Requested URL/OA_HTML/AppsLogin was not found on this server Applies to: Oracle Enterprise Linux 5.5 Oracle Application Install - Version: 12.1.1 Database 11gR1 Description: I recently came across a problem  the login page was throwing an error - 404 /OA_HTML/AppsLogin was not found on this server. All services of Database and Listener working fine and get connected. All Application services started successfully without any error/warning on status 0, multiple time restart the services of application and database and also restart the whole machine but still facing the same problem. Solution: After some research work I have found the following solution: The Problem occurs because the wsrp_service.wsdl was owned by root but the services were being started by applmgr. Ensure that the permission of the file $ORA_CONFIG_HOME/10.1.3/j2ee/oacore/application-deployments/oacore/html/server-wsdl/wsrp_service.wsdl Shows that it is owned by root user. Som...

APP-FND-01630, APP-FND-01662, cannot open .dbc file Applies to: I am using:  Oracle Enterprise Linux 5.5 Oracle Application Install - Version: 11.5.10.0 and later Database 11gR1 Description: I recently came across a problem after creating repository for Enterprise Manager of 11g, and unable to login the oracle application, facing the following errors: Solution: Locate the .dbc file and issue read/write permissions on it: cd $FND_SECURE chmod 777 TEST.dbc 👉 Check our complete guide: Oracle Error Codes Guide Author Box About the Author Rana Abdul Wahid  is an experienced Oracle Database Administrator with expertise in Oracle Database Administration, Oracle Data Guard, RMAN Backup & Recovery, Oracle RAC, Oracle E-Business Suite, Performance Tuning, and High Availability Solutions. Through this blog, he shares practical Oracle DBA solutions, troubleshooting guides, interview preparation resources, and production...