CDA0004

Explanation
 Either the input file does not exist, or the permissions
for the input  file or the directory containing the input file do
not have read or  search permission set.                         

 In the message text:
 string is
the input file name.                                 

User response
 Ensure the input file exists and that the input
file and the  directories containing the input file have read and
search permissions  set.                                         