diff --git a/src/Castle.MonoRail.Views.Spark.Tests/Castle.MonoRail.Views.Spark.Tests.csproj b/src/Castle.MonoRail.Views.Spark.Tests/Castle.MonoRail.Views.Spark.Tests.csproj
index e1c8d02d..be485ff8 100644
--- a/src/Castle.MonoRail.Views.Spark.Tests/Castle.MonoRail.Views.Spark.Tests.csproj
+++ b/src/Castle.MonoRail.Views.Spark.Tests/Castle.MonoRail.Views.Spark.Tests.csproj
@@ -54,7 +54,6 @@
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\Castle.MonoRail.Views.Spark\Castle.MonoRail.Views.Spark.csproj" />
-    <ProjectReference Include="..\Spark\Spark.csproj" />
   </ItemGroup>
   <ItemGroup>
     <None Update="MonoRail.Tests.Views\Components\Widget\WithExtraData.spark">
diff --git a/src/Spark.Python.Tests/Spark.Python.Tests.csproj b/src/Spark.Python.Tests/Spark.Python.Tests.csproj
index 0dcf70a0..eb6dc74a 100644
--- a/src/Spark.Python.Tests/Spark.Python.Tests.csproj
+++ b/src/Spark.Python.Tests/Spark.Python.Tests.csproj
@@ -41,7 +41,6 @@
   <ItemGroup>
     <ProjectReference Include="..\Spark.Python\Spark.Python.csproj" />
     <ProjectReference Include="..\Spark.Tests\Spark.Tests.csproj" />
-    <ProjectReference Include="..\Spark\Spark.csproj" />
   </ItemGroup>
 	<ItemGroup>
     <BootstrapperPackage Include="Microsoft.Net.Client.3.5">
diff --git a/src/Spark.Ruby.Tests/Spark.Ruby.Tests.csproj b/src/Spark.Ruby.Tests/Spark.Ruby.Tests.csproj
index 614811cb..552c467e 100644
--- a/src/Spark.Ruby.Tests/Spark.Ruby.Tests.csproj
+++ b/src/Spark.Ruby.Tests/Spark.Ruby.Tests.csproj
@@ -45,7 +45,6 @@
   <ItemGroup>
     <ProjectReference Include="..\Spark.Ruby\Spark.Ruby.csproj" />
     <ProjectReference Include="..\Spark.Tests\Spark.Tests.csproj" />
-    <ProjectReference Include="..\Spark\Spark.csproj" />
   </ItemGroup>
   <ItemGroup>
     <BootstrapperPackage Include="Microsoft.Net.Client.3.5">
diff --git a/src/Spark.Web.Mvc.Pdf.Tests/Spark.Web.Mvc.Pdf.Tests.csproj b/src/Spark.Web.Mvc.Pdf.Tests/Spark.Web.Mvc.Pdf.Tests.csproj
index 4cac2dcc..13a61678 100644
--- a/src/Spark.Web.Mvc.Pdf.Tests/Spark.Web.Mvc.Pdf.Tests.csproj
+++ b/src/Spark.Web.Mvc.Pdf.Tests/Spark.Web.Mvc.Pdf.Tests.csproj
@@ -34,8 +34,6 @@
   <ItemGroup>
     <ProjectReference Include="..\Spark.Web.Mvc.Pdf\Spark.Web.Mvc.Pdf.csproj" />
     <ProjectReference Include="..\Spark.Web.Mvc.Tests\Spark.Web.Mvc.Tests.csproj" />
-    <ProjectReference Include="..\Spark.Web.Mvc\Spark.Web.Mvc.csproj" />
-    <ProjectReference Include="..\Spark\Spark.csproj" />
   </ItemGroup>
   <ItemGroup>
     <BootstrapperPackage Include="Microsoft.Net.Client.3.5">
diff --git a/src/Spark.Web.Mvc.Pdf/Spark.Web.Mvc.Pdf.csproj b/src/Spark.Web.Mvc.Pdf/Spark.Web.Mvc.Pdf.csproj
index 6a9b4b48..282a1613 100644
--- a/src/Spark.Web.Mvc.Pdf/Spark.Web.Mvc.Pdf.csproj
+++ b/src/Spark.Web.Mvc.Pdf/Spark.Web.Mvc.Pdf.csproj
@@ -32,7 +32,6 @@
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\Spark.Web.Mvc\Spark.Web.Mvc.csproj" />
-    <ProjectReference Include="..\Spark\Spark.csproj" />
   </ItemGroup>
   <ItemGroup>
     <None Include="..\SparkKey.snk">
diff --git a/src/Spark.Web.Mvc.Python/Spark.Web.Mvc.Python.csproj b/src/Spark.Web.Mvc.Python/Spark.Web.Mvc.Python.csproj
index 96e1b138..519919df 100644
--- a/src/Spark.Web.Mvc.Python/Spark.Web.Mvc.Python.csproj
+++ b/src/Spark.Web.Mvc.Python/Spark.Web.Mvc.Python.csproj
@@ -34,7 +34,6 @@
   <ItemGroup>
     <ProjectReference Include="..\Spark.Python\Spark.Python.csproj" />
     <ProjectReference Include="..\Spark.Web.Mvc\Spark.Web.Mvc.csproj" />
-    <ProjectReference Include="..\Spark\Spark.csproj" />
   </ItemGroup>
   <ItemGroup>
     <BootstrapperPackage Include="Microsoft.Net.Client.3.5">
diff --git a/src/Spark.Web.Mvc.Ruby.Tests/Spark.Web.Mvc.Ruby.Tests.csproj b/src/Spark.Web.Mvc.Ruby.Tests/Spark.Web.Mvc.Ruby.Tests.csproj
index 2ef0e593..8b0a447a 100644
--- a/src/Spark.Web.Mvc.Ruby.Tests/Spark.Web.Mvc.Ruby.Tests.csproj
+++ b/src/Spark.Web.Mvc.Ruby.Tests/Spark.Web.Mvc.Ruby.Tests.csproj
@@ -30,10 +30,8 @@
     <Reference Include="System.Web" />
   </ItemGroup>
   <ItemGroup>
-    <ProjectReference Include="..\Spark.Ruby\Spark.Ruby.csproj" />
     <PackageReference Include="NUnit" Version="2.7.1" />
     <ProjectReference Include="..\Spark.Web.Mvc.Ruby\Spark.Web.Mvc.Ruby.csproj" />
-    <ProjectReference Include="..\Spark\Spark.csproj" />
   </ItemGroup>
   <ItemGroup>
     <BootstrapperPackage Include="Microsoft.Net.Client.3.5">
diff --git a/src/Spark.Web.Mvc.Ruby/Spark.Web.Mvc.Ruby.csproj b/src/Spark.Web.Mvc.Ruby/Spark.Web.Mvc.Ruby.csproj
index de8724a7..a7c6687c 100644
--- a/src/Spark.Web.Mvc.Ruby/Spark.Web.Mvc.Ruby.csproj
+++ b/src/Spark.Web.Mvc.Ruby/Spark.Web.Mvc.Ruby.csproj
@@ -38,7 +38,6 @@
   <ItemGroup>
     <ProjectReference Include="..\Spark.Ruby\Spark.Ruby.csproj" />
     <ProjectReference Include="..\Spark.Web.Mvc\Spark.Web.Mvc.csproj" />
-    <ProjectReference Include="..\Spark\Spark.csproj" />
   </ItemGroup>
   <ItemGroup>
     <BootstrapperPackage Include="Microsoft.Net.Client.3.5">
diff --git a/src/Spark.Web.Mvc.Tests/Spark.Web.Mvc.Tests.csproj b/src/Spark.Web.Mvc.Tests/Spark.Web.Mvc.Tests.csproj
index 0bc6da49..f16d99c4 100644
--- a/src/Spark.Web.Mvc.Tests/Spark.Web.Mvc.Tests.csproj
+++ b/src/Spark.Web.Mvc.Tests/Spark.Web.Mvc.Tests.csproj
@@ -34,7 +34,6 @@
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\Spark.Web.Mvc\Spark.Web.Mvc.csproj" />
-    <ProjectReference Include="..\Spark\Spark.csproj" />
   </ItemGroup>
   <ItemGroup>
     <None Update="AspNetMvc.Tests.Views\Admin\Home\Index.spark">