channels, hit the Scan or Import buttons to add channels to this device. However I don't see SCAN, only two imports. One for using M3U and one for XC.

[mvallevand]

Are you trying to use IPTV or something else?

Martin

[sub]

OK. I got opengl installed and am able to start nextpvr from a shortcut I've created without the nogl parm and it starts fine.

Ok, great you got that sorted. For the record, people usually don't end up needing to install anything to get this going. Usually it's just a matter of having the proper video drivers installed for their video card, rather than generic drivers).

So i went to the server login thing and got logged on and went to devices to scan for channels, and received the message: This device currently has no channels, hit the Scan or Import buttons to add channels to this device. However I don't see SCAN, only two imports. One for using M3U and one for XC.

Where are you going to be getting your TV channels from?

[GratefulRen]

I normally just "Scan for Channels". No I don't have IPTV. I have a Mygica USB 2.0 TV Tuner (with antenna) that supports ATSC/QAM Here is the entire contents of my log:
[...startup]
2022-05-06 06:41:57.652 [DEBUG][1] Doing device discovery
2022-05-06 06:41:57.688 [DEBUG][1] About to detect digital tuners
2022-05-06 06:41:57.698 [DEBUG][1] About to check for HDPVR/Colossus/Siena tuners.
2022-05-06 06:41:57.703 [DEBUG][1] About to check for analog tuners
2022-05-06 06:41:57.714 [DEBUG][1] FindFilterByName failed to locate filter: MainConcept (HCW) MPEG Multiplexer-Plus
2022-05-06 06:41:57.714 [DEBUG][1] MainConcept mux not present. Disabling analog support.

[mvallevand]

We need the zipped logs you get from the Settings->General page. It doesn't look like you have the drivers for you tuner installed, which you might have forgotten on the reinstall. Does the player that came with your card work? If you don't have that I suggest downloading Filter Check, to see what is installed https://github.com/sub3/NextPVR/wiki/FilterCheck and seeing if it finds your card. We can help with the results if you want to show them.

Martin.