Updating System.Buffers in .Net Framework project breaks dll-mapping to libsasshost version

[PatrickDahlin]

When updating System.Buffers from the dependency 4.0.0 to any newer version on nuget, the loading of LibSassHost-dll fails because of "missing System.Buffers 4.0.0" dll.

Could not load file or assembly 'System.Buffers, Version=4.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)

[Taritsyn]

Hello, Patrick!

In my opinion, this problem occurs at the level of developer tools: Visual Studio or NuGet package manager. This problem can be solved by manually editing the Web.config file:

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  …
  <runtime>
    …
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      …
      <dependentAssembly>
        <assemblyIdentity name="System.Buffers" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-4.0.3.0" newVersion="4.0.3.0" />
      </dependentAssembly>
      …
    </assemblyBinding>
    …
  </runtime>
  …
</configuration>

Where 4.0.3.0 is the assembly version (not the package).

[PatrickDahlin]

I see, that would explain the differences I saw between machines. Thank you!