Assembly Conflict with Newtonsoft.Json

Question

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 1

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> 

Answer 2

I had the same problem after installing SignalR to my project. First I updated to the latest version of Newtonsoft.Json, and then I add the dependentAssembly to my web.config. But I had to put the value of 6.0.0.0 in the new Version, even if in my packages I have version 6.0.8 declared.

<dependentAssembly>   <assemblyIdentity name="Newtonsoft.Json" publicKeyToken="30ad4fe6b2a6aeed"/>   <bindingRedirect oldVersion="0.0.0.0-4.5.0.0" newVersion="6.0.0.0"/> </dependentAssembly>