ASP .Net MVC 4, Invalid value for key 'attachdbfilename'

I’m new to asp.net mvc 4

Below is my connection string

<add name="MovieDBContext"
     connectionString="Data Source=(LocalDB)v11.0;
                       Initial Catalog=Movies;
                       AttachDbFilename=|DataDirectory|Movies.mdf;
                       Integrated Security=True" 
     providerName="System.Data.SqlClient" />

I’m getting following error when trying to access a particular control by url

Invalid value for key ‘attachdbfilename’.

The error itself says it is due to a wrong connection string,but I cant find where the problem is.
I’m using VisualStudio Management Studio.

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Answers:

Method 1

Answers:

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Method 1

Try changing your connection string to:

<add name="MovieDBContext"
    connectionString="Data Source=.;Initial Catalog=Movies;AttachDbFilename=|DataDirectory|Movies.mdf;Integrated Security=True"
    providerName="System.Data.SqlClient" />

Change Data Source to : Data Source=.; or Data Source=.SQLEXPRESS;

After that, you need to configure access right to App_Data.
For Win7, On Security tab in properties Add user network Service with full right.

Found similar question:

asp.net mvc Invalid value for key ‘attachdbfilename’

Or in my opinion, it might be just a typo in your connection string. Because you don’t have escape character for (LocalDB)v11.

Try writing Data Source=(LocalDB)\v11;

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