avrdude: stk500_rcv :programmer is not responding I'm a newbee to Arduino programming and hoping someone can help me with this. These are the error messages. 

avrdude: stk500_rcv() : programmer is not responding

avrdude: stk500_getsync() attempt 10 of 10:not in sync:

Problem uploading to board.

I'm using a Arduino UNO clone on com port 3,the blink sketch is functioning. I get the mentioned error message on all sketches I have ran. Not sure what to do.
try this site: https://github.com/Makeblock-official/Makeblock-USB-Driver/ , it works for me. This is a driver for arduino, and command for bash