diff --git a/src/Umbraco.Core/Attempt.cs b/src/Umbraco.Abstractions/Attempt.cs
similarity index 100%
rename from src/Umbraco.Core/Attempt.cs
rename to src/Umbraco.Abstractions/Attempt.cs
diff --git a/src/Umbraco.Core/AttemptOfTResult.cs b/src/Umbraco.Abstractions/AttemptOfTResult.cs
similarity index 100%
rename from src/Umbraco.Core/AttemptOfTResult.cs
rename to src/Umbraco.Abstractions/AttemptOfTResult.cs
diff --git a/src/Umbraco.Core/AttemptOfTResultTStatus.cs b/src/Umbraco.Abstractions/AttemptOfTResultTStatus.cs
similarity index 100%
rename from src/Umbraco.Core/AttemptOfTResultTStatus.cs
rename to src/Umbraco.Abstractions/AttemptOfTResultTStatus.cs
diff --git a/src/Umbraco.Core/Umbraco.Core.csproj b/src/Umbraco.Core/Umbraco.Core.csproj
index 612eccd2ec..0b7a3c7e6e 100755
--- a/src/Umbraco.Core/Umbraco.Core.csproj
+++ b/src/Umbraco.Core/Umbraco.Core.csproj
@@ -118,9 +118,6 @@
     -->
     <Compile Include="AssemblyExtensions.cs" />
     <Compile Include="AsyncLock.cs" />
-    <Compile Include="Attempt.cs" />
-    <Compile Include="AttemptOfTResult.cs" />
-    <Compile Include="AttemptOfTResultTStatus.cs" />
     <Compile Include="Cache\AppPolicedCacheDictionary.cs" />
     <Compile Include="Compose\AuditEventsComponent.cs" />
     <Compile Include="BindingRedirects.cs" />
diff --git a/src/Umbraco.Examine/Umbraco.Examine.csproj b/src/Umbraco.Examine/Umbraco.Examine.csproj
index 05b209f927..166f2f1025 100644
--- a/src/Umbraco.Examine/Umbraco.Examine.csproj
+++ b/src/Umbraco.Examine/Umbraco.Examine.csproj
@@ -90,6 +90,10 @@
     <Compile Include="ValueSetValidator.cs" />
   </ItemGroup>
   <ItemGroup>
+    <ProjectReference Include="..\Umbraco.Abstractions\Umbraco.Abstractions.csproj">
+      <Project>{29aa69d9-b597-4395-8d42-43b1263c240a}</Project>
+      <Name>Umbraco.Abstractions</Name>
+    </ProjectReference>
     <ProjectReference Include="..\Umbraco.Core\Umbraco.Core.csproj">
       <Project>{31785bc3-256c-4613-b2f5-a1b0bdded8c1}</Project>
       <Name>Umbraco.Core</Name>
diff --git a/src/Umbraco.Tests.Benchmarks/Umbraco.Tests.Benchmarks.csproj b/src/Umbraco.Tests.Benchmarks/Umbraco.Tests.Benchmarks.csproj
index 48d69cf757..b6858bd5cb 100644
--- a/src/Umbraco.Tests.Benchmarks/Umbraco.Tests.Benchmarks.csproj
+++ b/src/Umbraco.Tests.Benchmarks/Umbraco.Tests.Benchmarks.csproj
@@ -66,6 +66,10 @@
     <None Include="App.config" />
   </ItemGroup>
   <ItemGroup>
+    <ProjectReference Include="..\Umbraco.Abstractions\Umbraco.Abstractions.csproj">
+      <Project>{29aa69d9-b597-4395-8d42-43b1263c240a}</Project>
+      <Name>Umbraco.Abstractions</Name>
+    </ProjectReference>
     <ProjectReference Include="..\Umbraco.Core\Umbraco.Core.csproj">
       <Project>{31785bc3-256c-4613-b2f5-a1b0bdded8c1}</Project>
       <Name>Umbraco.Core</Name>
diff --git a/src/Umbraco.Tests/Umbraco.Tests.csproj b/src/Umbraco.Tests/Umbraco.Tests.csproj
index ddd67df6e5..c10858fb6d 100644
--- a/src/Umbraco.Tests/Umbraco.Tests.csproj
+++ b/src/Umbraco.Tests/Umbraco.Tests.csproj
@@ -540,6 +540,10 @@
     </None>
   </ItemGroup>
   <ItemGroup>
+    <ProjectReference Include="..\Umbraco.Abstractions\Umbraco.Abstractions.csproj">
+      <Project>{29aa69d9-b597-4395-8d42-43b1263c240a}</Project>
+      <Name>Umbraco.Abstractions</Name>
+    </ProjectReference>
     <ProjectReference Include="..\Umbraco.Core\Umbraco.Core.csproj">
       <Project>{31785BC3-256C-4613-B2F5-A1B0BDDED8C1}</Project>
       <Name>Umbraco.Core</Name>
diff --git a/src/Umbraco.Web/Umbraco.Web.csproj b/src/Umbraco.Web/Umbraco.Web.csproj
index e565f354c8..7b757cdf3e 100755
--- a/src/Umbraco.Web/Umbraco.Web.csproj
+++ b/src/Umbraco.Web/Umbraco.Web.csproj
@@ -90,6 +90,10 @@
     </PackageReference>
   </ItemGroup>
   <ItemGroup>
+    <ProjectReference Include="..\Umbraco.Abstractions\Umbraco.Abstractions.csproj">
+      <Project>{29aa69d9-b597-4395-8d42-43b1263c240a}</Project>
+      <Name>Umbraco.Abstractions</Name>
+    </ProjectReference>
     <ProjectReference Include="..\Umbraco.Core\Umbraco.Core.csproj">
       <Project>{31785bc3-256c-4613-b2f5-a1b0bdded8c1}</Project>
       <Name>Umbraco.Core</Name>