Expected primary-expression before 'if' *HELP PLEASE*

Projects Programming
1

I'm programming a project to have a line of leds blink back and forth and for a person to press a button and try to get the led to stop on the middle (target) led. My program gets an error that says "Expected primary-expression before 'if'" could anyone help as soon as possible? thanks!

_7_LED_Loop.ino (1.46 KB)

2 
  for int thisPin = 8;

Huh?

3 
 // use a for loop to initialize each pin as an output:
  for (int thisPin = 5; thisPin < 12; thisPin++)  {
    pinMode(thisPin, OUTPUT); 
    int buttonState = 0;        // variable for reading the pushbutton status
const int buttonPin = 2;     // the number of the pushbutton pin
  }

buttonState and buttonPin are local variables (inside the braces). Since you aren't using them there isn't much point in having them.

    if buttonState == HIGH

Better read up on the syntax of the C++ language. Or look at some examples. Or both.

4

Hi, welcome to the forum.

Your indents (the text layout) is not consistent. So it is hard to see that you have code outside the loop() function. There Arduino has a auto-format function, it is in the menu.

This should not be in setup(), but above it: const int buttonPin = 2;
This is wrong: for int thisPin = 8;
And also the next line.

(Nick Gammon wrote about the same, while I was writing this)