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<blockquote data-quote="offbyone" data-source="post: 344240" data-attributes="member: 73415">Ok after compiling the TVService was running as 64 bit, I recompiled for x86 and now I get the error again.it is in the file TvLibrary.Implementations.TvCardCollection.DetectCards() line 118:[CODE]if (devices.Length &gt; 0)&nbsp; &nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; ITuningSpace tuningSpace;&nbsp; &nbsp; &nbsp; &nbsp; ILocator locator;&nbsp; &nbsp; &nbsp; &nbsp; IFilterGraph2 graphBuilder = (IFilterGraph2)new FilterGraph();&nbsp; &nbsp; &nbsp; &nbsp; DsROTEntry rotEntry = new DsROTEntry(graphBuilder);&nbsp; &nbsp; &nbsp; &nbsp; //DVBT&nbsp; &nbsp; &nbsp; &nbsp; Guid networkProviderClsId = typeof(DVBTNetworkProvider).GUID;&nbsp; &nbsp; &nbsp; &nbsp; IBaseFilter networkDVBT = FilterGraphTools.AddFilterFromClsid(graphBuilder, networkProviderClsId, &quot;DVBT Network Provider&quot;);&nbsp; &nbsp; &nbsp; &nbsp; tuningSpace = (ITuningSpace)new DVBTuningSpace();&nbsp; &nbsp; &nbsp; &nbsp; tuningSpace.put_UniqueName(&quot;DVBC TuningSpace&quot;);&nbsp; &nbsp; &nbsp; &nbsp; tuningSpace.put_FriendlyName(&quot;DVBC TuningSpace&quot;);&nbsp; &nbsp; &nbsp; &nbsp; tuningSpace.put__NetworkType(typeof(DVBTNetworkProvider).GUID);&nbsp; &nbsp; &nbsp; &nbsp; ((IDVBTuningSpace)tuningSpace).put_SystemType(DVBSystemType.Terrestrial);&nbsp; &nbsp; &nbsp; &nbsp; locator = (ILocator)new DVBTLocator();&nbsp; &nbsp; &nbsp; &nbsp; locator.put_CarrierFrequency(-1);&nbsp; &nbsp; &nbsp; &nbsp; locator.put_InnerFEC(FECMethod.MethodNotSet);&nbsp; &nbsp; &nbsp; &nbsp; locator.put_InnerFECRate(BinaryConvolutionCodeRate.RateNotSet);&nbsp; &nbsp; &nbsp; &nbsp; locator.put_Modulation(ModulationType.ModNotSet);&nbsp; &nbsp; &nbsp; &nbsp; locator.put_OuterFEC(FECMethod.MethodNotSet);&nbsp; &nbsp; &nbsp; &nbsp; locator.put_OuterFECRate(BinaryConvolutionCodeRate.RateNotSet);&nbsp; &nbsp; &nbsp; &nbsp; locator.put_SymbolRate(-1);&nbsp; &nbsp; &nbsp; &nbsp; tuningSpace.put_DefaultLocator(locator);&nbsp; &nbsp; &nbsp; &nbsp; ((ITuner)networkDVBT).put_TuningSpace(tuningSpace);[/CODE]the last line throws the error, any idea? I don't have any DVB-T device...I changed it to only detect DVB-C card and now it's working.Maybe you should put a try catch around the detection of each card type?In my case the variable networkDVBT was null a giving the exception!</blockquote>

[QUOTE="offbyone, post: 344240, member: 73415"] Ok after compiling the TVService was running as 64 bit, I recompiled for x86 and now I get the error again. it is in the file TvLibrary.Implementations.TvCardCollection.DetectCards() line 118: [CODE]if (devices.Length > 0) { ITuningSpace tuningSpace; ILocator locator; IFilterGraph2 graphBuilder = (IFilterGraph2)new FilterGraph(); DsROTEntry rotEntry = new DsROTEntry(graphBuilder); //DVBT Guid networkProviderClsId = typeof(DVBTNetworkProvider).GUID; IBaseFilter networkDVBT = FilterGraphTools.AddFilterFromClsid(graphBuilder, networkProviderClsId, "DVBT Network Provider"); tuningSpace = (ITuningSpace)new DVBTuningSpace(); tuningSpace.put_UniqueName("DVBC TuningSpace"); tuningSpace.put_FriendlyName("DVBC TuningSpace"); tuningSpace.put__NetworkType(typeof(DVBTNetworkProvider).GUID); ((IDVBTuningSpace)tuningSpace).put_SystemType(DVBSystemType.Terrestrial); locator = (ILocator)new DVBTLocator(); locator.put_CarrierFrequency(-1); locator.put_InnerFEC(FECMethod.MethodNotSet); locator.put_InnerFECRate(BinaryConvolutionCodeRate.RateNotSet); locator.put_Modulation(ModulationType.ModNotSet); locator.put_OuterFEC(FECMethod.MethodNotSet); locator.put_OuterFECRate(BinaryConvolutionCodeRate.RateNotSet); locator.put_SymbolRate(-1); tuningSpace.put_DefaultLocator(locator); ((ITuner)networkDVBT).put_TuningSpace(tuningSpace);[/CODE] the last line throws the error, any idea? I don't have any DVB-T device... I changed it to only detect DVB-C card and now it's working. Maybe you should put a try catch around the detection of each card type? In my case the variable networkDVBT was null a giving the exception! [/QUOTE]

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