Getting error message about master sys sysclsobjs while converting SQL Server database to Azure

Question

I have a database with SQL Server 2000 compatibility level and SQL Server 2008 R2 (v10.50.2500). To export this database to MS Azure, I'm attempting to "export data-tier application." And I'm getting a mistake:

Error 0: An error occurred while attempting to reverse engineer elements of type Microsoft.Data.Tools.Schema.Sql.SchemaModel.SqlCredential:
Batch Command during reverse engineer failed with Error Code: -2146232060 Line Number: 16 Error Message: Invalid object name 'master.sys.sysclsobjs'.

What can I do to make it better?