Connection string problems

Hi, 

I am having a similar problem in terms of what I have seen on the internet when I have googled this problem.  However, the DataSettings.cs looks like it has changed and wants you to store the Settings.txt in the Tenants folder in the App_Data.  I have tried different things and I cannot get my application to work.  I keep on getting the following error when I write update-database in the Package Manager Console.

A connection string could not be resolved for the parameterless constructor of the derived DbContext. Either the database is not installed, or the file 'Settings.txt' does not exist or contains invalid content.

My connection string looks like the following.

<connectionStrings>

<add name="ObjectContextBase" connectionString="Data Source=DESKTOP-FTT7V1S;Initial Catalog=SmartStoreNET5;Integrated Security=True" providerName="System.Data.SqlClient" />

</connectionStrings>

In the \src\Presentation\SmartStore.Web\App_Data\Tenants folder, I wrote the connection string like the following in the Settings.txt.

<add name="ObjectContextBase" connectionString="Data Source=DESKTOP-FTT7V1S;Initial Catalog=SmartStoreNET5;Integrated Security=True" providerName="System.Data.SqlClient" />

My email is j8.bell@gmail.com

Thanks,

John

AppVersion: 3.0.3.0
DataProvider: sqlserver
DataConnectionString: Data Source=<My SQL server>;Initial Catalog=<My database name>;Integrated Security=False;Persist Security Info=False;User ID=<My user name>;Password=<My password>;Enlist=False

PS: The file is created automatically during an installation, i. e. manual editing is actually not necessary.

Thank you!  I really appreciate your help.  The application is working now.