I have a sketch that compiles and uploads to my Nano on the Mac IDE, however the online Web editor fails to upload the sketch. In the Mac IDE I have the choice of both old and new boot loader versions, and I have to use the old boot loader, but there is no similar choice in the online IDE.
Is this a known issue, I have searched and not found anything about it.
There's something royally screwed up with the Arduino Web Editor. It appears to be using an outdated version of Arduino AVR Boards. Currently the "FLAVOUR: ATmega328" is the equivalent of Tools > Processor > ATmega328P (Old Bootloader) in the Arduino IDE running the latest Arduino AVR Boards 1.6.21.
So your problem has nothing to do with not having an old bootloader option (though anyone with a new official Nano is not going to be able to upload unless they select the Uno board).
Thank you for that, in a way I am glad that it isn't just me that is encountering this problem.
I am not certain, but I think that this did work a few weeks ago when I first started playing with the online web editor.
For various reasons I went back to the IDE on my Mac to continue my development, as I could keep archive copies of my sketch for backup and reversions.
Once I had finished the development I pasted my new sketch back into the online editor so that. could share it with a beta tester. It was then that I hit upload problem and jumped to the conclusion that the lack of the option for the old Boot Loader in the online web editor was the problem, as that option was available and used in the offline IDE.
Hopefully the team can fix this board problem with the online editor soon. I am not clear if it is specifically a Macintosh problem or if it affects other platforms in a similar way. I shall now watch the other thread which refers to the problem that I encounter.
This has been solved today by the dev team. I can now select the old bootloader option in the web editor and the upload is successful. Consider this solved.
For the person that asked what OS platform this affected, for me it was Apple Macintosh Sierra 10.12.16 using the Safara Web browser.
Thank you all for your help and leads, sorry I am a newbie on this forum and not familiar with all the etiquette and have not found how to consolidate threads, or who to ask to do so.
I will now report back on the other thread, sorry for any duplication. I will try not to do that again.