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LocalDatabase- Setup installation problem

I have c# winfrm project with Local database. I created setup File with attaching database.
But I get following error.
A file activation error occurred. The physical file name 'InventoryDb.mdf' may be incorrect. Diagnose and correct additional errors, and retry the operation.
It's working fine in the same computer as I have my project, but not in othet Windows 7 whe nI install it.
This is my connection string in App.config page
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
</configSections>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.1" />
</startup>
<entityFramework>
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework">
<parameters>
<parameter value="mssqllocaldb" />
</parameters>
</defaultConnectionFactory>
<providers>
<provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
</providers>
</entityFramework>
<connectionStrings>
<add name="Db" connectionString="Data Source=(LocalDB)\MSSQLLocalDB;AttachDbFilename=|DataDirectory|\InventoryDb.mdf;Integrated Security=True;Connect Timeout=30; MultipleActiveResultSets=True"
providerName="System.Data.SqlClient" />
</connectionStrings>
</configuration>
I wonder what is I'am missing? Do I have wrong connectionstring? I would appricate for your help.

Debugging app.config file in VS2015

While executing the c# project on VS 2015, the following exception shows up:
An unhandled exception of type 'System.TypeInitializationException'
occurred in EntityFramework.dll
Additional information: The type initializer for
'System.Data.Entity.Internal.AppConfig' threw an exception.
Here is the app.config file:
<?xml version="1.0" encoding="utf-8"?> <configuration>
<configSections>
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection,
EntityFramework, Version=5.0.0.0, Culture=neutral,
PublicKeyToken=b77a5c561934e089" requirePermission="false" />
<!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 --> </configSections>
<connectionStrings>
<add name="project_dbEntities" connectionString="metadata=res://*/Model1.csdl|res://*/Model1.ssdl|res://*/Model1.msl;provider=MySql.Data.MySqlClient;provider
connection string="server=localhost;user
id=root;password=rootpass;persistsecurityinfo=True;database=project_db""
providerName="System.Data.EntityClient" /> </connectionStrings>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" /> </startup> <entityFramework>
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory,
EntityFramework">
<parameters>
<parameter value="v13.0" />
</parameters>
</defaultConnectionFactory>
<providers>
<provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices,
EntityFramework.SqlServer" />
</providers> </entityFramework>
</configuration>

Entity Framework Connection String in App.Config

I am very new to Entity Framework so apologies if this question is basic.
I am working through a Code First text book, and have created a small class library (c#) and a console app. The text book indicates that when I run it Entity Framework will build the database in SQL server automatically. It doesn't and the reason I believe is because I have a named instance rather than the default instance \SQLExpress. The text book indicated I did not need a connection string when using the default instance, but since I am not using a default instance I am guessing I do need a connectionm string in App.Config. I have tried putting a standard connection string in this file but it does not work.
Here are the entire contents of my App.Config file
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
</configSections>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2" />
</startup>
<entityFramework>
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework">
<parameters>
<parameter value="mssqllocaldb" />
</parameters>
</defaultConnectionFactory>
<providers>
<provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
</providers>
</entityFramework>
</configuration>
Could someone please advise where the connection string goes, or tell me if I am going about this the wrong way.
UPDATE
Thanks to the help received so far, my App.Config file now looks as follows -
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
</configSections>
<connectionStrings>
<add name="Model" connectionString="Server=OFFICE-ACER\SQLE;Database=BreakAway;Trusted_Connection=True;" providerName="System.Data.EntityClient" />
</connectionStrings>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2" />
</startup>
<entityFramework>
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework">
<parameters>
<parameter value="mssqllocaldb" />
</parameters>
</defaultConnectionFactory>
<providers>
<provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
</providers>
</entityFramework>
</configuration>
However, nothing happens i.e. no database is created as before.

Under your <configSections> tag, you can place this
<connectionStrings>
<add name="myConn" connectionString="theConnString" providerName="System.Data.SqlClient" />
</connectionStrings>
And then replace the values with what you need
Also although it may not help you in this situation, to avoid having to manually do this in future, the EntityFramework NuGet package works wonders, you just input the database's url and your login - then it creates the entire connection string for you in your config file, creates your edmx and allows you to import the data of your choice

This should do it:
<?xml version="1.0"?>
<configuration>
<connectionStrings>
<add name="putYourEntityName" connectionString="putYourConnectionStringHere" providerName="System.Data.EntityClient"/>
</connectionStrings>
</configuration>

<configuration>
<configSections>
...
</configSections>
<connectionStrings>
<add name="Name" connectionString="Data Source=servername; Initial Catalog = yourDbName ; Intgrated Security ="According to your requirement" providerName="System.Data.SqlClient" />
</connectionStrings>
...

First thing that You need to know. If You are using a Class Library (.dll), the Entity (.edmx) file created inside the .dll, and You are invoking this Method, from an MVC Application (That have a web.config). The connection string inside of the App.config will never be used.
So You can have the Connection string mapped on the Web.Config (MVC Project), and even delete from the App.Config. It will always use the web.config.

No connection string named 'KgSoftProContext' could be found in the application config file

I've added the DLL in my project database. main sentence even though the connection in the config file add it to the project I'm getting this error.
Database dll App.Config file
<configuration>
<configSections>
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false"/>
<!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
</configSections>
<entityFramework>
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework">
<parameters>
<parameter value="mssqllocaldb"/>
</parameters>
</defaultConnectionFactory>
<providers>
<provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer"/>
</providers>
</entityFramework>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2"/>
</startup>
</configuration>
Main Project app.config file
<connectionStrings>
<add name="KgSoftProContext" connectionString="Data Source=KDRGNY\KDRGNY;Initial Catalog=KgSoftPro;Integrated Security=True;MultipleActiveResultSets=True"
providerName="System.Data.SqlClient" />
</connectionStrings>
context file
static KgSoftProContext()
{
Database.SetInitializer<KgSoftProContext>(null);
}
public KgSoftProContext()
: base("name=KgSoftProContext")
{
}

it's been outta control I'm trying to do the problem completely. the problem is solved.

copy the connections string section to the .config file in your main project.

EF6 with localdb v13 underlying connection failed to open

I have a simple console app with EF6, my PC has localdb v13 and when I try to connect to the EF database, I get this error
{"Cannot open database \"NinjaDomain.DataModel.NinjaContext\" requested by the login. The login failed.\r\nLogin failed for user 'xx\\xx.yy'."}
this is the app.config
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
</configSections>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2" />
</startup>
<entityFramework>
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework">
<parameters>
<parameter value="mssqllocaldb" />
</parameters>
</defaultConnectionFactory>
<providers>
<provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
</providers>
</entityFramework>
</configuration>

It is does not matter Console app might also have an App.config, normally if you have installed EF from Package Manager Console like that:
install-package entityframework
The app.config will be automatically added to your project file.
This is the default connection string, if the do not have it the app.config (related to EF v 6.1.3)
"Data Source=(localdb)\\mssqllocaldb;Initial Catalog=MyConsoleApplication.Program+MyDbContext;Integrated Security=True;MultipleActiveResultSets=True"
Below, I have changed the app.config (If you do not have you can just add it to your project) and I have provided the connection string
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
</configSections>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.1" />
</startup>
<connectionStrings>
<add name="DatabaseConnectionString"
connectionString="Integrated Security=SSPI; Initial Catalog=UsersDatabase5; Data Source=.\;" providerName="System.Data.SqlClient" />
</connectionStrings>
<entityFramework>
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework">
<parameters>
<parameter value="mssqllocaldb" />
</parameters>
</defaultConnectionFactory>
<providers>
<provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
</providers>
</entityFramework>
</configuration>
You should pass the connection string to the DbContext constructor with 'name' keyword like that:
using (var myDbContext = new MyDbContext("name=" + "DatabaseConnectionString"))
{
....
I have used the normal SQL Server in my app.config example:
Data Source=.\;
You can change it:
Data Source=(localdb)\\mssqllocaldb;
or just check your SQL Server instance name (use SSM or command line).