ORA-01045:user name lacks CREATE SESSION privilege; logon denied (Oracle)

If you get this message/error in Oracle:

ORA-01045:user name lacks CREATE SESSION privilege; logon denied

The Solution is simple. Just open command prompt and type the following:

sqlplus / as sysdba
grant create session to "USER-NAME";

1 2	sqlplus / as sysdba grant create session to "USER-NAME";

Replace “USER-NAME” with the message’s user name.