how to run calculator gui on armadeus board

Hi friends,,,

am newbie to qt..
i bought a apf51 dev kit from armadeus.com.. i want to run a simple gui applicaiton on this target.. so i've tried a calculator gui in qt example program..
i have installed qt creator and also install the toolchain linux-arm-g++.. i can compile the calculator program successfully. after compiling copied the binary file to the board by using tftp mode into this - location /usr/bin on board, when i run this file it shows the error like below.. if i run ts_test it will work perfectly.. please help me friends how to run the calculator gui on the board.

error is :
# ./calculator_arm -qws
#-sh: .//calculator_arm -qws: not found

i tried the command like without ./ and -qws also .. that time also display same error..
Please help me friends how to solve this??

Regards
JaganR