Newtonsoft.Json already has a dependency defined for Microsoft.CSharp

Error : Newtonsoft.Json already has a dependency defined for Microsoft.CSharp

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Could not load type 'System.Collections.Generic.IReadOnlyDictionary

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'Newtonsoft.Json' already has a dependency defined for 'Microsoft.CSharp'

Solution:

PM> Install-Package Newtonsoft.Json -Version 9.0.1

Note: I fixed the issue by installing the older version of Newtonsoft Json

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