avrdude: stk500_recv(): programmer is not responding

Dear friend, please help me with problem:
When i try to load sketch "blink" and another sketch "arduino ide" show me this error:

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x2a

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x2a

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x2a

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x2a

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x2a

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x2a

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x2a

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x2a

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x2a

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x2a

I tried to change usb cable (3 pcs), reinstall all driver, tried to install drivers and program on another PC, change usb port but unseccesfully.

LED on 13 pin is lighting...

Arduino UNO atmega328P-PU, OS MS Win7.

But yesterday all worked good...

Try burning the bootloader.

Замути другую ардуину и используй ее чтобы прошить бутлоадер.в настройках выбери arduino as isp

Advisor:
Замути другую ардуину и используй ее чтобы прошить бутлоадер.в настройках выбери arduino as isp

What....

codlink:
What....

He russian i think understand this:-) i say he need two arduino connect and select arduino as isp and burn bootloader or is crystal problem.

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