I'm working on an EpiServer 8.0 site, and am attempting to incorporate a control that uses the IContentSoftLinkRepository.  But it won't resolve in my solution, and Intellisense fails to provide a resolve option.  My source is derived from these articles:

https://jstemerdink.wordpress.com/2014/04/05/indexing-blocks-with-episerver-search/

https://jstemerdink.wordpress.com/2014/10/11/indexing-blocks-with-episerver-search-revisited/

These using statements are in my class.

using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Reflection;
using System.Text;
using epiTroubleShooting.DataAnnotations; // My test project
using EPiServer;
using EPiServer.Core;
using EPiServer.Core.Html;
using EPiServer.DataAbstraction;
using EPiServer.DataAccess;
using EPiServer.Framework;
using EPiServer.Framework.Initialization;
using EPiServer.Logging;
using EPiServer.Security;
using EPiServer.ServiceLocation;
using EPiServer.SpecializedProperties;

I just need to get IContentSoftLinkRepository to resolve. Thanks for your help.