#4 database problem

[Anonymous]

Hi,
when I excute this code:
Database db = Database.create( "mydb" );
after that I delete that code and excute below code:
Database db = Database.connect( "mydb" );
db.start();
but there is this problem:
bm.db.DBException: bm.storage.InvalidRecordIDException...
what can I do?
please help me?
thanks...