'class HardwareSerial' has no member named 'printin'

Hi, I'd like to ask, why is there error that stated:
'class HardwareSerial' has no member named 'printin'?

Here's my code.

void setup() {



void loop() {

int sensorValue = analogRead(A0);


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CCing @232 because I know they love code tags:


It’s supposed to be:




Note the “l”, not “i”.

not "printin" but "println"

not upper "i -->I" but lower "L-->l"