Hi
I am very new with Arduino and I need your help 
i am trying to upload a sketch and all the time I get the same error.
"Arduino: 1.8.7 (Windows 10), Board: "Arduino Nano, ATmega328P"
Sketch uses 3414 bytes (11%) of program storage space. Maximum is 30720 bytes.
Global variables use 74 bytes (3%) of dynamic memory, leaving 1974 bytes for local variables. Maximum is 2048 bytes.
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x5d
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avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x5d
Problem uploading to board. See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions.
This report would have more information with"
I checked the port and it's alright
The project is Arduino Obstacle Avoiding Robot from here:
It's my first project for the kids and they are very disappointed 