Unhandled exception, emby won't start

[ddurdle 75]

Emby 3.5.3 running on Debian Stretch.  On a restart, now Emby will not restart successfully, generating the following unhandled exception.

 

 System.ArgumentNullException: Value cannot be null.

Parameter name: key

   at System.Collections.Concurrent.ConcurrentDictionary`2.ThrowKeyNullException()

   at System.Collections.Concurrent.ConcurrentDictionary`2.TryRemove(TKey key, TValue& value)

   at Emby.Server.Implementations.LiveTv.EmbyTV.TimerManager.StopTimer(TimerInfo item)

   at Emby.Server.Implementations.LiveTv.EmbyTV.TimerManager.AddOrUpdateSystemTimer(TimerInfo item, Boolean scheduleSystemWakeTimer)

   at Emby.Server.Implementations.LiveTv.EmbyTV.TimerManager.RestartTimers()

   at Emby.Server.Implementations.LiveTv.EmbyTV.EmbyTV.Start()

   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)

--- End of stack trace from previous location where exception was thrown ---

   at System.Threading.ThreadPoolWorkQueue.Dispatch()

System.ArgumentNullException

   at System.Collections.Concurrent.ConcurrentDictionary`2.ThrowKeyNullException()

   at System.Collections.Concurrent.ConcurrentDictionary`2.TryRemove(TKey key, TValue& value)

   at Emby.Server.Implementations.LiveTv.EmbyTV.TimerManager.StopTimer(TimerInfo item)

   at Emby.Server.Implementations.LiveTv.EmbyTV.TimerManager.AddOrUpdateSystemTimer(TimerInfo item, Boolean scheduleSystemWakeTimer)

   at Emby.Server.Implementations.LiveTv.EmbyTV.TimerManager.RestartTimers()

   at Emby.Server.Implementations.LiveTv.EmbyTV.EmbyTV.Start()

   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)

--- End of stack trace from previous location where exception was thrown ---

   at System.Threading.ThreadPoolWorkQueue.Dispatch()

 

 

 

 

embyserver.txt

[Luke 37229]

Try rebooting your machine.

[ddurdle 75]

Same issue after reboot. 

 

It almost looks like it is related to scheduling timers for DVRing.

[ddurdle 75]

if I rename/remove  /var/lib/emby/data/livetv/timers.json, emby starts.

 

I don't touch this file in any ways, so somehow there must be a corrupt entry that was introduced to the file that prevented emby from starting up, encountering an issue while setting one of the timers.  Did you want a copy of this file?