Sub Main Not Found In Console App with DLL

I have a class lib named DatabaseOverviewClassLib with the following code:

Option Strict On
Imports System.Data.SqlClient


Public Class DatabaseOverview
Public m_ip As String
Public m_login As String
Public m_password As String
Public m_database As String
Public m_port As String

Public Sub GetDatabaseOverview(ByVal ip As String, ByVal login As String, ByVal password As String, ByVal database As String, Optional ByVal port As String = "1433")
m_ip = ip
m_login = login
m_password = password
m_database = database
m_port = port

Dim query As String = "select * from sysobjects type = 'U'"
Dim connStr As String = "Provider=SQLOLEDB;Datasource=" & ip & ";Initial Catalog=" & database & ";User ID=" & login & ";Password=" & password
Dim conn As SqlConnection = New SqlConnection(connStr)
Dim reader As SqlDataReader
Dim command As SqlCommand = New SqlCommand(query, conn)

Try
conn.Open()
reader = command.ExecuteReader
While reader.Read()
Console.WriteLine((reader.GetString(0).ToString & ", " & reader.GetString(1)))
End While
Catch ex As SqlException
Finally
conn.Close()
End Try
End Sub
End Class

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And I have a console app with the following code

Imports DatabaseOverview


Module Module1

Sub Main()


End Sub

End Module

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When I build the console app i get the following error

'Sub Main' was not found in 'DatabaseOverviewApp.DatabaseOverviewApp.DatabaseOverview.Module1'.