When we verify this code, this line is telling the Arduino IDE compiler, “Hey, for this program to work, you need to go get this file called servo.h”. Let’s lay down some scrutiny on this accursed line 10. Now that we know what’s going on a bit better, let’s get down to the business of implementing a fix. So this thing, “Servo.h.” That’s the thing we need to fix, and thanks to line 2, we know where to find it. It says, “servo.h: No such file or directory”. The first number is usually the more helpful of the two because you can use it to locate the error in your sketch. The “19” is telling you the length of the line of code in spaces and characters. The “10” in this example is telling you the error occurred on line 10 of your sketch.
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.
