Assembly Conflict with Newtonsoft.Json

.net json.net .net-assembly
Alex picture Alex · Oct 7, 2013 · Viewed 43.4k times · Source

I need to load 2 versions of assembly Newtonsoft.Json version 4.0.8.0 and 4.5.0.0. My current config file :

<dependentAssembly>
        <assemblyIdentity name="Newtonsoft.Json" publicKeyToken="30ad4fe6b2a6aeed" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-4.0.8.0" newVersion="4.0.8.0" />
</dependentAssembly>

but it needs to be: old 4.0.8.0 and new 4.5.0.0

  <dependentAssembly>
        <assemblyIdentity name="Newtonsoft.Json" publicKeyToken="30ad4fe6b2a6aeed" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-4.0.8.0" newVersion="4.5.0.0" />
      </dependentAssembly>

I installed Newtonsoft from Package Console - the latest version - but it gives me an error:

Error 80 Could not load file or assembly 'Newtonsoft.Json, Version=4.5.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)**

Answer

nramirez picture nramirez · Dec 6, 2013

I got this problem today, I found the solution in this link.

Basically update the Newtonsoft.Json package. And register this assembly in the web.config

<dependentAssembly>
    <assemblyIdentity name="Newtonsoft.Json" publicKeyToken="30ad4fe6b2a6aeed" />
    <bindingRedirect oldVersion="0.0.0.0-4.5.0.0" newVersion="5.0.8"/>
</dependentAssembly>

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