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Posted: **25 Nov 2017 18:56**

I always get this message when I want to upload a sketch after I already have uploaded one. I have to unplug the Z-UNO in order to upload. I'm on the latest release. Is this a bug?

RAW Info:
----------------------------------------------------------
FIRMWARE DATA
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(<type 'exceptions.IndexError'>, '<string>', 461)

**** **** **** **** **** *
* * * * * * * * * *
* * * * * * * * * *
**** *** *** * * *** *
* * * * * * * * *
**** * * * * **** * * *

Error 0 Unknown exception "list index out of range"

Posted: **25 Nov 2017 19:02**

I have seen something similar, but I cannot remember what caused it. Long shot: do you use debugging via serial over usb? I have been using debugging over seria uartl instead of usb for the last few months, and I think that might have solved it.

Posted: **25 Nov 2017 21:40**

Select the correct port.

Posted: **26 Nov 2017 00:51**

The port should be correct because it works the first time and after reconnecting. However I will check next time to be sure.

I'm not using debugging functions, but thanks for the hint.

Posted: **26 Nov 2017 13:40**

I confirm the port is correct. I uploaded the sketch once and after it close the port I uploaded it again >> Error.

Now it doesn't work until I unplug it once.

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Error when uploading sketch

Error when uploading sketch

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