event_not_declared

You listen to an event that is not in events in the manifest.

• Severity: Error: it blocks publishing the version.
• Where: Events, actions and texts

How to fix it

Add the name to events: the SDK only delivers declared events.

Wrong

// manifest.json: { "events": [] }
Widget.on("Twitch.Follow", () => {});

Right

// manifest.json: { "events": ["Twitch.Follow"] }
Widget.on("Twitch.Follow", () => {});