Patch 16777853 failed to apply

Hi,
Apps 12.1.3

Patch 16777853 failed to apply due to adrelink errors.

An error occurred while relinking application programs.
Continue as if it were successful [No] : No
 Freeing includes hash table
Freeing fixes hash table
 Freeing basedons hash table
Freeing entities hash table

You should check the file
/u01/oracle/PFC1U/apps/apps_st/appl/admin/PFC1U/log/pfc1u_16777853.log
for errors.

Adrelink log shows


ld: 0711-851 SEVERE ERROR: Output file:
/u01/oracle/PFC1U/apps/apps_st/appl/fnd/12.0.0/bin/fndfmxit.so
The file is in use and cannot be overwritten.
make: The error code from the last command is 12.