fix(nextjs): Avoid importing SentryWebpackPlugin in dev mode
#8557
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As reported in #8541, our NextJS SDK currently breaks dev mode for the newest NextJS 13.4.10 version I have absolutely no idea which of the changes in [13.4.10](https://github.com/vercel/next.js/releases/tag/v13.4.10) is causing this. However, I traced the error back and it happens as soon as our NextJS SDK package requires @sentry/webpack-plugin: * @sentry/nextjs calls `require('@sentry/webpack-plugin')` * @sentry/webpack-plugin calls `const { RawSource } = require('webpack-sources');` * For _whatever_ reason, NextJS can't require `webpack-sources` and throws 💥 Since we don't enable our Webpack plugin [in dev mode](https://github.com/getsentry/sentry-javascript/blob/723f851f358b75cd39da353804c51ff27ebb0c11/packages/nextjs/src/config/webpack.ts#L305) anyway, one way to get rid of this error is to only require it if we're _not_ in dev mode. This hotfix therefore moves the top-level require of `@sentry/webpack-plugin` to a dynamic require. This isn't a great solution and honestly quite ugly but if it unblocks users for now I'd say we merge it. I think we should definitely revisit this though once we know more about why NextJS suddenly isn't able to import `webpack-sources`. ref #8541
mydea
approved these changes
Jul 17, 2023
AbhiPrasad
approved these changes
Jul 17, 2023
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This fix was already reviewed, merged and released in the last beta. This PR will now merge it into
developto make it available with the next official release. Thanks to the users who tested the beta released and confirmed that it is working.As reported in #8541, our NextJS SDK currently breaks dev mode for the newest NextJS 13.4.10 version
I still have absolutely no idea which of the changes in
13.4.10 is causing this.
However, I traced the error back and it happens as soon as our NextJS SDK package requires @sentry/webpack-plugin:
require('@sentry/webpack-plugin')const { RawSource } = require('webpack-sources');webpack-sourcesand throws 💥Since we don't enable our Webpack plugin in dev
mode anyway, one way to get rid of this error is to only require it if we're not in dev mode.
This hotfix therefore moves the top-level require of
@sentry/webpack-pluginto a dynamic require. This isn't a great solution and honestly quite ugly but if it unblocks users for now I'd say we merge it. I think we should definitely revisit this though once we know more about why NextJS suddenly isn't able to importwebpack-sources.cc @lforst once you're back, maybe we can revisit this together.
closes #8541