have a Form connecting to 220.127.116.11 database and has a database link to 10.2.0.4 When you try run the report, the following error occurs:
ORA-01041: internal error. Hostdef extension doesn't exist
1) Please check for alert.log file for both databases and post any error message you getting there while running the report ?
2) Check the listener logs for 10g db, to see if there are any error message in log while running report ?
3) what is the output, if you just select from the DBlink you using in report ?