Event handlers server component Next.js

Why This Happens

In Next.js, onclick and other handlers don't work in server components. This is one of the most common Next.js errors developers encounter. Understanding the root cause helps you fix it quickly and prevent it from recurring.

The Problem

export default function Page() {
  return <button onClick={() => alert('hi')}>Click</button>;
}

The Fix

'use client';
export default function Page() {
  return <button onClick={() => alert('hi')}>Click</button>;
}

Step-by-Step Fix

1. 1

   Identify the error

   Look at the error message: Event handlers cannot be passed to Server Components. This tells you exactly what went wrong.

2. 2

   Find the cause

   Check the stack trace to find which line of your Next.js code triggered this error.

3. 3

   Apply the fix

   Use the corrected code pattern shown above. Test to confirm the error is resolved.