Server Explorer Error : .NET Framework Data provider for MS SQL Server Compact 4.0

How to solve the problem
Visual Studio 2012 & Server Explorer Error .NET Framework Data provider for MS SQL Server Compact 4.0 not found/not load/not registered
OKay.. I got these solutions from web that work for me
Easiest way let's try SQL Server Compact Toolbox
http://visualstudiogallery.msdn.microsoft.com/0e313dfd-be80-4afb-b5e9-6e74d369f7a1/
You may remove wrong registry entry before install SQL Server Compact Toolbox

start>run>regedit
Backup registry
find HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\VISUALSTUDIO\11.0\DATAPROVIDERS
Inside dataproviders find dataprovider for .NET 4 Compact and delete it.

Or try NuGet http://www.developerfusion.com/article/131917/using-nuget-packages/ Or http://blogs.msdn.com/b/spike/archive/2008/07/18/failed-to-find-or-load-the-registered-net-framework-data-provider.aspx