What steps can I take to resolve the 'file not found' error in ASP.NET MVC with SQL Server 2019?

Data and Databases
1

I’m developing an application using a code-first approach, but I encounter an error that prevents the database from being created when I launch the application. I’m working with SQL Server 2019 and I need assistance. The error message states:

Server Error in '/' Application.
The system cannot find the file specified
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception details: System.ComponentModel.Win32Exception: The system cannot find the file specified

The relevant part of my code is as follows:

// Ensure that login failures do not invoke lockout, only two-factor authentication
var loginResult = await SignInManager.PasswordSignInAsync(user.Email, user.Password, user.RememberMe, triggerLockout: false);
switch (loginResult)
{
    // Additional logic
}

I’ve confirmed that my connection string is accurate, yet it’s still failing. Here is the connection string I have in web.config:

<connectionStrings>
    <add name="DefaultConnection" 
         connectionString="Data Source=.;Initial Catalog=DefaultConnection;Integrated Security=True;" 
         providerName="System.Data.SqlClient" />
</connectionStrings>

Any guidance would be greatly appreciated.

2

Hey, you might wanna check if the database file is actually at the location ur connection string is pointing to. Sometimes, it defaults to a different folder than you expect. Also, make sure your SQL Server is running and accessible. Hope this helps a bit!

3

To address this issue, ensure that SQL Server is correctly installed and configured on your system. Double-check that your application has the necessary permissions to access the SQL Server instance. Another aspect to consider is whether the name of the Initial Catalog in your connection string matches any existing databases you have set up in SQL Server. Also, temporarily enable logging in your application to capture any detailed errors or messages during the connection attempt, which might give you further clues.