Firefox indexer not working: files in ToIndex never removed

[Frederik Himpe <fhimpe telenet be>]

Hi, I'm using Mandriva 2009.1 with Beagle 0.3.9 running on mono 2.2. I 
have enabled the Beagle Indexer 1.1 add-on in Firefox 3.0.8, but it does 
not seem to be working: I had a huge amount of unindexed web pages which 
were never removed from ~/.beagle/ToIndex.

The only error I could find in the logs is this backtrace:

20090420 22:18:48.7264 12883 Beagle ERROR EX: Caught exception while instantiating IndexingService backend
20090420 22:18:48.7264 12883 Beagle ERROR EX: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.UnauthorizedAccessException: Access to the path "/home/frederik/.beagle/Indexes/IndexingServiceIndex/Locks/lucene-87e2d2d7eab46d37e08cb23db1c76b0c-write.lock" is denied.
20090420 22:18:48.7264 12883 Beagle ERROR EX:   at System.IO.File.Delete (System.String path) [0x00000] 
20090420 22:18:48.7264 12883 Beagle ERROR EX:   at System.IO.Directory.RecursiveDelete (System.String path) [0x00000] 
20090420 22:18:48.7264 12883 Beagle ERROR EX:   at System.IO.Directory.RecursiveDelete (System.String path) [0x00000] 
20090420 22:18:48.7264 12883 Beagle ERROR EX:   at System.IO.Directory.Delete (System.String path, Boolean recursive) [0x00000] 
20090420 22:18:48.7264 12883 Beagle ERROR EX:   at Beagle.Daemon.LuceneCommon.Create () [0x00000] 
20090420 22:18:48.7264 12883 Beagle ERROR EX:   at Beagle.Daemon.LuceneQueryingDriver..ctor (System.String index_name, Int32 minor_version, Boolean read_only) [0x00000] 
20090420 22:18:48.7264 12883 Beagle ERROR EX:   at Beagle.Daemon.LuceneQueryable.BuildLuceneQueryingDriver (System.String index_name, Int32 minor_version, Boolean read_only_mode) [0x00000] 
20090420 22:18:48.7264 12883 Beagle ERROR EX:   at Beagle.Daemon.LuceneQueryable..ctor (System.String index_name, Int32 minor_version, Boolean read_only_mode) [0x00000] 
20090420 22:18:48.7264 12883 Beagle ERROR EX:   at Beagle.Daemon.LuceneQueryable..ctor (System.String index_name) [0x00000] 
20090420 22:18:48.7264 12883 Beagle ERROR EX:   at Beagle.Daemon.IndexingServiceQueryable.IndexingServiceQueryable..ctor () [0x00000] 
20090420 22:18:48.7264 12883 Beagle ERROR EX:   at (wrapper managed-to-native) System.Reflection.MonoCMethod:InternalInvoke (object,object[],System.Exception&)
20090420 22:18:48.7264 12883 Beagle ERROR EX:   at System.Reflection.MonoCMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] 
20090420 22:18:48.7264 12883 Beagle ERROR EX:   --- End of inner exception stack trace ---
20090420 22:18:48.7264 12883 Beagle ERROR EX:   at System.Reflection.MonoCMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] 
20090420 22:18:48.7264 12883 Beagle ERROR EX:   at System.Reflection.MonoCMethod.Invoke (BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] 
20090420 22:18:48.7264 12883 Beagle ERROR EX:   at System.Reflection.ConstructorInfo.Invoke (System.Object[] parameters) [0x00000] 
20090420 22:18:48.7264 12883 Beagle ERROR EX:   at System.Activator.CreateInstance (System.Type type, Boolean nonPublic) [0x00000] 
20090420 22:18:48.7264 12883 Beagle ERROR EX:   at System.Activator.CreateInstance (System.Type type) [0x00000] 
20090420 22:18:48.7264 12883 Beagle ERROR EX:   at Beagle.Daemon.QueryDriver.ScanAssemblyForQueryables (System.Reflection.Assembly assembly) [0x00000] 

Does anybody have an idea about why the Firefox indexer does not work?

-- 
Frederik Himpe