Go Down

Topic: Problem including CUSTOM library uploaded to the Online Editor (Read 848 times) previous topic - next topic


I have the same problem when trying to use my own custom library.

/tmp/708540009/sketch_oct8a/sketch_oct8a.ino:2:16: fatal error: a1.h: No such file or directory

Windows 10, 64 Bit

Thanks for your help


Libraries must follow a specific arrangement.

Help here

A link to your library where you store it online would also be useful.

It may not be the answer you were looking for but its the one I am giving based on either experience, educated guess, google (who would have thunk it ! ) or the fact that you gave nothing to go with in the first place so I used my wonky crystal ball.


This is my very simple library...



There are quite a few reports of this issue with the Arduino Web Editor. Here are the ones I found after a quick glance:

There is a comment from one of the Arduino developers in the first link:
Thanks for your report @tko1982, we'll try to find out what is happening
So my guess is that's where we'll get the first news of any results of the investigation. You might want to subscribe to that thread.

Until then, the workaround would be to use the standard Arduino IDE, which you can download here:


It was an error on our end. It should be solved now. Can you confirm?


Today at 08:02 am
My sample library now works as ít should! Looks like the error is fixed.


Go Up