Line 2 begins to zero in on the problem.It’s just describing the Arduino version in use, what operating system is running, and which board you have selected. Here it is, that pesky error in all its freshly pasted glory. To do that, just fire up your PC’s text editor and paste it into the blank screen. All we’re going to do is take a closer look at what the message is actually saying. For this situation, however, we can be a bit more basic. Or you could take advantage of the active Arduino community by asking for help in a forum. This copy feature is ridiculously useful. You could, for example, paste the error message into Google and learn more about the error. You probably won’t fall off your chair to learn that by clicking that button, you just copied the error message from the little window at the bottom of The Serial Monitor’s UI to the clipboard of your computer. Of course there’s a file or directory! You just made the thing, and it’s right there, tucked inside a directory.īut hold up, let’s take a closer look. If you look at the bottom portion of the Arduino IDE where the error message shows up, there’s this handy little button that says “copy error messages.”Ĭlick on that now.

At first glance, the no such file or directory error is particularly maddening because it seems to break that useful purpose rule. They do, however, serve a useful purpose by telling us something about what went wrong. We’ll show you what they are.Įrror messages can be such a pain. This is actually a pretty common problem, and there are two easy fixes that almost always work. If you’re trying to run an Arduino sketch but keep coming across the “no such file or directory” error, don’t worry. And once more, those maddening words, “no such file or directory,” stare back at you in hostile gaslighting mockery. “Nothing to worry about,” you mutter, sleep-starved and semi-delirious as you hit upload again. You hit upload, palms sweaty with anticipation to see all your hard work come to fruition. You’ve just spent three hours toiling on your next Arduino project, and FINALLY, you’re ready to give your sketch a whirl. Get 10 tips every new Arduino coder should know ➜

Arduino wire library source