There are two errors when completing a clone from PROD.
One is about the error “Xlib: connection to ":0.0" refused by server” , you should check the vnc server address and port number on app tier, they must the same as the value of $DISPLAY.
The other error is about “ORA-20100: File o0042978.tmp creation for FND_FILE failed” , you should check the environment variable $APPLPTMP on app tier, then to check the parameter value UTL_FILE_DIR. the $APPLPTMP should be included in the UTL_FILE_DIR, and you can using the following statement to check it:
exec FND_FILE.PUT_LINE(FND_FILE.LOG, 'it's a testing!');[@more@]
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