Octopus.Client requiring the wrong version of Newtonsoft.Json

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1

Hi,

I’m trying to write a little console application that uses the Octopus.Client library in nuget.org (version 3.1.6, latest in nuget).
This package pulls down Newtonsoft.Json version 6.0.3 as a dependency.

However, when I run the code, it complains by saying that it wants version 7.0.0 of Newtonsoft.Json, which doesn’t exist on nuget.org at all. Here’s the error message:

System.IO.FileLoadException was unhandled
HResult=-2146234304
Message=Could not load file or assembly ‘Newtonsoft.Json, Version=7.0.0.0, 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)
Source=Octopus.Client
FileName=Newtonsoft.Json, Version=7.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed

This is similar to another issue here, but closed more than a year ago (https://github.com/OctopusDeploy/Issues/issues/626). Has this issue come back?

2

Hi William,

Thanks for getting in touch. You’re right, we updated Octopus.Client to require Newtonsoft.Json in Octopus 3.1, but the nuspec file wasn’t updated. I’ve created a GitHub Issue to address this. In the meantime you can work around this by Install-Package Newtonsoft.Json -Version 7.0.1 in your project which should add a BindingRedirect to your *.config file.

The reason that exception mentions Could not load file or assembly 'Newtonsoft.Json, Version=7.0.0.0 is because the JSON.NET assemblies aren’t versioned the same as the packages, which causes some confusion.

Hope that helps!
Mike