diff --git a/src/Microsoft.AspNet.Mvc.Razor/Diagnostics/ICompilationException.cs b/src/Microsoft.AspNet.Mvc.Razor/Diagnostics/ICompilationException.cs
deleted file mode 100644
index ba9102a35b..0000000000
--- a/src/Microsoft.AspNet.Mvc.Razor/Diagnostics/ICompilationException.cs
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
-// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
-
-using System.Collections.Generic;
-using Microsoft.Framework.Runtime;
-
-namespace Microsoft.AspNet.Diagnostics
-{
-    /// <summary>
-    /// Specifies the contract for an exception representing compilation failure.
-    /// </summary>
-    [AssemblyNeutral]
-    public interface ICompilationException
-    {
-        /// <summary>
-        /// Gets a sequence of <see cref="ICompilationFailure"/> with compilation failures.
-        /// </summary>
-        IEnumerable<ICompilationFailure> CompilationFailures { get; }
-    }
-}
\ No newline at end of file
diff --git a/src/Microsoft.AspNet.Mvc.Razor/Diagnostics/ICompilationFailure.cs b/src/Microsoft.AspNet.Mvc.Razor/Diagnostics/ICompilationFailure.cs
deleted file mode 100644
index bf16458fc6..0000000000
--- a/src/Microsoft.AspNet.Mvc.Razor/Diagnostics/ICompilationFailure.cs
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
-// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
-
-using System.Collections.Generic;
-using Microsoft.Framework.Runtime;
-
-namespace Microsoft.AspNet.Diagnostics
-{
-    /// <summary>
-    /// Specifies the contract for a file that fails compilation.
-    /// </summary>
-    [AssemblyNeutral]
-    public interface ICompilationFailure
-    {
-        /// <summary>
-        /// Path of the file that produced the compilation exception.
-        /// </summary>
-        string SourceFilePath { get; }
-
-        /// <summary>
-        /// Contents of the file.
-        /// </summary>
-        string SourceFileContent { get; }
-
-        /// <summary>
-        /// Contents being compiled.
-        /// </summary>
-        /// <remarks>
-        /// For templated files, the <see cref="SourceFileContent"/> represents the original content and
-        /// <see cref="CompiledContent"/> represents the transformed content. This property can be null if
-        /// the exception is encountered during transformation.
-        /// </remarks>
-        string CompiledContent { get; }
-
-        /// <summary>
-        /// Gets a sequence of <see cref="ICompilationMessage"/> produced as a result of compilation.
-        /// </summary>
-        IEnumerable<ICompilationMessage> Messages { get; }
-    }
-}
\ No newline at end of file
diff --git a/src/Microsoft.AspNet.Mvc.Razor/Diagnostics/ICompilationMessage.cs b/src/Microsoft.AspNet.Mvc.Razor/Diagnostics/ICompilationMessage.cs
deleted file mode 100644
index ed3ca5fed8..0000000000
--- a/src/Microsoft.AspNet.Mvc.Razor/Diagnostics/ICompilationMessage.cs
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
-// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
-
-using Microsoft.Framework.Runtime;
-
-namespace Microsoft.AspNet.Diagnostics
-{
-    /// <summary>
-    /// Specifies the contract for diagnostic messages produced as result of compiling an instance
-    /// of <see cref="ICompilationFailure"/>.
-    /// </summary>
-    [AssemblyNeutral]
-    public interface ICompilationMessage
-    {
-        /// <summary>
-        /// Gets the error message.
-        /// </summary>
-        string Message { get; }
-
-        /// <summary>
-        /// Gets the zero-based line index for the start of the compilation error.
-        /// </summary>
-        int StartLine { get; }
-
-        /// <summary>
-        /// Gets the zero-based column index for the start of the compilation error.
-        /// </summary>
-        int StartColumn { get; }
-
-        /// <summary>
-        /// Gets the zero-based line index for the end of the compilation error.
-        /// </summary>
-        int EndLine { get; }
-
-        /// <summary>
-        /// Gets the zero-based column index for the end of the compilation error.
-        /// </summary>
-        int EndColumn { get; }
-    }
-}
\ No newline at end of file
diff --git a/src/Microsoft.AspNet.Mvc.Razor/IBeforeCompileContext.cs b/src/Microsoft.AspNet.Mvc.Razor/IBeforeCompileContext.cs
deleted file mode 100644
index b7a5979fd0..0000000000
--- a/src/Microsoft.AspNet.Mvc.Razor/IBeforeCompileContext.cs
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
-// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
-
-using System.Collections.Generic;
-using Microsoft.CodeAnalysis;
-using Microsoft.CodeAnalysis.CSharp;
-
-namespace Microsoft.Framework.Runtime
-{
-    [AssemblyNeutral]
-    public interface IBeforeCompileContext
-    {
-        CSharpCompilation CSharpCompilation { get; set; }
-
-        IList<ResourceDescription> Resources { get; }
-
-        IList<Diagnostic> Diagnostics { get; }
-    }
-}
diff --git a/src/Microsoft.AspNet.Mvc.Razor/Services/IRoslynMetadataReference.cs b/src/Microsoft.AspNet.Mvc.Razor/Services/IRoslynMetadataReference.cs
deleted file mode 100644
index b9c9f152f8..0000000000
--- a/src/Microsoft.AspNet.Mvc.Razor/Services/IRoslynMetadataReference.cs
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
-// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
-
-using Microsoft.CodeAnalysis;
-
-namespace Microsoft.Framework.Runtime
-{
-    [AssemblyNeutral]
-    public interface IRoslynMetadataReference : IMetadataReference
-    {
-        MetadataReference MetadataReference { get; }
-    }
-}
\ No newline at end of file
diff --git a/src/Microsoft.AspNet.Mvc.Razor/project.json b/src/Microsoft.AspNet.Mvc.Razor/project.json
index c3e5bff9cf..303b1e02e8 100644
--- a/src/Microsoft.AspNet.Mvc.Razor/project.json
+++ b/src/Microsoft.AspNet.Mvc.Razor/project.json
@@ -5,12 +5,14 @@
         "warningsAsErrors": false
     },
     "dependencies": {
+        "Microsoft.AspNet.Diagnostics.Interfaces": "1.0.0-*",
         "Microsoft.AspNet.Mvc.Common": { "version": "6.0.0-*", "type": "build" },
         "Microsoft.AspNet.Mvc.Core": "6.0.0-*",
         "Microsoft.AspNet.Mvc.Razor.Host": "6.0.0-*",
         "Microsoft.AspNet.PageExecutionInstrumentation" : "1.0.0-*",
         "Microsoft.CodeAnalysis.CSharp": "1.0.0-rc1-*",
-        "Microsoft.Framework.Runtime.Roslyn.Common": "1.0.0-*"
+        "Microsoft.Framework.Runtime.Roslyn.Common": "1.0.0-*",
+        "Microsoft.Framework.Runtime.Roslyn.Interfaces": "1.0.0-*"
     },
     "frameworks": {
         "aspnet50": {
diff --git a/src/Microsoft.AspNet.Mvc/IAfterCompileContext.cs b/src/Microsoft.AspNet.Mvc/IAfterCompileContext.cs
deleted file mode 100644
index b5a5b296c1..0000000000
--- a/src/Microsoft.AspNet.Mvc/IAfterCompileContext.cs
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
-// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
-
-using System.Collections.Generic;
-using Microsoft.CodeAnalysis;
-using Microsoft.CodeAnalysis.CSharp;
-
-namespace Microsoft.Framework.Runtime
-{
-    [AssemblyNeutral]
-    public interface IAfterCompileContext
-    {
-        CSharpCompilation CSharpCompilation { get; set; }
-
-        IList<Diagnostic> Diagnostics { get; }
-    }
-}
\ No newline at end of file
diff --git a/src/Microsoft.AspNet.Mvc/ICompileModule.cs b/src/Microsoft.AspNet.Mvc/ICompileModule.cs
deleted file mode 100644
index 2ae33db743..0000000000
--- a/src/Microsoft.AspNet.Mvc/ICompileModule.cs
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
-// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
-
-namespace Microsoft.Framework.Runtime
-{
-    [AssemblyNeutral]
-    public interface ICompileModule
-    {
-        void BeforeCompile(IBeforeCompileContext context);
-
-        void AfterCompile(IAfterCompileContext context);
-    }
-}
\ No newline at end of file