Unable to get my SqliteConnection to open

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SQLite

I need to do something where I create a blank database, and then run commands to generate my schema. I have everything worked out as far as I can tell, but for some reason every time I try to connect I get an error saying "Invalid format for parameter C:\Test\test.db"

Here's the code where I get the problem.

SQLiteConnection.CreateFile(filePath);
               String connectionString = "Data Source=" + filePath+";";
               using (var connection = new SQLiteConnection(filePath))
               {
                   connection.Open();

I have tried it with DataSource or Data Source in the connection string property. I also tried with and without that appended semicolon at the end. The CreateFile works, but then I can't get my connection to open. It throws an exception every time.

Can anyone please help me?