Newtonsoft.Json and Microsoft.CSharp.dll

Question

I'm trying to do some json deserialization on windows phone 7, so I decided to use Newtonsoft.json library, because it seems to support this platform also. Unfortunatelly I'm stuck with these errors:

Error 1 Predefined type 'Microsoft.CSharp.RuntimeBinder.Binder' is not defined or imported

and

Error 4 One or more types required to compile a dynamic expression cannot be found. Are you missing references to Microsoft.CSharp.dll and System.Core.dll?

I found out that I can't just add a reference to Microsoft.CSharp.dll (VS tells me that it wasn't built with Windows Phone runtime) in my project, so what else can be done? I used newtonsoft lib from portable+net40+sl4+wp7+wp8 and then from sl4-windowsphone71 folders in the library. Nothing works.

Is it a new project? are you running Visual Studio 2012 with Update 4? also, make sure Nuget itself is up to date. — Neil Turner
– Neil Turner, Commented Nov 18, 2013 at 20:51
Well, it's a new project for me :). I'm using VS 2010, and nuget 2.7. — Marek M.
– Marek M., Commented Nov 18, 2013 at 20:55

Mick · Accepted Answer · 2014-02-12 03:30:57Z

2

This error relates to dynamic types. Try using the JSON.NET generic methods, with which you specify the deserialization type, instead of the method which returns a dynamic type.

i.e. Don't do this...

http://thewayofcode.wordpress.com/2012/09/18/c-dynamic-object-and-json-serialization-with-json-net/

Do this...

http://www.hanselman.com/blog/NuGetPackageOfTheWeek4DeserializingJSONWithJsonNET.aspx

answered Feb 12, 2014 at 3:30

Mick

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