Missing ADO.NET entity data model template from visual studio 2012 professional

I did a search in C:\ProgramData\Package Cache for "eftools.msi"

There were three versions (from different beta/RCs I guess)

I picked the most recent and installed it.

This solved the problem for me.

Firstly you can add ClassLibrary in your Solution. Then, Add New Item to ClassLibrary and you can add Data>ADO.NET Entity Data Model