Error while uploading Sprinter on Sanguinololu [SOLVED]

Hi everybody, sorry in advance for my english.
I just started building a Prusa Mendel, and i chose Sanguinololu electronics. I finished assembling and now it's time to configure it. I've alredy modified "sanguino.upload.protocol=stk500" in "boards.txt" to "sanguino.upload.protocol=arduino". Like most of the other people, when I try to upload Sprinter on my board i receive this error:

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"avrdude: Can't find programmer id "arduino"

I've read lots of posts about this error, but I didn't find the solution that works for me.
Do you know how do I resolve this problem?
Thank you very much.

EDIT: I forgot to add some information. I'm using arduino-0018 (but I tried 0023 as well) and Ubuntu 11.10.

Edited 2 time(s). Last edit at 02/16/2012 05:15PM by Slasho.

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I've alredy modified "sanguino.upload.protocol=stk500" in "boards.txt" to "sanguino.upload.protocol=arduino".

Who said to do so? For USB-TTL adapters, like the Sanguinololu has built in, this is wrong.

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Generation 7 Electronics	Teacup Firmware	RepRap DIY

I did it because with stk500 it gave me this error:

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avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_recv(): programmer is not responding

I read it here to modified it.

I also followed the wiki and changed stk500 to arduino, but I didn't get the error, it worked after the change.

I forgot to write that I found the solution: I was using the wrong USB Port in the Arduino IDE. And now it works without change "stk500" to "arduino".
Thanks everybody for the help!

I was having the same problem with a Sanguinololu v1.3a, and found the solution: press 'reset' on the board 4 seconds after pressing 'upload' on the Arduino IDE.

Have you got the auto reset jumper fitted?

It is a 2 pin jumper in the middle of the board. I think it is supposed to be fitted when loading the firmware and removed when running the machine.

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