TypeError: Cannot read properties of undefined (reading 'sentry') for Next.js site with Sentry - Stack Overflow

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Trying to deploy a nextjs website with Sentry monitoring on hostinger. Sentry works when running locally, and the site doesnt crash, but it errors out and crashes when deployed on hostinger: console error screenshot

512-fd82f752a414c660.js:525 TypeError: Cannot read properties of undefined (reading 'sentry')
    at 164.1b37e5fe1265aae3.js:1:21471
    at Array.reduce (<anonymous>)
    at q (164.1b37e5fe1265aae3.js:1:21456)
    at n (164.1b37e5fe1265aae3.js:1:34922)
    at 164.1b37e5fe1265aae3.js:17:64552
    at oO (164.1b37e5fe1265aae3.js:17:67668)
    at oA (164.1b37e5fe1265aae3.js:17:63598)
    at 164.1b37e5fe1265aae3.js:17:63405
    at oP (164.1b37e5fe1265aae3.js:17:63412)
    at ov (164.1b37e5fe1265aae3.js:17:60278)
    at og (164.1b37e5fe1265aae3.js:17:58850)
    at S (164.1b37e5fe1265aae3.js:25:1364)
    at MessagePort.T (164.1b37e5fe1265aae3.js:25:1894)

nowhere in my code is .sentry called on any object. This is what my sentry.client.config.ts looks like

Sentry.init({
    dsn: "https://c14ecceb9e4b2cb37fcf625c50cb91db@o4508458061332480.ingest.us.sentry.io/4508458063233024",

    integrations: [
        Sentry.replayIntegration(),
        Sentry.feedbackIntegration({
            // Additional SDK configuration goes in here, for example:
            colorScheme: "dark",
        }),
    ],

production, or use tracesSampler for greater control.
    tracesSampleRate: 1,

while
    replaysSessionSampleRate: 1.0,
    replaysOnErrorSampleRate: 1.0,
    debug: false,
});

screenshot for at 164.1b37e5fe1265aae3.js:1:21471 in dev tools sources

Trying to deploy a nextjs website with Sentry monitoring on hostinger. Sentry works when running locally, and the site doesnt crash, but it errors out and crashes when deployed on hostinger: console error screenshot

512-fd82f752a414c660.js:525 TypeError: Cannot read properties of undefined (reading 'sentry')
    at 164.1b37e5fe1265aae3.js:1:21471
    at Array.reduce (<anonymous>)
    at q (164.1b37e5fe1265aae3.js:1:21456)
    at n (164.1b37e5fe1265aae3.js:1:34922)
    at 164.1b37e5fe1265aae3.js:17:64552
    at oO (164.1b37e5fe1265aae3.js:17:67668)
    at oA (164.1b37e5fe1265aae3.js:17:63598)
    at 164.1b37e5fe1265aae3.js:17:63405
    at oP (164.1b37e5fe1265aae3.js:17:63412)
    at ov (164.1b37e5fe1265aae3.js:17:60278)
    at og (164.1b37e5fe1265aae3.js:17:58850)
    at S (164.1b37e5fe1265aae3.js:25:1364)
    at MessagePort.T (164.1b37e5fe1265aae3.js:25:1894)

nowhere in my code is .sentry called on any object. This is what my sentry.client.config.ts looks like

Sentry.init({
    dsn: "https://c14ecceb9e4b2cb37fcf625c50cb91db@o4508458061332480.ingest.us.sentry.io/4508458063233024",

    integrations: [
        Sentry.replayIntegration(),
        Sentry.feedbackIntegration({
            // Additional SDK configuration goes in here, for example:
            colorScheme: "dark",
        }),
    ],

production, or use tracesSampler for greater control.
    tracesSampleRate: 1,

while
    replaysSessionSampleRate: 1.0,
    replaysOnErrorSampleRate: 1.0,
    debug: false,
});

screenshot for at 164.1b37e5fe1265aae3.js:1:21471 in dev tools sources

• next.js
• sentry

Share Improve this question Follow edited Mar 17 at 7:56 Toasty asked Mar 17 at 7:22 ToastyToasty 322 bronze badges 4

• Please provide enough information for us to help you debugging. Simply search for .sentry in your source code and past the result here. For example, if you find obj.sentry in your code, this error is caused by the variable obj being undefined. – Gusi Gao Commented Mar 17 at 7:32
• I've done that and there is nowhere in my code where .sentry is accessed on anything. – Toasty Commented Mar 17 at 7:37
• Can you use the debugging tool in the browser to figure out the calling stack when this exception is thrown (at at 164.1b37e5fe1265aae3.js:1:21471)? – Gusi Gao Commented Mar 17 at 7:45
• yes I've added a screenshot – Toasty Commented Mar 17 at 7:56

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1 Answer 1

Sorted by: Reset to default 0

This is potentially caused by the reactComponentAnnotation option of the Sentry SDK in your next.config.js. It appends properties to components and if the properties are iterated either by a library or your own code it may sometimes lead to errors.

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