error de conexion a sql

Hola buen dìa

Soy nueva en knime y tengo problemas en la conexion de esta herramienta a sql server 2012,

ya he instalado el driver el cual el sqljdbc4.jar y aun con eso tengo un error que es "Database Connector    Execute Failed: could not create connection to database: No settings available to create database connection"

la ruta que he utilizado para la conexion es:jdbc:sqlserver://<host>:<1433>/<database_name>

y la verdad no se a que se deba el error

Hello,

the error "No settings available to create database connection" indicates a problem with the connection settings. Have you configured the Database Connector node properly via the nodes configuration dialog? You can open the dialog va the context menu of the node. In the dialog you need to specify jdbc driver to use (e.g. the driver you have just installed), enter the correct database url (MS documentation) and provide user name and password.

Bye,

Tobias