beforeSend threw an error, will not send event

Sentry SDK and version: “@sentry/browser”: “5.15.5”,

in index.js, which runs reactDOM.render:

import { init } from '@sentry/browser';

init({
	dsn: process.env.SENTRY_DSN,
	environment: process.env.NODE_ENV,
	release: process.env.SHORT_SHA,
	debug: true,
});

Debug output:

It seems like init happens twice, or at least that the error logs are duplicated. I have ensured that all three env vars are defined and that I only call init once.

It’s a bit curious since I haven’t implemented my own beforeSend. If I implement beforeSend and log (event, hint), it’s not logged at all.

What is the cause of this error? Any ideas on how I can troubleshoot this?

[preciselywilliam]

Finally found the issue: our segment.io snippet made inited Sentry a second time. Thank you for helping with troubleshooting!!! @kamilogorek

[raid5]

I upgraded from @sentry/react-native 1.2.0 to 3.4.3 and the issue went away.