Connect to local database (MS SQL SERVER)

Recently, I downloaded the 0xDBE (on the advice of a friend).

For the connection to SQL Server I use SQL Managment Studio 2012.
I have got a local db and connect to it with SQL Managment Studio 2012:
Server name: (localdb)\V11.0
Database name: TestDB

Connection is successful.

Now I want to repeat this action in 0xDBE.

But I can't connect and get an exception (look at 1.png).
I tried to change server name on "localhost", but I get the same exception (look at 2.png)

Help me, please!