[SQL] Unable to connect to local database SQL

I have a problem with my local database made with SQL Server (Local DB). I can connect to the database on my computer but if I try to another computer, I get this error message:

I want a local database to store data, I don't need a server to manage the database.

This is my connection string:

`<connectionStrings>
<add name="stocksDB" connectionString="Data Source= (LocalDB)\MSSQLLocalDB;AttachDbFilename=|DataDirectory|\myDB.mdf;Integrated Security=True;" providerName="System.Data.SqlClient"/>
</connectionStrings>`


I have included the "SQL Server 2012 Express LocalDB" in prerequisites.



What did I do wrong?

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