mono mediabrowser

r/data/authentication.db
Info, App, FFMpeg: ffmpeg
Info, App, FFProbe: ffprobe
Error, Main, UnhandledException
        One or more errors occurred
        System.AggregateException
          at System.Threading.Tasks.Task.WaitAll (System.Threading.Tasks.Task[] tasks, Int32 millisecondsTimeout, CancellationToken cancellationToken) [0x00000] in <filename unknown>:0
          at System.Threading.Tasks.Task.WaitAll (System.Threading.Tasks.Task[] tasks) [0x00000] in <filename unknown>:0
          at MediaBrowser.Server.Mono.MainClass.RunApplication (MediaBrowser.Server.Implementations.ServerApplicationPaths appPaths, ILogManager logManager, MediaBrowser.Server.Startup.Common.StartupOptions options) [0x00000] in <filename unknown>:0
          at MediaBrowser.Server.Mono.MainClass.Main (System.String[] args) [0x00000] in <filename unknown>:0
        InnerException: System.IO.FileNotFoundException
        Could not find file "ffmpeg".
          at System.IO.FileInfo.get_Length () [0x00000] in <filename unknown>:0
          at (wrapper remoting-invoke-with-check) System.IO.FileInfo:get_Length ()
          at MediaBrowser.Server.Startup.Common.FFMpeg.FFmpegValidator.Validate (MediaBrowser.Server.Startup.Common.FFMpeg.FFMpegInfo info) [0x00000] in <filename unknown>:0
          at MediaBrowser.Server.Startup.Common.ApplicationHost+<RegisterMediaEncoder>d__39.MoveNext () [0x00000] in <filename unknown>:0
        --- End of stack trace from previous location where exception was thrown ---
          at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x00000] in <filename unknown>:0
          at System.Runtime.CompilerServices.ConfiguredTaskAwaitable+ConfiguredTaskAwaiter.GetResult () [0x00000] in <filename unknown>:0
          at MediaBrowser.Server.Startup.Common.ApplicationHost+<RegisterResources>d__22.MoveNext () [0x00000] in <filename unknown>:0
        --- End of stack trace from previous location where exception was thrown ---
          at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x00000] in <filename unknown>:0
          at System.Runtime.CompilerServices.ConfiguredTaskAwaitable+ConfiguredTaskAwaiter.GetResult () [0x00000] in <filename unknown>:0
          at MediaBrowser.Common.Implementations.BaseApplicationHost`1+<Init>d__4[MediaBrowser.Server.Implementations.ServerApplicationPaths].MoveNext () [0x00000] in <filename unknown>:0
        --- End of stack trace from previous location where exception was thrown ---
          at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x00000] in <filename unknown>:0
          at System.Runtime.CompilerServices.ConfiguredTaskAwaitable+ConfiguredTaskAwaiter.GetResult () [0x00000] in <filename unknown>:0
          at MediaBrowser.Server.Startup.Common.ApplicationHost+<Init>d__6.MoveNext () [0x00000] in <filename unknown>:0

UnhandledException
One or more errors occurred
System.AggregateException
  at System.Threading.Tasks.Task.WaitAll (System.Threading.Tasks.Task[] tasks, Int32 millisecondsTimeout, CancellationToken cancellationToken) [0x00000] in <filename unknown>:0
  at System.Threading.Tasks.Task.WaitAll (System.Threading.Tasks.Task[] tasks) [0x00000] in <filename unknown>:0
  at MediaBrowser.Server.Mono.MainClass.RunApplication (MediaBrowser.Server.Implementations.ServerApplicationPaths appPaths, ILogManager logManager, MediaBrowser.Server.Startup.Common.StartupOptions options) [0x00000] in <filename unknown>:0
  at MediaBrowser.Server.Mono.MainClass.Main (System.String[] args) [0x00000] in <filename unknown>:0
InnerException: System.IO.FileNotFoundException
Could not find file "ffmpeg".
  at System.IO.FileInfo.get_Length () [0x00000] in <filename unknown>:0
  at (wrapper remoting-invoke-with-check) System.IO.FileInfo:get_Length ()
  at MediaBrowser.Server.Startup.Common.FFMpeg.FFmpegValidator.Validate (MediaBrowser.Server.Startup.Common.FFMpeg.FFMpegInfo info) [0x00000] in <filename unknown>:0
  at MediaBrowser.Server.Startup.Common.ApplicationHost+<RegisterMediaEncoder>d__39.MoveNext () [0x00000] in <filename unknown>:0
--- End of stack trace from previous location where exception was thrown ---
  at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x00000] in <filename unknown>:0
  at System.Runtime.CompilerServices.ConfiguredTaskAwaitable+ConfiguredTaskAwaiter.GetResult () [0x00000] in <filename unknown>:0
  at MediaBrowser.Server.Startup.Common.ApplicationHost+<RegisterResources>d__22.MoveNext () [0x00000] in <filename unknown>:0
--- End of stack trace from previous location where exception was thrown ---
  at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x00000] in <filename unknown>:0
  at System.Runtime.CompilerServices.ConfiguredTaskAwaitable+ConfiguredTaskAwaiter.GetResult () [0x00000] in <filename unknown>:0
  at MediaBrowser.Common.Implementations.BaseApplicationHost`1+<Init>d__4[MediaBrowser.Server.Implementations.ServerApplicationPaths].MoveNext () [0x00000] in <filename unknown>:0
--- End of stack trace from previous location where exception was thrown ---
  at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x00000] in <filename unknown>:0
  at System.Runtime.CompilerServices.ConfiguredTaskAwaitable+ConfiguredTaskAwaiter.GetResult () [0x00000] in <filename unknown>:0
  at MediaBrowser.Server.Startup.Common.ApplicationHost+<Init>d__6.MoveNext () [0x00000] in <filename unknown>:0