[TV] TVGuide fails to display (1 Viewer)

sridharb
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MediaPortal Version: SVN from 02-06-2010
Windows Version: Windows 7 64-bit

In the latest SVN, the TVGuide fails to display. I get a series of
2010-02-06 19:47:34.882308 [ERROR][MPMain(1)]: ProcessWindows exception:confused:ystem.NullReferenceException: Object reference not set to an instance of an object.
at TvPlugin.TvGuideBase.Process()
errors when I do so.

The resulting screen looks like the attached picture.

I have attached the relevant logs.

What could be going wrong? If any other details are needed, please let me know.


Thanks,
Sridhar
 

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sridharb
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The problem was that I had Radio channels. It was also speculated in a separate thread that having an IPTV channel also causes this. I deleted the RadioWebBuiltIn card as well as deleted all the IPTV cards. That didn't help until I actually got rid of all the radio channels.

Hopefully this is fixed soon.
 

jameson_uk
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    had this once after I changed some setting or other.

    Try clearing the skin cache and restarting MP
     

    infinite.loop

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    Can you please start Tv Server configuration -> go to manual control -> see if you can select channels there

    I would guess that you can not.
    Please also check inside "Channels" if all your channels are maped to the "All Channels" group at least.

    Questions:
    - did this issue suddenly occur?
    - did this issue occur after and upgrade to a recent svn build?
    - did this issue occur after a clean installation + channelscan?
    - did you do a clean installation and used a imported channellist backup?
     

    sridharb
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    Hi Chris,

    Thanks for responding. I now realize that this back story could also be useful.

    1. The issue did not suddenly occur.
    2. I had moved from an XP-based system to a Windows 7-based 64-bit system (clean install). I had problems with my ATSC TV cards being recognized - this was solved in the latest SVN.
    3. Now that the TV cards (Hauppauge 2250 and 1600) were recognized, I went ahead and imported my old channel information into the new database.
    4. This is when I started having these problems.
    5. Then I did a clean install (fresh database as well) and did a scan.
    6. These problems continued.
    7. In another thread (https://forum.team-mediaportal.com/electronic-program-guide-67/tv-guide-changegroup-73372/), people had a similar issue. There it was speculated that deleting the web radio channel as well as the IP TV channel solved it. I tried that and it didn't help.
    8. In another thread (https://forum.team-mediaportal.com/radio-482/tv-oder-radio-sender-hinzufuegen-1-1-0-a-69871/), people talked about the radio channels being the issue. Since radio is not that important, I just deleted them and voila, the TV guide works.

    Regarding the mapping of the channels to the All Channels list: yes, all the channels do appear in the All Channels group. However, when I right click on a channel and say Add to All Channels, the group for that channel shows as All Channels. When I exit and come back, the group indication for that channel is wiped out. The All Channels group is untouched.

    I do not see in the database a link between the All Channels group and the channels - is this maintained elsewhere? That is there is no attribute in the Channels table that refer to the group Id table.

    Thanks,
    Sridhar
     

    infinite.loop

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    sridharb

    this is quite strange....

    what happens inside "Manual Control" of the Tv Server Configuration application?
    Can you select and tune channels there?
     

    sridharb
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    Hi Chris,

    Yes, I am able to select and tune channels in the Manual Control section. I had not played with this before.

    Please let me know if you would like to change something and then try reintroducing the Radio Channels.

    Regards,
    Sridhar
     

    sridharb
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    Yes, I am able to select and tune channels in the Manual Control section. I had not played with this before.
    Hmm... then your info inside the database seems to be okay..... but why wont it work inside MediaPortal.... :confused:
    Just want to point out that it is "working" in MediaPortal. I am able to see the channels as well as view the TV Guide. The problem seemed to be when the Radio Channels were there as well.
     

    infinite.loop

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    Yes, I am able to select and tune channels in the Manual Control section. I had not played with this before.
    Hmm... then your info inside the database seems to be okay..... but why wont it work inside MediaPortal.... :confused:
    Just want to point out that it is "working" in MediaPortal. I am able to see the channels as well as view the TV Guide. The problem seemed to be when the Radio Channels were there as well.
    Oh i missed that.
    So you deleted all your radiostations and then it worked?
     

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