MainPage.xaml throws an error while loading designer.

Question

Hello,
I am new to WIndows store app development.
I am creating a sample windows store App using VC++ UAP using Visual Studio 2015 CTP5. 
MainPage.xaml throws an error while loading the designer:
"The element [Grid] could not be displayed because of a problem with WIndows..UI.Xaml.Control.Grid"
Exception:
NullReferenceException: Object reference not set to an instance of an object.
at Microsoft.VisualStudio.DesignTools.WindowsXamlDesigner.WindowsStoreXamlPlatform.get_ThemeResources()
at Microsoft.VisualStudio.DesignTools.Platform.InstanceBuilders.ClrObjectInstanceBuilder.FindInstantiatedResource(IInstanceBuilderContext context, ViewNode viewNode, DocumentNode documentNode, DocumentNode keyNode)
at Microsoft.VisualStudio.DesignTools.Platform.InstanceBuilders.ClrObjectInstanceBuilder.UpdatePropertyOrChildValue(IInstanceBuilderContext context, ViewNode viewNode, IProperty propertyKey, Int32 childIndex, DocumentNodeChangeAction action, DocumentNode valueNode, ViewNode& childViewNode, IInstanceBuilder& valueBuilder, Boolean& isNewInstance)
at Microsoft.VisualStudio.DesignTools.Platform.InstanceBuilders.ClrObjectInstanceBuilder.UpdateProperty(IInstanceBuilderContext context, ViewNode viewNode, IProperty propertyKey, DocumentNode valueNode)
at Microsoft.VisualStudio.DesignTools.Platform.InstanceBuilders.DependencyObjectInstanceBuilderBase`1.UpdateProperty(IInstanceBuilderContext context, ViewNode viewNode, IProperty propertyKey, DocumentNode valueNode)
at Microsoft.VisualStudio.DesignTools.WindowsXamlDesigner.InstanceBuilders.FrameworkElementInstanceBuilder.UpdateProperty(IInstanceBuilderContext context, ViewNode viewNode, IProperty propertyKey, DocumentNode valueNode)
at Microsoft.VisualStudio.DesignTools.Platform.InstanceBuilders.ClrObjectInstanceBuilder.InstantiateProperties(IInstanceBuilderContext context, ViewNode viewNode, DocumentCompositeNode compositeNode)
at Microsoft.VisualStudio.DesignTools.Platform.InstanceBuilders.ClrObjectInstanceBuilder.Initialize(IInstanceBuilderContext context, ViewNode viewNode, Boolean isNewInstance)
at Microsoft.VisualStudio.DesignTools.Platform.InstanceBuilders.ViewNodeManager.InitializeInstance(IInstanceBuilder builder, ViewNode viewNode, Boolean isNewInstance)
The default contents of MainPage.Xaml for windows 8.1 project is :
<Page
x:Class="HelloWorld.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:HelloWorld"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d">
<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
</Grid>
</Page>
The windows Phone 8.1 project loads the MainPage.xaml correctly. What is wrong with MainPage.xaml of Windows 8.1 project ?
Thanks,
Kunal

Answer 1

There is nothing wrong with the code.
>> using Visual Studio 2015 CTP5. 
You're using a beta version of Visual Studio. Try using VS2013 instead. There's probably a bug.
It could also be a problem with your Visual Studio install. Try repairing and/or reinstalling.
Does taking out the Background property fix the issue? (i.e. just leave a completely empty grid)
I'm a self-taught noob amateur. Please take this into account when responding to my posts or when taking advice from me.