Error after channel scan

[kevinb]

Using Windows 10 and WinTV 950Q. I scan for analog channels and when scan is complete, I hit 'OK', and get this error:
System.NullReferenceException: Object reference not set to an instance of an object.
at NShared.AnalogScanChannelForm.buttonOK_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)

[sub]

I'm not sure why you'd get that, but for the record - a US user would not typically scan for analog channels. A few reasons:

1) these days I think most of the analog cable systems are turned off in North America.

2) even when there were still analog cable systems in the states, North American users created their channels using the 'Import' button, and importing from Schedules Direct or xmltv files. In the North America the RF channel numbers were fixed numbers, always specified by the guide channel number. That was not the case in the rest of the world, where channels would be on different RF channels in every town, and required the users to Scan for channels.

3) if you using an analog tuner to capture from a set top box, using coax, you wouldn't scan for channels, since it'll only ever find CH2/CH3. In this type of setup you also use the Import button, but making sure you select the appropriate input (either fixed channel number, or composite/svideo)

...in summary, not sure why you're getting that crash, and I'll take look at the code...but you shouldn't be scanning for analog channels if you're in USA.

EDIT: I'm pretty sure this crash was resolved with an updated NUtilities.dll patch I posted recently, but as I mentioned above - you definitely don't need this.

[kevinb]

I am, in fact, using the output from a set top box. I am unable to import any channels because I don't have an xmltv file. And from what I can tell, I can't create an xmltv file because I have no channel list. Forgive me if I'm missing something obvious, this is all new to me.

[Graham]

... I am unable to import any channels because I don't have an xmltv file. ...

Did you see this ... http://www.nextpvr.com/nwiki/pmwiki.php?...etupDialog

Most people obtain EPG info from Schedules Direct. You may be able to find an XMLTV source for your area ... for example, https://stackoverflow.com/questions/5030...o-make-one

There are a variety of xmltv grabbers. An example would be http://wiki.xmltv.org/index.php/Main_Page

[sub]

I am, in fact, using the output from a set top box. I am unable to import any channels because I don't have an xmltv file. And from what I can tell, I can't create an xmltv file because I have no channel list. Forgive me if I'm missing something obvious, this is all new to me.

Yeah, no point scanning from a set top box. ie, it's got no way to know what channels might be able to come from a set top box.

If you don't have an EPG to import the channels from, you can use the 'Add' button to manually add the channels that are available from this source. Make sure you set the input source to Fixed-Channel, and set the channel to either 2 or 3, whichever RF channel your set top box sends on (or composite/svideo if you're using those). I'd consider getting a Schedules Direct account - a PVR is going to be a lot more use to your with TV Listings, and this will also allow you to do that 'Import'.

Ultimately for this type of setup to be useful, you'd also need to have an IR Blaster, so NextPVR can tell the set top box to change channels when it needs to.

[kevinb]

I actually tried adding the fixed channel manually and got the same object reference error. And I'm working on the ir blaster. Baby steps.

[sub]

Try applying this patch.

[kevinb]

Success! Thank you very much.

[sub]

Great!

[Axehandler]

I've had a nice setup that Worked fine on the MCE That Microsoft just deleted off my windows 10. With the Creators update
SO I'm switching to NextPVR instead of doing the MCE Work around. (tired of messing around with it anyways)

I've ran into this same issue, and have already updated with the Patch.
My wife has a TFC IPTV box that I input to SVIDEO (also tried with Channel 3) on the Hauppauge


[ATTACHMENT NOT FOUND]


I've attempted to add my log.zip here also..

Not sure why I'm getting this error and don't need a "guide" as it's just 1 channel that is never recorded.
Does the NextPVR see the Hauppauge incorrectly?
am I doing something wrong?

Thanks in advance for looking
Axehandler