CCS/AM3352: "redefined: first defined in" error

Tool/software: Code Composer Studio

Hi,

We are getting redefined error(below) with our project based on AM3352 + CCSv7.

error #10056: symbol "iox_output" redefined: first defined in
   "../lib/Release/driver.lib<ioexpander.obj>"; redefined in
   "../lib/Debug/driver.lib<ioexpander.obj>"

error #10056: symbol "iox_input" redefined: first defined in
   "../lib/Release/driver.lib<ioexpander.obj>"; redefined in
   "../lib/Debug/driver.lib<ioexpander.obj>"

error #10056: symbol "ioexpander_init" redefined: first defined in
   "../lib/Release/driver.lib<ioexpander.obj>"; redefined in
   "../lib/Debug/driver.lib<ioexpander.obj>"

It seems the linker is linking the library files from both Release and
Debug folders, even though we have added only Debug folder in the
include file path(as shown below).

 
This project was building normal few weeks back but we get this error
after some code development, we don't understand what settings we are missing.
Please let us know if there is any way to overcome this error.

Best Regards.
Kummi