After upgrading from Workflow 7.6 to 8.x. and attempting to use use a Workflow or process that contained the "Code (Script) Component", a error is generated during project validation.
Script Error:The type or namespace name 'Script' does not exist in the namespace 'System.Web' (are you missing an assembly reference?)
Microsoft changed some of the namespace definitions from .NET 3.5 into .NET 4.0.
www.newtonsoft.com/json/help/html/JsonNetVsDotNetSerializers.htm - Replacement serializers for .NET 4.0
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