Getting Error While adding Dll to nav 2009R2

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Posted on by Mahesh U

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Hi Experts,

I want to add Newtonsoft.Json.dll to nav 2009R2. I have copied the .dll file and pasted in classic Add-in's folder and Service Add-in's folder.

Now I am trying to use that .dll as dotnet variable but I am getting error while opening from Global variables see below.

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Microsoft Dynamics NAV Classic
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.NET interop: exception occured, 'Could not load file or assembly 'C:\Program Files (x86)\Microsoft Dynamics NAV\60\Classic\Add-ins\Newtonsoft.Json.dll' or one of its dependencies. This assembly is built by a runtime newer than the currently loaded runtime and cannot be loaded.'.

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OK
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How to solve this please help me

Thank You

Mahesh U

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Amol Salvi 18,698 on at

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RE: Getting Error While adding Dll to nav 2009R2

Have you register the DLL ?

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Yogesh Kulkarni_ 1,762 on at

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RE: Getting Error While adding Dll to nav 2009R2

After copying the .DLL start restaring the NAV Service and the Client.

Else refer below link:

https://navnetwork.wordpress.com/2012/05/30/consume-a-dot-net-class-in-ms-dynamics-nav-2009-sp1-r2/

-Yogesh Kulkarni
Please verify, if you find answer helpful.

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Maneesha on at

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RE: Getting Error While adding Dll to nav 2009R2

Mahesh U ,

You'll have to upgrade the .NET

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RockwithNav 7,706 Super User 2025 Season 2 on at

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RE: Getting Error While adding Dll to nav 2009R2

Seems there's a difference between the framework on which the assembly was made and the one you are trying to execute. Install the same version or the higher version.

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Alexander Ermakov 28,094 on at

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RE: Getting Error While adding Dll to nav 2009R2

Agree with other members. Install the same or higher framework than those for dll created.

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Mahesh U 429 on at

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RE: Getting Error While adding Dll to nav 2009R2

Hi All,

Thanks for your reply.

Where do i upgrade my framework ?in nav?if yes then how to upgrade framework 3.5 to 4.5.

Thank You

Mahesh U

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Suresh Kulla 47,876 Super User 2025 Season 2 on at

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RE: Getting Error While adding Dll to nav 2009R2

On your Server and Client just download 4.5 Framework from Microsoft website and install it.

www.microsoft.com/.../details.aspx

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Mahesh U 429 on at

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RE: Getting Error While adding Dll to nav 2009R2

Hi Suresh,

I am trying to install but it is saying that you already installed .net framework 4.5 or it is a part of operating system.

Thank You

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Community Member 6,120 on at

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RE: Getting Error While adding Dll to nav 2009R2

Hello Mahesh,

Did you get around this problem?

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ShanAbeywicrema 948 on at

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RE: Getting Error While adding Dll to nav 2009R2

Hello Mahesh,

Please refer bellow URL. It might help you.

community.spiceworks.com/.../2044833-microsoft-net-framework-4-5-is-already-a-part-of-this-operating-system

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