TNS:listener does not currently know of service requested in connect
descriptor

 The listener received a request to establish a connection to a database or other
service. The connect descriptor received by the listener specified a service name for a
service (usually a database service) that either has not yet dynamically registered with
the listener or has not been statically configured for the listener. This may be a
temporary condition such as after the listener has started, but before the database
instance has registered with the listener.

 The listener received a request to establish a connection to a database or other
service. The connect descriptor received by the listener specified a service name for a
service (usually a database service) that either has not yet dynamically registered with
the listener or has not been statically configured for the listener. This may be a
temporary condition such as after the listener has started, but before the database
instance has registered with the listener.