How to fix Duplicate Facebook pixel ID error?

Question

Added facebook pixel like they showed here here Now getting an error:

fbevents.js:9 Facebook Pixel Error: Duplicate Pixel ID: some-pixel-id

Canno

Answer 1

You should simply check if fbq is undefined before calling init.

if (typeof fbq === 'undefined') {
    fbq('init', 'your-pixel-ID');
}

Please note: don't wrap the full script with this if statement!