Stackexchange.redis: Error finding System.Runtime.CompilerServices.Unsafe when attempting to create connection

[wooderz]

I'm getting this in dotnet core 2.1 (netcoreapp2.1)

Error is:

System.IO.FileLoadException:` Could not load file or assembly 'System.Runtime.CompilerServices.Unsafe, Version=4.0.4.1, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'. Could not find or load a specific file. (Exception from HRESULT: 0x80131621)
File name: 'System.Runtime.CompilerServices.Unsafe, Version=4.0.4.1, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'
at Pipelines.Sockets.Unofficial.Arenas.Arena1..ctor(ArenaOptions options, Allocator1 allocator, Int32 blockSizeBytes)
at Pipelines.Sockets.Unofficial.Arenas.Arena1..ctor(ArenaOptions options, Allocator1 allocator) in C:\Code\Pipelines.Sockets.Unofficial\src\Pipelines.Sockets.Unofficial\Arenas\ArenaT.cs:line 144
at StackExchange.Redis.PhysicalConnection..ctor(PhysicalBridge bridge) in C:\projects\stackexchange-redis\src\StackExchange.Redis\PhysicalConnection.cs:line 1536
at StackExchange.Redis.PhysicalBridge.GetConnection(LogProxy log) in C:\projects\stackexchange-redis\src\StackExchange.Redis\PhysicalBridge.cs:line 1117
at StackExchange.Redis.PhysicalBridge.TryConnect(LogProxy log) in C:\projects\stackexchange-redis\src\StackExchange.Redis\PhysicalBridge.cs:line 133
at StackExchange.Redis.ServerEndPoint.CreateBridge(ConnectionType type, LogProxy log) in C:\projects\stackexchange-redis\src\StackExchange.Redis\ServerEndPoint.cs:line 737
at StackExchange.Redis.ServerEndPoint.GetBridge(ConnectionType type, Boolean create, LogProxy log) in C:\projects\stackexchange-redis\src\StackExchange.Redis\ServerEndPoint.cs:line 165
at StackExchange.Redis.ServerEndPoint.Activate(ConnectionType type, LogProxy log) in C:\projects\stackexchange-redis\src\StackExchange.Redis\ServerEndPoint.cs:line 243
at StackExchange.Redis.ConnectionMultiplexer.ActivateAllServers(LogProxy log) in C:\projects\stackexchange-redis\src\StackExchange.Redis\ConnectionMultiplexer.cs:line 1408
at StackExchange.Redis.ConnectionMultiplexer.ReconfigureAsync(Boolean first, Boolean reconfigureAll, LogProxy log, EndPoint blame, String cause, Boolean publishReconfigure, CommandFlags publishReconfigureFlags) in C:\projects\stackexchange-redis\src\StackExchange.Redis\ConnectionMultiplexer.cs:line 1451

I've added the Nuget package System.Runtime.CompilerServices.Unsafe 4.6.0-preview8.19405.3 but it hasn't helped.

Any suggestions?

[rachit-ranjan16]

Facing the Same Issue.
Have Tried Runtime Binding Redirects but they did not help

[ellenhutchings]

This is an issue for me with v4.7.0 of System.Runtime.CompilerServices.Unsafe also. I can build thanks to the binding redirect but the Connect method seems ignore them?

|System.IO.FileLoadException: Could not load file or assembly 'System.Runtime.CompilerServices.Unsafe, Version=4.7.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)
File name: 'System.Runtime.CompilerServices.Unsafe, Version=4.7.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' ---> System.IO.FileLoadException: Could not load file or assembly 'System.Runtime.CompilerServices.Unsafe, Version=4.0.4.1, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)
File name: 'System.Runtime.CompilerServices.Unsafe, Version=4.0.4.1, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'

Even if I wanted to, I can't install v4.0.4.1 as a package reference to make sure this assembly can be found since if it ever existed it's now unpublished.

[conficient]

Install the 4.7.0 Nuget package for System.Runtime.CompilerServices.Unsafe but in the web.config or app.config enter

      <dependentAssembly>
        <assemblyIdentity name="System.Runtime.CompilerServices.Unsafe" publicKeyToken="b03f5f7f11d50a3a" culture="neutral"/>
        <bindingRedirect oldVersion="0.0.0.0-4.99.99.99" newVersion="4.0.6.0"/>
      </dependentAssembly>

I guess they didn't keep the file versions up with the package version. I used IL DASM to inspect the .DLL to see what version it was.

This was on a .NET Framework 4.7.2 web app

[mgravell]

Just to highlight that we bemoan this topic frequently:
https://twitter.com/Nick_Craver/status/1212401064194068482?s=19 (starts
talking about "unsafe", quickly devolves into a treatise on the broken
assembly loading on netfx)

On Fri, 3 Jan 2020, 16:12 Howard Richards, [e-mail] wrote:

Install the 4.7.0 Nuget package for System.Runtime.CompilerServices.Unsafe
but in the web.config or app.config enter

  <dependentAssembly>
    <assemblyIdentity name="System.Runtime.CompilerServices.Unsafe" publicKeyToken="b03f5f7f11d50a3a" culture="neutral"/>
    <bindingRedirect oldVersion="0.0.0.0-4.99.99.99" newVersion="4.0.6.0"/>
  </dependentAssembly>

I guess they didn't keep the file versions up with the package version. I
used IL DASM
https://docs.microsoft.com/en-us/dotnet/standard/assembly/view-contents
to inspect the .DLL to see what version it was.

This was on a .NET Framework 4.7.2 web app

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[NickCraver]

I've put up a blog post on the background, why this happens, and how to fix it at: https://nickcraver.com/blog/2020/02/11/binding-redirects/ (after many issues like this over the years). It's not specific to SE.Redis at all, but that should help get anyone hitting this sorted :)

[KillingMeNow]

I'm using netcore2.1 webapi , stackexchange 2.2.4(also tried 2.0.513) still get this error, dont now how to solve this.

[jefflafay]

I've put up a blog post on the background, why this happens, and how to fix it at: https://nickcraver.com/blog/2020/02/11/binding-redirects/ (after many issues like this over the years). It's not specific to SE.Redis at all, but that should help get anyone hitting this sorted :)

That blog article mentions fixes for .net framework. I'm on .net core 2.2 and having an issue with this assembly. But I get a very generic message that doesn't mention the version number it's looking for, so I'm not sure what to do. Any pointers?

EDIT
I just added the System.Runtime.CompilerServices.Unsafe v5.0.0 package in this same project and it resolved my issue.