diff --git a/src/Microsoft.AspNetCore.All/Microsoft.AspNetCore.All.csproj b/src/Microsoft.AspNetCore.All/Microsoft.AspNetCore.All.csproj
index b6d30491f0..252ff6be55 100644
--- a/src/Microsoft.AspNetCore.All/Microsoft.AspNetCore.All.csproj
+++ b/src/Microsoft.AspNetCore.All/Microsoft.AspNetCore.All.csproj
@@ -24,6 +24,7 @@
 
   <ItemGroup>
     <Content Include="build\$(TargetFramework)\*.props" PackagePath="%(Identity)" />
+    <Content Include="build\$(TargetFramework)\*.targets" PackagePath="%(Identity)" />
     <Content Include="lib\$(TargetFramework)\_._" PackagePath="%(Identity)" />
   </ItemGroup>
 
diff --git a/src/Microsoft.AspNetCore.All/build/netcoreapp2.1/Microsoft.AspNetCore.All.targets b/src/Microsoft.AspNetCore.All/build/netcoreapp2.1/Microsoft.AspNetCore.All.targets
new file mode 100644
index 0000000000..4bc0305379
--- /dev/null
+++ b/src/Microsoft.AspNetCore.All/build/netcoreapp2.1/Microsoft.AspNetCore.All.targets
@@ -0,0 +1,7 @@
+<Project InitialTargets="EnsureTFMCompatibility">
+  <Target Name="EnsureTFMCompatibility">
+    <Error
+      Text="This version of Microsoft.AspNetCore.All is only compatible with the netcoreapp2.1 target framework."
+      Condition="'$(TargetFramework)' != 'netcoreapp2.1'"/>
+  </Target>
+</Project>