ld: Mismatched ABI (not an ELF file)

[programmer400]

Dear Friends

Im creating a binary executable from the object files , The command I
gave was

$ /opt/aCC/bin/aCC -o SOAPServer SOAPServer.o WFWuListService.o
WFWuListImpl.o WFWuListStructs.o WFWuList.o
-I/opt/systinet/server_cpp65/include/ -I../.. +DD64
/opt/systinet/server_cpp65/lib/libwasp.sl
/opt/systinet/server_cpp65/lib/libwasp_stl.sl
ld: Mismatched ABI (not an ELF file) for SOAPServer.o
Fatal error.

Even though I am using -I../.. +DD64 , it still gives me an error of
"Mismatched ABI (not an ELF file) "
Can someone please guide me in the right direction ?

Thanks
Amit