Extend Sitefinity CMS data model: Reference the required assemblies
After you Extend Sitefinity CMS data model: Create the class library, you must add the required assemblies that you need for extending the Sitefinity CMS model. You can download the latest required Sitefinity CMS assemblies from Nuget.org. Some assemblies might be available at the official Sitefinity CMS NuGet Repository. Upon package installation, references to the assemblies are automatically added to your project.
Requires system assemblies
The CustomTypes project requires the following system assemblies:
SystemSystem.Runtime.SerializationSystem.WebSystem.Web.ApplicationServicesSystem.Web.Extensions
Required Sitefinity CMS NuGet packages
In addition to system assemblies, make sure your project refers to the following Sitefinity CMS NuGet packages:
Telerik.Sitefinity.Core.nupkgTelerik.DataAccess.Core.nupkgTelerik.DataAccess.Fluent.nupkg
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