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I pulled a Unity3D project from git which already has Newtonsoft.Json.dll

When I am trying to build and run, it gives me this following error

    Failed to find a placeholder ('Assets/JsonDotNet/Assemblies/Standalone
/Newtonsoft.Json.dll') for 'Assets/IBMSdkCore/ThirdParty/JsonDotNet

/AOT/Newtonsoft.Json.dll', ensure it exists, or change plugin settings for

'Assets/IBMSdkCore/ThirdParty/JsonDotNet/AOT/Newtonsoft.Json.dll' 

accordingly.

I went through this link

https://issuetracker.unity3d.com/issues/dll-placeholder-values-cannot-be-found-when-dll-is-in-a-local-package

The solution says to configure the placeholder from the project that's referencing a package.

I am not sure how to do that. Can someone please help?

MrRobot9
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    Possible duplicate of [Adding Json.Net to a Unity3D project](https://stackoverflow.com/questions/30398407/adding-json-net-to-a-unity3d-project) – Ruzihm Oct 03 '19 at 19:17
  • @Ruzihm When I tried to add the reference. It says it could not be added, as "Newtonsoft.json" already exists in the project – MrRobot9 Oct 03 '19 at 19:22
  • How do I delete the existing reference to the component? It not even says Installed in Manage NuGet packages. – MrRobot9 Oct 03 '19 at 19:36
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    maybe the answers [here](https://stackoverflow.com/q/36944427/1092820) will help – Ruzihm Oct 03 '19 at 19:38

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