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ReferenceError: el documento no está definido salió con código = 1 en 0.107 segundos

Lo siento si es una pregunta de novato, acabo de comenzar a codificar html, css y javascript y encontré este error:

ReferenceError: el documento no está definido ** -> este problema solo está en vscode, cuando ejecuto esta misma línea en la consola de Google, funciona, ahora mi pregunta es que llamé a la función de aumento, cuando hago clic en INCREMENT en el sitio web, debería ser como 0,1,2,3

 ``` count = 0; let constEl = document.getElementById("coun"); function increase() { count += 1; console.log("CLICKED!"); constEl.textContent = count; console.log(constEl); } ```
 ~~~<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8" /> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" /> <title>People Counter</title> <link rel="stylesheet" href="style.css" /> </head> <body> <h1>People entered:</h1> <h2 id="coun">0</h2> <button id="add_btn" onclick="increase">INCREMENT</button> <button id="save_btn">Save</button> <script src="counter.js"></script> </body> </html>~~~
Mi código CSS-

 body { margin: 0; border: 0; background-image: url("station.jpg"); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif; font-weight: bolder; background-size: cover; text-align: center; } h1 { margin-top: 10px; margin-bottom: 10px; text-align: center; font-size: 3rem; } #counter_el { text-align: center; text-transform: capitalize; font-size: 4rem; margin: 0; border: 0ch; } button { size: 2px; font-family: "Gill Sans", "Gill Sans MT", Calibri, "Trebuchet MS", sans-serif; } #add_btn:hover { background-color: limegreen; color: white; } #add_btn { border: 2px solid limegreen; color: black; transition-duration: 0.4s; border-radius: 2px; } #save_btn { border: 2px solid red; transition-duration: 0.4s; border-radius: 2px; } #save_btn:hover { background-color: red; color: white; }```
about 4 years ago · Juan Pablo Isaza
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