Oracle Reports looks inside the REPORTS_PATH directory to find its message files. If this path is missing or doesn't include the folder containing the message files, the REP-0001 error occurs.
Oracle Reports looks for specific files like rw.msb or rpu.msb in the mesg folder.
REP-0001: Unable to find the Report Builder message file typically occurs when an Oracle Reports component (like the Builder or a background process) cannot locate its internal resource or message files. Oracle Help Center Common Causes ORACLE_HOME Oracle Reports looks inside the REPORTS_PATH directory to
Oracle provides a utility called rwdiag or rwrun -diag in some versions.
export ORACLE_HOME=/u01/app/oracle/middleware/oracle_home export PATH=$ORACLE_HOME/bin:$PATH Use code with caution. Run source ~/.bash_profile to apply the changes. Method 2: Configure REPORTS_PATH and UI_ICON Variables REP-0001: Unable to find the Report Builder message
Find the specific KEY_ORACLE_HOME_NAME folder for your installation.
For Linux/Unix:
If it is missing, edit your System Environment Variables and add the correct path to the REPORTS_PATH variable. Check the reports.sh or oracle.env file.