If this is the only Warning/Error you are receiving, it should build and deploy. Since you just downloaded it, I'll ask…
- Is this the first time you're trying to deploy?
- Did you create a strong name key?
- Are you deploying from the solution or the project?
- Is this installed on XP or Windows 2003 Server?
- Is SQL Server running?
- …in other words have you checked-off the installation and configuration list?