diff --git a/BCL.csproj b/BCL.csproj
index 85c67fd7c..84ea30936 100644
--- a/BCL.csproj
+++ b/BCL.csproj
@@ -214,6 +214,8 @@
     <TypeScriptCompile Include="libjs.d.ts" />
   </ItemGroup>
   <ItemGroup>
+    <TypeScriptCompile Include="ui\core\view.ts" />
+    <TypeScriptCompile Include="ui\core\observable.ts" />
     <Content Include="_references.ts" />
     <Content Include="image-source\Readme.md" />
     <Content Include="http\Readme.md" />
diff --git a/ui/core/observable.ts b/ui/core/observable.ts
new file mode 100644
index 000000000..19a76f130
--- /dev/null
+++ b/ui/core/observable.ts
@@ -0,0 +1 @@
+ 
\ No newline at end of file
diff --git a/ui/core/view.ts b/ui/core/view.ts
new file mode 100644
index 000000000..19a76f130
--- /dev/null
+++ b/ui/core/view.ts
@@ -0,0 +1 @@
+ 
\ No newline at end of file