Message Oracle PLS-00925 - native compilation failed: Unable to create file (string string)

ERRORnative compilation failed: Unable to create file (string string)
CAUSENative compilation of a PL/SQL program failed because a file could not be created. It is likely that the system parameter plsql_native_library_dir does not reference a writable, existing directory
ACTIONEnsure that the system parameter plsql_native_library_dir references a directory which exists, and is writable.