diff --git a/build/common.props b/build/common.props
index ddbb7dacc6..de7050efe5 100644
--- a/build/common.props
+++ b/build/common.props
@@ -11,6 +11,7 @@
     <SignAssembly>true</SignAssembly>
     <PublicSign Condition="'$(OS)' != 'Windows_NT'">true</PublicSign>
     <VersionSuffix Condition="'$(VersionSuffix)'!='' AND '$(BuildNumber)' != ''">$(VersionSuffix)-$(BuildNumber)</VersionSuffix>
+    <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/src/Microsoft.AspNetCore.Razor.Language/Microsoft.AspNetCore.Razor.Language.csproj b/src/Microsoft.AspNetCore.Razor.Language/Microsoft.AspNetCore.Razor.Language.csproj
index 5f22e929dd..9c5cadb4c9 100644
--- a/src/Microsoft.AspNetCore.Razor.Language/Microsoft.AspNetCore.Razor.Language.csproj
+++ b/src/Microsoft.AspNetCore.Razor.Language/Microsoft.AspNetCore.Razor.Language.csproj
@@ -14,8 +14,4 @@
     <PackageReference Include="Microsoft.Extensions.HashCodeCombiner.Sources" Version="$(AspNetCoreVersion)" PrivateAssets="All" />
   </ItemGroup>
 
-  <ItemGroup Condition="'$(TargetFrameworkIdentifier)'=='.NETFramework'">
-    <PackageReference Include="System.ValueTuple" Version="$(CoreFxVersion)" />
-  </ItemGroup>
-
 </Project>
diff --git a/src/Microsoft.VisualStudio.LanguageServices.Razor/Microsoft.VisualStudio.LanguageServices.Razor.csproj b/src/Microsoft.VisualStudio.LanguageServices.Razor/Microsoft.VisualStudio.LanguageServices.Razor.csproj
index fe8f0c0820..a83fc69804 100644
--- a/src/Microsoft.VisualStudio.LanguageServices.Razor/Microsoft.VisualStudio.LanguageServices.Razor.csproj
+++ b/src/Microsoft.VisualStudio.LanguageServices.Razor/Microsoft.VisualStudio.LanguageServices.Razor.csproj
@@ -25,7 +25,7 @@
     <PackageReference Include="Microsoft.VisualStudio.LanguageServices" Version="$(RoslynDevVersion)" />
     <PackageReference Include="Microsoft.VisualStudio.LanguageServices.Razor.RemoteClient" Version="$(RoslynDevVersion)" />
 
-    <!-- All of the VS 'interop' assemblies have permandently fixed versions. -->
+    <!-- All of the VS 'interop' assemblies have permanently fixed versions. -->
     <PackageReference Include="Microsoft.VisualStudio.OLE.Interop" Version="7.10.6070" />
     <PackageReference Include="Microsoft.VisualStudio.Shell.15.0" Version="$(VsShellVersion)" />
     <PackageReference Include="Microsoft.VisualStudio.Shell.Interop" Version="7.10.6071" />