[Tizen] Fix build error

This reverts commit b97526f6a253aae05f875ce9e56db7d69f9fed9b.

Change-Id: I155aad19750b0650ea5579b4c83466a5dff71545

diff --git a/src/Tizen.NUI/Tizen.NUI.csproj b/src/Tizen.NUI/Tizen.NUI.csproj
index eb039ad..7eb6a00 100755 (executable)
--- a/src/Tizen.NUI/Tizen.NUI.csproj
+++ b/src/Tizen.NUI/Tizen.NUI.csproj
@@ -25,7 +25,7 @@
 \r
   <ItemGroup>\r
     <PackageReference Include="System.Reflection.TypeExtensions" Version="4.3.0" PrivateAssets="All" />\r
-    <PackageReference Include="Tizen.Applications.Common" Version="1.5.9" />\r
+    <PackageReference Include="Tizen.Applications.Common" Version="1.5.8" />\r
     <PackageReference Include="Tizen.System.SystemSettings" Version="1.0.4" PrivateAssets="All"/>\r
   </ItemGroup>\r
   <Target Name="ChangeAliasesOfStrongNameAssemblies" BeforeTargets="FindReferenceAssembliesForReferences;ResolveReferences">\r

diff --git a/src/Tizen.NUI/src/public/VisualBase.cs b/src/Tizen.NUI/src/public/VisualBase.cs
index eb7829f..5d68aaf 100755 (executable)
--- a/src/Tizen.NUI/src/public/VisualBase.cs
+++ b/src/Tizen.NUI/src/public/VisualBase.cs
@@ -14,6 +14,9 @@
 *
 */
 
+using System;
+using System.Runtime.InteropServices;
+
 namespace Tizen.NUI
 {