How to set default map location programatically in Vs2015


I’ve problem with loading the map in game with Visual Studio2015, I originally started from FPS c++ project and created MSVS2015 solution. From MSVS2015 FPS Project in DefaultEngine.ini file I specify GameDefaultMap variable to =“C:/Test_Map”. Even though I specify the explicit location of my map C:/Test_map.umap and I know that it physically exist there .

At run time when start the debugger following mesage is outputted :
"The map specified on the commandline ‘C:/Test_Map’ could not be found. Exiting.