diff --git a/source/dotnet/Samples/AdaptiveCards.Sample.Html/AdaptiveCards.Sample.Html.csproj b/source/dotnet/Samples/AdaptiveCards.Sample.Html/AdaptiveCards.Sample.Html.csproj
index 219725b4cc..e3e9e97980 100644
--- a/source/dotnet/Samples/AdaptiveCards.Sample.Html/AdaptiveCards.Sample.Html.csproj
+++ b/source/dotnet/Samples/AdaptiveCards.Sample.Html/AdaptiveCards.Sample.Html.csproj
@@ -10,6 +10,7 @@
+
diff --git a/source/dotnet/Samples/AdaptiveCards.Sample.ImageRender/AdaptiveCards.Sample.ImageRender.csproj b/source/dotnet/Samples/AdaptiveCards.Sample.ImageRender/AdaptiveCards.Sample.ImageRender.csproj
index 4ab633d6a6..d9228eb670 100644
--- a/source/dotnet/Samples/AdaptiveCards.Sample.ImageRender/AdaptiveCards.Sample.ImageRender.csproj
+++ b/source/dotnet/Samples/AdaptiveCards.Sample.ImageRender/AdaptiveCards.Sample.ImageRender.csproj
@@ -10,6 +10,7 @@
+
diff --git a/source/dotnet/Samples/ImageRendererServer/ImageRendererServer.csproj b/source/dotnet/Samples/ImageRendererServer/ImageRendererServer.csproj
index ae37000e4d..bf50434f3b 100644
--- a/source/dotnet/Samples/ImageRendererServer/ImageRendererServer.csproj
+++ b/source/dotnet/Samples/ImageRendererServer/ImageRendererServer.csproj
@@ -17,6 +17,7 @@
+
diff --git a/source/dotnet/Test/AdaptiveCards.Rendering.Html.Test/AdaptiveCards.Rendering.Html.Test.csproj b/source/dotnet/Test/AdaptiveCards.Rendering.Html.Test/AdaptiveCards.Rendering.Html.Test.csproj
index c7e8eebb9c..1962f4662f 100644
--- a/source/dotnet/Test/AdaptiveCards.Rendering.Html.Test/AdaptiveCards.Rendering.Html.Test.csproj
+++ b/source/dotnet/Test/AdaptiveCards.Rendering.Html.Test/AdaptiveCards.Rendering.Html.Test.csproj
@@ -14,6 +14,7 @@
+
diff --git a/source/dotnet/Test/AdaptiveCards.Test/AdaptiveCards.Test.csproj b/source/dotnet/Test/AdaptiveCards.Test/AdaptiveCards.Test.csproj
index dc94d7da9d..26c8481d31 100644
--- a/source/dotnet/Test/AdaptiveCards.Test/AdaptiveCards.Test.csproj
+++ b/source/dotnet/Test/AdaptiveCards.Test/AdaptiveCards.Test.csproj
@@ -11,6 +11,7 @@
+