Cause . . . . . : Two or more export blocks in the binder language source file export the same symbols in the same order. This warning occurred while compiling line &4 of binder language source &3 in file &1 in library &2 while attempting to create service program &5 in library &6. Recovery . . . : No recovery required. All but the first duplicate export block are ignored. Technical description . . . . . . . . : The signature of the duplicate export block(s) is exported from the service program only once.