Digital read from switch not working

Trying to create pulses using switches, but when the switch is pressed it throws an error that the port is not connected. The read is not happening and hence the pulse could not be generated.

The code used is mentioned below
// https://www.arduino.cc/en/Tutorial/BuiltInExamples/Button

// constants won't change. They're used here to set pin numbers:
const int buttonPin = 2; // the number of the pushbutton pin
const int ledPin = 13; // the number of the LED pin

// variables will change:
int buttonState = 0; // variable for reading the pushbutton status

void setup() {
// initialize the LED pin as an output:
pinMode(ledPin, OUTPUT);
// initialize the pushbutton pin as an input:
pinMode(buttonPin, INPUT);
Serial.begin('9600');
pinMode(13, INPUT);
}

void loop() {
// put your main code here, to run repeatedly:
// read the state of the pushbutton value:
buttonState = digitalRead(buttonPin);
Serial.print("Hello");
// check if the pushbutton is pressed. If it is, the buttonState is HIGH:
if (buttonState == HIGH) {
// turn LED on:
digitalWrite(ledPin, HIGH);
} else {
// turn LED off:
digitalWrite(ledPin, LOW);
}

}

How is the button wired?

const int ledPin = 13; // the number of the LED pin

pinMode(ledPin, OUTPUT);

pinMode(13, INPUT);

:thinking:

What port are we talking about? your code does not use a connection to any port

What the pin 13 finally - input or output?

What, exactly, throws that error? Where do you see it?

Please post a schematic of how you have the buttons wired; also some good clear photos of your setup.

Please see 'How to get the best out of this forum'; in particular, ' Posting code and common code problems' and ' Schematics or circuit diagrams'