Plugins fail to load with "System.Runtime.InteropServices.COMException (0x8007054F): An internal error occurred"

[yanofsky 1]

Hi, I noticed when trying to install OpenSubtitles that plugin loading seems completely broken for me. Error seems to be a generic COMException which I don't know how to decipher. Here is relevant debug log:

[...]
2018-12-24 00:58:14.455 Info App: Loading assemblies
2018-12-24 00:58:14.676 Info App: File /var/lib/emby/ProgramData-Server/plugins/Emby.Server.CinemaMode.dll has version 1.0.2.0
2018-12-24 00:58:14.713 Info App: File /nix/store/qdismmqwn5h4lhdpbxpicx4fv06h2gbb-emby-3.5.3.0/opt/emby-server/plugins/Emby.Server.CinemaMode.dll has version 1.0.2.0
2018-12-24 00:58:14.738 Info App: File /var/lib/emby/ProgramData-Server/plugins/IMVDb.dll has version 1.0.1.0
2018-12-24 00:58:14.760 Info App: File /nix/store/qdismmqwn5h4lhdpbxpicx4fv06h2gbb-emby-3.5.3.0/opt/emby-server/plugins/IMVDb.dll has version 1.0.1.0
2018-12-24 00:58:14.760 Info App: File /var/lib/emby/ProgramData-Server/plugins/OpenSubtitles.dll has version 1.0.2.0
2018-12-24 00:58:14.762 Info App: File /nix/store/qdismmqwn5h4lhdpbxpicx4fv06h2gbb-emby-3.5.3.0/opt/emby-server/plugins/OpenSubtitles.dll has version 1.0.2.0
2018-12-24 00:58:14.779 Error App: Error loading assembly /var/lib/emby/ProgramData-Server/plugins/Emby.Server.CinemaMode.dll
    *** Error Report ***
    Version: 3.5.3.0
    Command line: /nix/store/qdismmqwn5h4lhdpbxpicx4fv06h2gbb-emby-3.5.3.0/opt/emby-server/EmbyServer.dll -ffmpeg /nix/store/jsr6j55snk88ia722ksl64aphlbpzhmh-ffmpeg-3.4.4-bin/bin/ffmpeg -ffprobe /nix/store/jsr6j55snk88ia722ksl64aphlbpzhmh-ffmpeg-3.4.4-bin/bin/ffprobe -programdata /var/lib/emby/ProgramData-Server
    Operating system: Unix 4.14.79.0
    64-Bit OS: True
    64-Bit Process: True
    User Interactive: True
    Processor count: 1
    Program data path: /var/lib/emby/ProgramData-Server
    Application directory: /nix/store/qdismmqwn5h4lhdpbxpicx4fv06h2gbb-emby-3.5.3.0/opt/emby-server
    System.Runtime.InteropServices.COMException (0x8007054F): An internal error occurred.
     (Exception from HRESULT: 0x8007054F)
       at System.Runtime.Loader.AssemblyLoadContext.LoadFromStream(IntPtr ptrNativeAssemblyLoadContext, IntPtr ptrAssemblyArray, Int32 iAssemblyArrayLen, IntPtr ptrSymbols, Int32 iSymbolArrayLen, ObjectHandleOnStack retAssembly)
       at System.Runtime.Loader.AssemblyLoadContext.LoadFromStream(Stream assembly, Stream assemblySymbols)
       at System.Reflection.Assembly.Load(Byte[] rawAssembly)
       at Emby.Server.Implementations.ApplicationHost.LoadAssembly(String file)
    System.Runtime.InteropServices.COMException
       at System.Runtime.Loader.AssemblyLoadContext.LoadFromStream(IntPtr ptrNativeAssemblyLoadContext, IntPtr ptrAssemblyArray, Int32 iAssemblyArrayLen, IntPtr ptrSymbols, Int32 iSymbolArrayLen, ObjectHandleOnStack retAssembly)
       at System.Runtime.Loader.AssemblyLoadContext.LoadFromStream(Stream assembly, Stream assemblySymbols)
       at System.Reflection.Assembly.Load(Byte[] rawAssembly)
       at Emby.Server.Implementations.ApplicationHost.LoadAssembly(String file)
    
2018-12-24 00:58:14.780 Error App: Error loading assembly /var/lib/emby/ProgramData-Server/plugins/IMVDb.dll
    *** Error Report ***
    Version: 3.5.3.0
    Command line: /nix/store/qdismmqwn5h4lhdpbxpicx4fv06h2gbb-emby-3.5.3.0/opt/emby-server/EmbyServer.dll -ffmpeg /nix/store/jsr6j55snk88ia722ksl64aphlbpzhmh-ffmpeg-3.4.4-bin/bin/ffmpeg -ffprobe /nix/store/jsr6j55snk88ia722ksl64aphlbpzhmh-ffmpeg-3.4.4-bin/bin/ffprobe -programdata /var/lib/emby/ProgramData-Server
    Operating system: Unix 4.14.79.0
    64-Bit OS: True
    64-Bit Process: True
    User Interactive: True
    Processor count: 1
    Program data path: /var/lib/emby/ProgramData-Server
    Application directory: /nix/store/qdismmqwn5h4lhdpbxpicx4fv06h2gbb-emby-3.5.3.0/opt/emby-server
    System.Runtime.InteropServices.COMException (0x8007054F): An internal error occurred.
     (Exception from HRESULT: 0x8007054F)
       at System.Runtime.Loader.AssemblyLoadContext.LoadFromStream(IntPtr ptrNativeAssemblyLoadContext, IntPtr ptrAssemblyArray, Int32 iAssemblyArrayLen, IntPtr ptrSymbols, Int32 iSymbolArrayLen, ObjectHandleOnStack retAssembly)
       at System.Runtime.Loader.AssemblyLoadContext.LoadFromStream(Stream assembly, Stream assemblySymbols)
       at System.Reflection.Assembly.Load(Byte[] rawAssembly)
       at Emby.Server.Implementations.ApplicationHost.LoadAssembly(String file)
    System.Runtime.InteropServices.COMException
       at System.Runtime.Loader.AssemblyLoadContext.LoadFromStream(IntPtr ptrNativeAssemblyLoadContext, IntPtr ptrAssemblyArray, Int32 iAssemblyArrayLen, IntPtr ptrSymbols, Int32 iSymbolArrayLen, ObjectHandleOnStack retAssembly)
       at System.Runtime.Loader.AssemblyLoadContext.LoadFromStream(Stream assembly, Stream assemblySymbols)
       at System.Reflection.Assembly.Load(Byte[] rawAssembly)
       at Emby.Server.Implementations.ApplicationHost.LoadAssembly(String file)
    
2018-12-24 00:58:14.780 Error App: Error loading assembly /var/lib/emby/ProgramData-Server/plugins/OpenSubtitles.dll
    *** Error Report ***
    Version: 3.5.3.0
    Command line: /nix/store/qdismmqwn5h4lhdpbxpicx4fv06h2gbb-emby-3.5.3.0/opt/emby-server/EmbyServer.dll -ffmpeg /nix/store/jsr6j55snk88ia722ksl64aphlbpzhmh-ffmpeg-3.4.4-bin/bin/ffmpeg -ffprobe /nix/store/jsr6j55snk88ia722ksl64aphlbpzhmh-ffmpeg-3.4.4-bin/bin/ffprobe -programdata /var/lib/emby/ProgramData-Server
    Operating system: Unix 4.14.79.0
    64-Bit OS: True
    64-Bit Process: True
    User Interactive: True
    Processor count: 1
    Program data path: /var/lib/emby/ProgramData-Server
    Application directory: /nix/store/qdismmqwn5h4lhdpbxpicx4fv06h2gbb-emby-3.5.3.0/opt/emby-server
    System.Runtime.InteropServices.COMException (0x8007054F): An internal error occurred.
     (Exception from HRESULT: 0x8007054F)
       at System.Runtime.Loader.AssemblyLoadContext.LoadFromStream(IntPtr ptrNativeAssemblyLoadContext, IntPtr ptrAssemblyArray, Int32 iAssemblyArrayLen, IntPtr ptrSymbols, Int32 iSymbolArrayLen, ObjectHandleOnStack retAssembly)
       at System.Runtime.Loader.AssemblyLoadContext.LoadFromStream(Stream assembly, Stream assemblySymbols)
       at System.Reflection.Assembly.Load(Byte[] rawAssembly)
       at Emby.Server.Implementations.ApplicationHost.LoadAssembly(String file)
    System.Runtime.InteropServices.COMException
       at System.Runtime.Loader.AssemblyLoadContext.LoadFromStream(IntPtr ptrNativeAssemblyLoadContext, IntPtr ptrAssemblyArray, Int32 iAssemblyArrayLen, IntPtr ptrSymbols, Int32 iSymbolArrayLen, ObjectHandleOnStack retAssembly)
       at System.Runtime.Loader.AssemblyLoadContext.LoadFromStream(Stream assembly, Stream assemblySymbols)
       at System.Reflection.Assembly.Load(Byte[] rawAssembly)
       at Emby.Server.Implementations.ApplicationHost.LoadAssembly(String file)
    
2018-12-24 00:58:14.782 Info App: Loading MediaBrowser.Api, Version=3.5.3.0, Culture=neutral, PublicKeyToken=null
2018-12-24 00:58:14.782 Info App: Loading MediaBrowser.WebDashboard, Version=3.5.3.0, Culture=neutral, PublicKeyToken=null
2018-12-24 00:58:14.782 Info App: Loading MediaBrowser.Model, Version=3.5.3.0, Culture=neutral, PublicKeyToken=null
2018-12-24 00:58:14.782 Info App: Loading MediaBrowser.Common, Version=3.5.3.0, Culture=neutral, PublicKeyToken=null
[...]

[Luke 36991]

Hi there, can you please attach the complete emby server log? Thanks.

[yanofsky 1]

I posted the complete log at: https://gist.github.com/ryanofsky/e4ed2f8851460d62c13cd4aa7f657e2a, since I didn't see an option to attach files here.

 

Thanks for your help!

[yanofsky 1]

Here is a newer server log: https://gist.github.com/ryanofsky/e0d1333b9badb47222a6fc28fb9603f4

 

I noticed the previous log had "NetworkInformationException" errors caused by a bad sysfs mount. They seem to be unrelated and are gone after restarting. Unfortunately the "COMException (0x8007054F): An internal error occurred" errors remain and still no plugins are loaded.

[Luke 36991]

What platform and install package is this? How did you install emby server?

[yanofsky 1]

Issue is resolved now. Strangely, this turned out to be caused by bad permissions on /dev/zero:

# ls -al /dev/zero
crw-r--r-- 1 root root 1, 5 Nov 28 23:36 /dev/zero

which I found by running emby under strace and seeing:

openat(AT_FDCWD, "/dev/zero", O_RDWR|O_CLOEXEC) = -1 EACCES (Permission denied)

after it read each plugin DLL file. Fix was simple:

# chmod a+rw /dev/zero

[yanofsky 1]

 

What platform and install package is this? How did you install emby server?

 

I'm using the NixOS 3.5.3.0 package from https://github.com/NixOS/nixpkgs-channels/blob/nixos-unstable/pkgs/servers/emby/default.nix. It's working well now but thanks for your help, and thank you for all your work on Emby!

[Luke 36991]

Thanks for the feedback !