RTOS/CC1312R: .Bin file is not getting generated for the OAD

Tool/software: TI-RTOS

Hey there 

             I'm using CC1312R board with Linux collector application, everything works fine for me. In my application I also need OAD update that's why I followed steps to perform the OAD form the default binary files available with SDK and that's work for me 

Now I need to generate the .bin of my own source .hex, that's why i just followed the steps provided here 

http://dev.ti.com/tirex/content/simplelink_cc13x0_sdk_1_40_00_10/docs/ti154stack/ti154stack-users-guide/ti154stack/native-oad.html

then i run the command to generate the .bin but unfortunately I haven't found .bin in my directory 
python C:\Users\Mahendra\Desktop\OAD\oad/oad_image_tool.py -v 0x0200 -i Tilt_Sensor.hex -ob sensor_oad_cc13x0lp_app-nverase_v2.bin -m 0x1000

here is my cmd screenshot 


Can anyone help me here ?
Thanks in Advance