diff --git a/src/Orchard.Core.Tests/Orchard.Core.Tests.csproj b/src/Orchard.Core.Tests/Orchard.Core.Tests.csproj
index 220713287..ce428c7a2 100644
--- a/src/Orchard.Core.Tests/Orchard.Core.Tests.csproj
+++ b/src/Orchard.Core.Tests/Orchard.Core.Tests.csproj
@@ -77,9 +77,17 @@
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-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\lib\nunit\nunit.framework.dll</HintPath>
+    <Reference Include="nunit.framework, Version=2.5.10.11092, Culture=neutral, PublicKeyToken=96d09a1eb7f44a77, processorArchitecture=MSIL">
+      <HintPath>..\packages\NUnit.2.5.10.11092\lib\nunit.framework.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="nunit.mocks, Version=2.5.10.11092, Culture=neutral, PublicKeyToken=96d09a1eb7f44a77, processorArchitecture=MSIL">
+      <HintPath>..\packages\NUnit.2.5.10.11092\lib\nunit.mocks.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="pnunit.framework, Version=1.0.4109.34242, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>..\packages\NUnit.2.5.10.11092\lib\pnunit.framework.dll</HintPath>
+      <Private>True</Private>
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     <Reference Include="System.Core">
@@ -156,6 +164,9 @@
   <ItemGroup>
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   </ItemGroup>
+  <ItemGroup>
+    <None Include="packages.config" />
+  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
        Other similar extension points exist, see Microsoft.Common.targets.
diff --git a/src/Orchard.Core.Tests/packages.config b/src/Orchard.Core.Tests/packages.config
new file mode 100644
index 000000000..4c04439e8
--- /dev/null
+++ b/src/Orchard.Core.Tests/packages.config
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="NUnit" version="2.5.10.11092" targetFramework="net451" />
+</packages>
\ No newline at end of file
diff --git a/src/Orchard.Profile/Orchard.Profile.csproj b/src/Orchard.Profile/Orchard.Profile.csproj
index 46dbbe056..5d3f52a83 100644
--- a/src/Orchard.Profile/Orchard.Profile.csproj
+++ b/src/Orchard.Profile/Orchard.Profile.csproj
@@ -56,9 +56,17 @@
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   <ItemGroup>
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-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\lib\nunit\nunit.framework.dll</HintPath>
+    <Reference Include="nunit.framework, Version=2.5.10.11092, Culture=neutral, PublicKeyToken=96d09a1eb7f44a77, processorArchitecture=MSIL">
+      <HintPath>..\packages\NUnit.2.5.10.11092\lib\nunit.framework.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="nunit.mocks, Version=2.5.10.11092, Culture=neutral, PublicKeyToken=96d09a1eb7f44a77, processorArchitecture=MSIL">
+      <HintPath>..\packages\NUnit.2.5.10.11092\lib\nunit.mocks.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="pnunit.framework, Version=1.0.4109.34242, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>..\packages\NUnit.2.5.10.11092\lib\pnunit.framework.dll</HintPath>
+      <Private>True</Private>
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.Core">
@@ -88,6 +96,7 @@
     </Compile>
   </ItemGroup>
   <ItemGroup>
+    <None Include="packages.config" />
     <None Include="Tests\Profiling.feature">
       <Generator>SpecFlowSingleFileGenerator</Generator>
       <LastGenOutput>Profiling.feature.cs</LastGenOutput>
diff --git a/src/Orchard.Profile/packages.config b/src/Orchard.Profile/packages.config
new file mode 100644
index 000000000..4c04439e8
--- /dev/null
+++ b/src/Orchard.Profile/packages.config
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="NUnit" version="2.5.10.11092" targetFramework="net451" />
+</packages>
\ No newline at end of file
diff --git a/src/Orchard.Specs/Orchard.Specs.csproj b/src/Orchard.Specs/Orchard.Specs.csproj
index ef1c5a4b8..f44bab1fe 100644
--- a/src/Orchard.Specs/Orchard.Specs.csproj
+++ b/src/Orchard.Specs/Orchard.Specs.csproj
@@ -88,9 +88,17 @@
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-    <Reference Include="nunit.framework, Version=2.5.2.9222, Culture=neutral, PublicKeyToken=96d09a1eb7f44a77, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\lib\nunit\nunit.framework.dll</HintPath>
+    <Reference Include="nunit.framework, Version=2.5.10.11092, Culture=neutral, PublicKeyToken=96d09a1eb7f44a77, processorArchitecture=MSIL">
+      <HintPath>..\packages\NUnit.2.5.10.11092\lib\nunit.framework.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="nunit.mocks, Version=2.5.10.11092, Culture=neutral, PublicKeyToken=96d09a1eb7f44a77, processorArchitecture=MSIL">
+      <HintPath>..\packages\NUnit.2.5.10.11092\lib\nunit.mocks.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="pnunit.framework, Version=1.0.4109.34242, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>..\packages\NUnit.2.5.10.11092\lib\pnunit.framework.dll</HintPath>
+      <Private>True</Private>
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.Configuration" />
@@ -352,6 +360,7 @@
       <Generator>SpecFlowSingleFileGenerator</Generator>
       <LastGenOutput>Numeric.feature.cs</LastGenOutput>
     </None>
+    <None Include="packages.config" />
     <None Include="Tags.feature">
       <Generator>SpecFlowSingleFileGenerator</Generator>
       <LastGenOutput>Tags.feature.cs</LastGenOutput>
diff --git a/src/Orchard.Specs/packages.config b/src/Orchard.Specs/packages.config
new file mode 100644
index 000000000..4c04439e8
--- /dev/null
+++ b/src/Orchard.Specs/packages.config
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="NUnit" version="2.5.10.11092" targetFramework="net451" />
+</packages>
\ No newline at end of file
diff --git a/src/Orchard.Tests.Modules/Orchard.Tests.Modules.csproj b/src/Orchard.Tests.Modules/Orchard.Tests.Modules.csproj
index e9a7dc3f0..ca0481023 100644
--- a/src/Orchard.Tests.Modules/Orchard.Tests.Modules.csproj
+++ b/src/Orchard.Tests.Modules/Orchard.Tests.Modules.csproj
@@ -111,9 +111,17 @@
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-    <Reference Include="nunit.framework, Version=2.5.2.9222, Culture=neutral, PublicKeyToken=96d09a1eb7f44a77, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\lib\nunit\nunit.framework.dll</HintPath>
+    <Reference Include="nunit.framework, Version=2.5.10.11092, Culture=neutral, PublicKeyToken=96d09a1eb7f44a77, processorArchitecture=MSIL">
+      <HintPath>..\packages\NUnit.2.5.10.11092\lib\nunit.framework.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="nunit.mocks, Version=2.5.10.11092, Culture=neutral, PublicKeyToken=96d09a1eb7f44a77, processorArchitecture=MSIL">
+      <HintPath>..\packages\NUnit.2.5.10.11092\lib\nunit.mocks.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="pnunit.framework, Version=1.0.4109.34242, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>..\packages\NUnit.2.5.10.11092\lib\pnunit.framework.dll</HintPath>
+      <Private>True</Private>
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.ComponentModel.DataAnnotations" />
@@ -344,6 +352,7 @@
     <None Include="App.config">
       <SubType>Designer</SubType>
     </None>
+    <None Include="packages.config" />
   </ItemGroup>
   <ItemGroup>
     <EmbeddedResource Include="Recipes\Services\FoldersData\Sample2\Module.txt" />
diff --git a/src/Orchard.Tests.Modules/packages.config b/src/Orchard.Tests.Modules/packages.config
new file mode 100644
index 000000000..4c04439e8
--- /dev/null
+++ b/src/Orchard.Tests.Modules/packages.config
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="NUnit" version="2.5.10.11092" targetFramework="net451" />
+</packages>
\ No newline at end of file
diff --git a/src/Orchard.Tests/Orchard.Framework.Tests.csproj b/src/Orchard.Tests/Orchard.Framework.Tests.csproj
index 1f9428e52..8500308d5 100644
--- a/src/Orchard.Tests/Orchard.Framework.Tests.csproj
+++ b/src/Orchard.Tests/Orchard.Framework.Tests.csproj
@@ -107,9 +107,17 @@
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-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\lib\nunit\nunit.framework.dll</HintPath>
+    <Reference Include="nunit.framework, Version=2.5.10.11092, Culture=neutral, PublicKeyToken=96d09a1eb7f44a77, processorArchitecture=MSIL">
+      <HintPath>..\packages\NUnit.2.5.10.11092\lib\nunit.framework.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="nunit.mocks, Version=2.5.10.11092, Culture=neutral, PublicKeyToken=96d09a1eb7f44a77, processorArchitecture=MSIL">
+      <HintPath>..\packages\NUnit.2.5.10.11092\lib\nunit.mocks.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="pnunit.framework, Version=1.0.4109.34242, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>..\packages\NUnit.2.5.10.11092\lib\pnunit.framework.dll</HintPath>
+      <Private>True</Private>
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.ComponentModel.DataAnnotations">
@@ -353,6 +361,7 @@
     <None Include="App.config">
       <SubType>Designer</SubType>
     </None>
+    <None Include="packages.config" />
   </ItemGroup>
   <ItemGroup>
     <EmbeddedResource Include="Environment\Extensions\FoldersData\Sample1\Module.txt" />
diff --git a/src/Orchard.Tests/packages.config b/src/Orchard.Tests/packages.config
new file mode 100644
index 000000000..4c04439e8
--- /dev/null
+++ b/src/Orchard.Tests/packages.config
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="NUnit" version="2.5.10.11092" targetFramework="net451" />
+</packages>
\ No newline at end of file
diff --git a/src/Orchard.Web.Tests/Orchard.Web.Tests.csproj b/src/Orchard.Web.Tests/Orchard.Web.Tests.csproj
index 7466aea1d..7a17b4aa9 100644
--- a/src/Orchard.Web.Tests/Orchard.Web.Tests.csproj
+++ b/src/Orchard.Web.Tests/Orchard.Web.Tests.csproj
@@ -64,9 +64,17 @@
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-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\lib\nunit\nunit.framework.dll</HintPath>
+    <Reference Include="nunit.framework, Version=2.5.10.11092, Culture=neutral, PublicKeyToken=96d09a1eb7f44a77, processorArchitecture=MSIL">
+      <HintPath>..\packages\NUnit.2.5.10.11092\lib\nunit.framework.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="nunit.mocks, Version=2.5.10.11092, Culture=neutral, PublicKeyToken=96d09a1eb7f44a77, processorArchitecture=MSIL">
+      <HintPath>..\packages\NUnit.2.5.10.11092\lib\nunit.mocks.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="pnunit.framework, Version=1.0.4109.34242, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>..\packages\NUnit.2.5.10.11092\lib\pnunit.framework.dll</HintPath>
+      <Private>True</Private>
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.Configuration" />
@@ -119,6 +127,10 @@
   <ItemGroup>
     <Service Include="{82A7F48D-3B50-4B1E-B82E-3ADA8210C358}" />
   </ItemGroup>
+  <ItemGroup>
+    <None Include="app.config" />
+    <None Include="packages.config" />
+  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
        Other similar extension points exist, see Microsoft.Common.targets.
diff --git a/src/Orchard.Web.Tests/packages.config b/src/Orchard.Web.Tests/packages.config
new file mode 100644
index 000000000..4c04439e8
--- /dev/null
+++ b/src/Orchard.Web.Tests/packages.config
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="NUnit" version="2.5.10.11092" targetFramework="net451" />
+</packages>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.Projections/Tests/Orchard.Projections.Tests.csproj b/src/Orchard.Web/Modules/Orchard.Projections/Tests/Orchard.Projections.Tests.csproj
index 4c65ba7ef..1adf3a1c3 100644
--- a/src/Orchard.Web/Modules/Orchard.Projections/Tests/Orchard.Projections.Tests.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Projections/Tests/Orchard.Projections.Tests.csproj
@@ -54,8 +54,17 @@
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     </Reference>
-    <Reference Include="nunit.framework">
-      <HintPath>..\..\..\..\..\lib\nunit\nunit.framework.dll</HintPath>
+    <Reference Include="nunit.framework, Version=2.5.10.11092, Culture=neutral, PublicKeyToken=96d09a1eb7f44a77, processorArchitecture=MSIL">
+      <HintPath>..\..\..\..\packages\NUnit.2.5.10.11092\lib\nunit.framework.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="nunit.mocks, Version=2.5.10.11092, Culture=neutral, PublicKeyToken=96d09a1eb7f44a77, processorArchitecture=MSIL">
+      <HintPath>..\..\..\..\packages\NUnit.2.5.10.11092\lib\nunit.mocks.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="pnunit.framework, Version=1.0.4109.34242, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>..\..\..\..\packages\NUnit.2.5.10.11092\lib\pnunit.framework.dll</HintPath>
+      <Private>True</Private>
     </Reference>
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     <Reference Include="System.Core" />
@@ -98,6 +107,9 @@
   <ItemGroup>
     <Service Include="{82A7F48D-3B50-4B1E-B82E-3ADA8210C358}" />
   </ItemGroup>
+  <ItemGroup>
+    <None Include="packages.config" />
+  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
        Other similar extension points exist, see Microsoft.Common.targets.
diff --git a/src/Orchard.Web/Modules/Orchard.Projections/Tests/packages.config b/src/Orchard.Web/Modules/Orchard.Projections/Tests/packages.config
new file mode 100644
index 000000000..4c04439e8
--- /dev/null
+++ b/src/Orchard.Web/Modules/Orchard.Projections/Tests/packages.config
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="NUnit" version="2.5.10.11092" targetFramework="net451" />
+</packages>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.Tokens/Tests/Orchard.Tokens.Tests.csproj b/src/Orchard.Web/Modules/Orchard.Tokens/Tests/Orchard.Tokens.Tests.csproj
index 80e7fefe7..ad0d3140f 100644
--- a/src/Orchard.Web/Modules/Orchard.Tokens/Tests/Orchard.Tokens.Tests.csproj
+++ b/src/Orchard.Web/Modules/Orchard.Tokens/Tests/Orchard.Tokens.Tests.csproj
@@ -39,8 +39,17 @@
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     </Reference>
-    <Reference Include="nunit.framework">
-      <HintPath>..\..\..\..\..\lib\nunit\nunit.framework.dll</HintPath>
+    <Reference Include="nunit.framework, Version=2.5.10.11092, Culture=neutral, PublicKeyToken=96d09a1eb7f44a77, processorArchitecture=MSIL">
+      <HintPath>..\..\..\..\packages\NUnit.2.5.10.11092\lib\nunit.framework.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="nunit.mocks, Version=2.5.10.11092, Culture=neutral, PublicKeyToken=96d09a1eb7f44a77, processorArchitecture=MSIL">
+      <HintPath>..\..\..\..\packages\NUnit.2.5.10.11092\lib\nunit.mocks.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="pnunit.framework, Version=1.0.4109.34242, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>..\..\..\..\packages\NUnit.2.5.10.11092\lib\pnunit.framework.dll</HintPath>
+      <Private>True</Private>
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     <Reference Include="System.Core">
@@ -85,6 +94,9 @@
   <ItemGroup>
     <Service Include="{82A7F48D-3B50-4B1E-B82E-3ADA8210C358}" />
   </ItemGroup>
+  <ItemGroup>
+    <None Include="packages.config" />
+  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
        Other similar extension points exist, see Microsoft.Common.targets.
diff --git a/src/Orchard.Web/Modules/Orchard.Tokens/Tests/packages.config b/src/Orchard.Web/Modules/Orchard.Tokens/Tests/packages.config
new file mode 100644
index 000000000..4c04439e8
--- /dev/null
+++ b/src/Orchard.Web/Modules/Orchard.Tokens/Tests/packages.config
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="NUnit" version="2.5.10.11092" targetFramework="net451" />
+</packages>
\ No newline at end of file
diff --git a/src/Tools/Orchard.Tests/Orchard.Tests.csproj b/src/Tools/Orchard.Tests/Orchard.Tests.csproj
index 503884cb3..6efbf464c 100644
--- a/src/Tools/Orchard.Tests/Orchard.Tests.csproj
+++ b/src/Tools/Orchard.Tests/Orchard.Tests.csproj
@@ -60,9 +60,17 @@
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-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\..\lib\nunit\nunit.framework.dll</HintPath>
+    <Reference Include="nunit.framework, Version=2.5.10.11092, Culture=neutral, PublicKeyToken=96d09a1eb7f44a77, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\NUnit.2.5.10.11092\lib\nunit.framework.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="nunit.mocks, Version=2.5.10.11092, Culture=neutral, PublicKeyToken=96d09a1eb7f44a77, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\NUnit.2.5.10.11092\lib\nunit.mocks.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="pnunit.framework, Version=1.0.4109.34242, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\NUnit.2.5.10.11092\lib\pnunit.framework.dll</HintPath>
+      <Private>True</Private>
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     <Reference Include="System" />
     <Reference Include="System.Core">
@@ -107,6 +115,9 @@
   <ItemGroup>
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+  <ItemGroup>
+    <None Include="packages.config" />
+  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
        Other similar extension points exist, see Microsoft.Common.targets.
diff --git a/src/Tools/Orchard.Tests/packages.config b/src/Tools/Orchard.Tests/packages.config
new file mode 100644
index 000000000..4c04439e8
--- /dev/null
+++ b/src/Tools/Orchard.Tests/packages.config
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="NUnit" version="2.5.10.11092" targetFramework="net451" />
+</packages>
\ No newline at end of file