PlatformIO Community

Error: 'num_2' does not name a type


#1

Hi folks,

Baby steps to PlatformIO for Arduino development. Let’s start with a simple question:

I think you gonna be surprised but the following code throws an error when compiling:

#include <Arduino.h>

const int num_1 = 15;
int num_2 = 0;

num_2 = 10;

void setup() {
  // put your setup code here, to run once:
}

void loop() {
  // put your main code here, to run repeatedly:
}

Error is:
src/main.cpp:6:1: error: ‘num_2’ does not name a type

num_2 = 10;

^

*** [.pioenvs/uno/src/main.cpp.o] Error 1

It works on Arduino IDE as it supposed to be. I think there are some differences when you code in PlatformIO comparing to Arduino IDE.

What might be the problem?


#2

I’m not sure why it compiled in the IDE, but the statement that’s giving you an error needs to be inside a function so that it can be executed, such as setup().


#3

I think you’ll also be surprised that it actually doesn’t work in the Arduino IDE as listed! :open_mouth:

But yes, the statement in question on line 6 is invalid - anything other than the initial assignment should be inside a function… either setup(), loop() or some other one you write.