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[Bug 841505] Re: Unhandled Exception: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation

To: desktop-packages@xxxxxxxxxxxxxxxxxxx
From: rfcmedia <rfcmedia@xxxxxxxxx>
Date: Mon, 05 Sep 2011 03:23:21 -0000
Reply-to: Bug 841505 <841505@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
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You received this bug notification because you are a member of Desktop
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https://bugs.launchpad.net/bugs/841505

Title:
  Unhandled Exception: System.Reflection.TargetInvocationException:
  Exception has been thrown by the target of an invocation

Status in “banshee” package in Ubuntu:
  New

Bug description:
  Banshee crashed while I was listening to a song (I was not using the interface, the music just suddenly stopped, and banshee had disappeared)
  [I believe the relevant error is at the very end, and somewhere in the middle of this long copy-paste, but I really have no clue]
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:44:56.347] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:44:57.913] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:44:58.872] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:44:59.884] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:01.029] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:01.925] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:02.964] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:04.433] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:05.024] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:06.388] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:07.937] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:08.608] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:10.419] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:11.275] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:12.436] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:13.369] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:14.365] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:15.910] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:16.677] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:17.952] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:18.873] Caught an exception - System.Net.WebException: Error: NameResolutionFailure (in `System')
    at System.Net.HttpWebRequest.EndGetResponse (IAsyncResult asyncResult) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.GetResponse () [0x00000] in <filename unknown>:0 
    at Banshee.Metadata.MetadataServiceJob.GetHttpStream (System.Uri uri, System.String[] ignoreMimeTypes) [0x00000] in <filename unknown>:0 
    at Banshee.Metadata.MetadataServiceJob.GetHttpStream (System.Uri uri) [0x00000] in <filename unknown>:0 
    at Banshee.Metadata.Rhapsody.RhapsodyQueryJob.Run () [0x00000] in <filename unknown>:0 
    at Banshee.Metadata.MetadataServiceJob.Run () [0x00000] in <filename unknown>:0 
  [Warn  17:45:20.122] Caught an exception - System.Net.WebException: Error: NameResolutionFailure (in `System')
    at System.Net.HttpWebRequest.EndGetResponse (IAsyncResult asyncResult) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.GetResponse () [0x00000] in <filename unknown>:0 
    at Banshee.Metadata.MetadataServiceJob.GetHttpStream (System.Uri uri, System.String[] ignoreMimeTypes) [0x00000] in <filename unknown>:0 
    at Banshee.Metadata.MetadataServiceJob.GetHttpStream (System.Uri uri) [0x00000] in <filename unknown>:0 
    at Banshee.Metadata.Rhapsody.RhapsodyQueryJob.Run () [0x00000] in <filename unknown>:0 
    at Banshee.Metadata.MetadataServiceJob.Run () [0x00000] in <filename unknown>:0 
  [Warn  17:45:21.444] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:22.445] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:23.387] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:24.446] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:25.307] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:26.560] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:27.468] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:29.256] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:30.456] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:31.074] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:33.026] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:33.715] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:35.022] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:35.752] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:37.011] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:37.994] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:38.947] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:41.336] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:42.037] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:43.428] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:44.971] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:45.708] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:46.942] Caught an exception - System.UriFormatException: Invalid URI: The Authority/Host could not be parsed. (in `System')
    at System.Uri.Parse (UriKind kind, System.String uriString) [0x00000] in <filename unknown>:0 
    at System.Uri.ParseUri (UriKind kind) [0x00000] in <filename unknown>:0 
    at System.Uri.Merge (System.Uri baseUri, System.String relativeUri) [0x00000] in <filename unknown>:0 
    at System.Uri..ctor (System.Uri baseUri, System.String relativeUri) [0x00000] in <filename unknown>:0 
    at Banshee.Metadata.Rhapsody.RhapsodyQueryJob.Run () [0x00000] in <filename unknown>:0 
    at Banshee.Metadata.MetadataServiceJob.Run () [0x00000] in <filename unknown>:0 
  [Warn  17:45:48.243] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:48.920] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:50.046] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:51.534] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:52.508] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:53.513] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:54.527] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:55.626] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:57.093] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:58.552] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:45:59.562] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:46:00.572] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:46:01.325] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Warn  17:46:02.500] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 
  [Error 17:46:27.452] GStreamer resource error: Failed
  [Warn  17:46:42.480] Caught an exception - System.Net.WebException: The remote server returned an error: (404) Not Found. (in `System')
    at System.Net.HttpWebRequest.CheckFinalStatus (System.Net.WebAsyncResult result) [0x00000] in <filename unknown>:0 
    at System.Net.HttpWebRequest.SetResponseData (System.Net.WebConnectionData data) [0x00000] in <filename unknown>:0 

  Unhandled Exception: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.NullReferenceException: Object reference not set to an instance of an object
    at Mono.Zeroconf.Providers.AvahiDBus.BrowseService.DisposeResolver () [0x00000] in <filename unknown>:0 
    at Mono.Zeroconf.Providers.AvahiDBus.BrowseService.Dispose () [0x00000] in <filename unknown>:0 
    at Mono.Zeroconf.Providers.AvahiDBus.ServiceBrowser.OnItemRemove (Int32 interface, Protocol protocol, System.String name, System.String type, System.String domain, LookupResultFlags flags) [0x00000] in <filename unknown>:0 
    at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exception&)
    at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0 
    --- End of inner exception stack trace ---
    at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0 
    at System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) [0x00000] in <filename unknown>:0 
    at System.Delegate.DynamicInvokeImpl (System.Object[] args) [0x00000] in <filename unknown>:0 
    at System.MulticastDelegate.DynamicInvokeImpl (System.Object[] args) [0x00000] in <filename unknown>:0 
    at System.Delegate.DynamicInvoke (System.Object[] args) [0x00000] in <filename unknown>:0 
    at NDesk.DBus.Connection.HandleSignal (NDesk.DBus.Message msg) [0x00000] in <filename unknown>:0 
    at NDesk.DBus.Connection.DispatchSignals () [0x00000] in <filename unknown>:0 
    at NDesk.DBus.Connection.Iterate () [0x00000] in <filename unknown>:0 
    at Mono.Zeroconf.Providers.AvahiDBus.DBusManager.IterateThread (System.Object o) [0x00000] in <filename unknown>:0 
  aki@magnesium:~$ banshee 
  [Info  19:05:18.170] Running Banshee 2.1.3: [Ubuntu oneiric (development branch) (linux-gnu, i686) @ 2011-08-25 18:47:15 UTC]

  (Banshee:13661): Gtk-WARNING **: Unable to locate theme engine in
  module_path: "pixmap",

  (Banshee:13661): Gtk-WARNING **: Unable to locate theme engine in
  module_path: "pixmap",

  (Banshee:13661): Gtk-WARNING **: Unable to locate theme engine in
  module_path: "pixmap",

  (Banshee:13661): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
  [Info  19:05:19.225] Updating web proxy from GConf
  [Info  19:05:19.379] All services are started 0.948766
  [Info  19:05:19.984] AmazonMP3 store redirect URL: https://one.ubuntu.com/music/store/amz/
  ** (Banshee:13661): DEBUG: SyncDaemon already running, initializing SyncdaemonDaemon object

  (Banshee:13661): libsoup-WARNING **: No feature manager for feature of
  type 'U1RequestChrome'

  ** (Banshee:13661): WARNING **: Error calling get_info: Traceback (most recent call last):
    File "/usr/lib/python2.7/dist-packages/dbus/service.py", line 702, in _message_cb
      retval = candidate_method(self, *args, **keywords)
    File "/usr/lib/python2.7/dist-packages/ubuntuone-client/ubuntuone/platform/linux/dbus_interface.py", line 1041, in get_info
      return self.syncdaemon_folders.get_info(path)
    File "/usr/lib/python2.7/dist-packages/ubuntuone-client/ubuntuone/syncdaemon/interaction_interfaces.py", line 640, in get_info
      mdobj = self.fs.get_by_path(path.encode('utf-8'))
    File "/usr/lib/python2.7/dist-packages/ubuntuone-client/ubuntuone/syncdaemon/filesystem_manager.py", line 777, in get_by_path
      mdid = self._idx_path[path]
  KeyError: '/home/aki/.ubuntuone/Purchased from Ubuntu One'

  
  ** (Banshee:13661): CRITICAL **: syncdaemon_folder_info_get_subscribed: assertion `SYNCDAEMON_IS_FOLDER_INFO (finfo)' failed

  ** (Banshee:13661): WARNING **: Error rescanning Purchased Music: No such file or directory
  ** (Banshee:13661): DEBUG: Loading the real store page

  ** (Banshee:13661): WARNING **: Got less number of items in credentials hash table than expected!
  [Info  19:05:21.336] nereid Client Started
  [Info  19:05:21.461] GStreamer version 0.10.35.0, gapless: True, replaygain: False
  [Info  19:05:21.530] AppleDeviceSource is ignoring unmounted volume 40 GB Filesystem
  [Info  19:05:21.569] AppleDeviceSource is ignoring unmounted volume _Fedora-15-i686-
    
  Unhandled Exception: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.NullReferenceException: Object reference not set to an instance of an object
    at Mono.Zeroconf.Providers.AvahiDBus.BrowseService.DisposeResolver () [0x00000] in <filename unknown>:0 
    at Mono.Zeroconf.Providers.AvahiDBus.BrowseService.Dispose () [0x00000] in <filename unknown>:0 
    at Mono.Zeroconf.Providers.AvahiDBus.ServiceBrowser.OnItemRemove (Int32 interface, Protocol protocol, System.String name, System.String type, System.String domain, LookupResultFlags flags) [0x00000] in <filename unknown>:0 
    at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exception&)
    at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0 
    --- End of inner exception stack trace ---
    at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0 
    at System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) [0x00000] in <filename unknown>:0 
    at System.Delegate.DynamicInvokeImpl (System.Object[] args) [0x00000] in <filename unknown>:0 
    at System.MulticastDelegate.DynamicInvokeImpl (System.Object[] args) [0x00000] in <filename unknown>:0 
    at System.Delegate.DynamicInvoke (System.Object[] args) [0x00000] in <filename unknown>:0 
    at NDesk.DBus.Connection.HandleSignal (NDesk.DBus.Message msg) [0x00000] in <filename unknown>:0 
    at NDesk.DBus.Connection.DispatchSignals () [0x00000] in <filename unknown>:0 
    at NDesk.DBus.Connection.Iterate () [0x00000] in <filename unknown>:0 
    at Mono.Zeroconf.Providers.AvahiDBus.DBusManager.IterateThread (System.Object o) [0x00000] in <filename unknown>:0

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: banshee 2.1.3-1ubuntu1
  ProcVersionSignature: Ubuntu 3.0.0-9.15-generic-pae 3.0.3
  Uname: Linux 3.0.0-9-generic-pae i686
  Architecture: i386
  Date: Sun Sep  4 20:14:37 2011
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta i386 (20110901)
  ProcEnviron:
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: banshee
  UpgradeStatus: No upgrade log present (probably fresh install)

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References

[Bug 841505] [NEW] Unhandled Exception: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation
From: rfcmedia, 2011-09-05