SQLitePCL.raw: SQLite Error 26: 'file is not a database' when using EF Core 3.1.2 and SQLitePCLRaw.bundle_e_sqlcipher

I feel sure it is me doing something wrong but I have been trying this for hours and no matter what I try I keep getting the exception below about the file is not a database. I have quadruple checked the location and password and they are correct and my older EF Core 2.1.X code can open the file and read from it just. It is the EF Core 3.1.2 project that I cannot get working. I also tried calling Batteries_V2 like the older code but that did not help.

Any suggestions?

I am using two nugets in my .NET Standard 2.0 project with EF Core 3.1.2 to created my entities assembly.

  <ItemGroup>
    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite.Core" Version="3.1.2" />
    <PackageReference Include="SQLitePCLRaw.bundle_e_sqlcipher" Version="2.0.2" />
  </ItemGroup>

The Entities DbContext Code:

public class MyDbContext : DbContext
{
  public MyDbContext(DbContextOptions<MyDbContext> options) : base(options)
  {
  }
  protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
  {
  SQLitePCL.Batteries.Init();
  }

  public DbSet<Form> Forms { get; set; }
}

The code that uses the Entities is a .NET Core 3.1 MSTest app.

var connectionStringBuilder = new Microsoft.Data.Sqlite.SqliteConnectionStringBuilder
{
    DataSource = @"Data Source=C:\Temp\MYDbLite.db",
    Password = "KDSLKJLSDFJLSKDFKLDSKLFJSDFJKLSDFJKLSDF"
};
var dcob = new DbContextOptionsBuilder<MyDbContext>()
    .UseSqlite(connectionStringBuilder.ConnectionString);
var db = new MyDbContext(dcob.Options);
var forms = await db.Forms.ToListAsync();

Message I get:

Test method HealthWare.Entities.POCLite.Tests.UnitTests.InstantiateTest threw exception: 
Microsoft.Data.Sqlite.SqliteException: SQLite Error 26: 'file is not a database'.

Stack Trace: SqliteException.ThrowExceptionForRC(Int32 rc, sqlite3 db) SqliteCommand.PrepareAndEnumerateStatements(Stopwatch timer)+MoveNext() SqliteCommand.GetStatements(Stopwatch timer)+MoveNext() SqliteDataReader.NextResult() SqliteCommand.ExecuteReader(CommandBehavior behavior) SqliteCommand.ExecuteReader() SqliteCommand.ExecuteNonQuery() SqliteConnectionExtensions.ExecuteNonQuery(SqliteConnection connection, String commandText, SqliteParameter[] parameters) SqliteConnection.Open() DbConnection.OpenAsync(CancellationToken cancellationToken) — End of stack trace from previous location where exception was thrown — RelationalConnection.OpenDbConnectionAsync(Boolean errorsExpected, CancellationToken cancellationToken) RelationalConnection.OpenDbConnectionAsync(Boolean errorsExpected, CancellationToken cancellationToken) RelationalConnection.OpenAsync(CancellationToken cancellationToken, Boolean errorsExpected) RelationalCommand.ExecuteReaderAsync(RelationalCommandParameterObject parameterObject, CancellationToken cancellationToken) AsyncEnumerator.InitializeReaderAsync(DbContext _, Boolean result, CancellationToken cancellationToken) AsyncEnumerator.MoveNextAsync() EntityFrameworkQueryableExtensions.ToListAsync[TSource](IQueryable1 source, CancellationToken cancellationToken) EntityFrameworkQueryableExtensions.ToListAsync[TSource](IQueryable1 source, CancellationToken cancellationToken) UnitTests.InstantiateTest() line 25 ThreadOperations.ExecuteWithAbortSafety(Action action)