ModuleNotFoundError: Module not found: Error: Can't resolve 'pnpapi'

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Package + Version

• @sentry/browser
• @sentry/node
• raven-js
• raven-node (raven for node)
• other:

Version:

"@sentry/nextjs": "6.4.1",

Description

When we include import * as Sentry from '@sentry/nextjs' anywhere within the app - it throws this ModuleNotFoundError: Module not found: Error: Can't resolve 'pnpapi' this error on build yarn run build - FWIW - we are still on webpack4

[ani4aniket]

@AbhiPrasad, Thanks for the solution, changing the target to experimental-serverless-trace works but if the project is deployed on Netlify failed while running netlify build. Hoping to get some solution.

[AbhiPrasad]

Hey @followbl, thanks for the detailed config. It seems the issue is related to the target: serverless in your webpack config. It seems that Vercel folks prefer the experimental-serverless-trace target over theserverless target. Vercel Now also uses experimental-serverless-trace now from what I see.

See the PR adding experimental-serverless-trace to the nextjs repo for more details around this.

Could you try replacing the serverless target with experimental-serverless-trace and seeing if the build errors still occur? This fixes it on our end.

diff --git a/next.config.js b/next.config.js
index 98944a6..72dfa74 100644
--- a/next.config.js
+++ b/next.config.js
@@ -101,7 +101,7 @@ const nextJsConfig = {
       ];
     },
   },
-  target: 'serverless',
+  target: 'experimental-serverless-trace',
   webpack: (config, options) => {
     if (!options.dev && options.isServer) {
       // we're in build mode so enable shared caching for the GitHub API

If the serverless target is required for your setup, please let us know and we can continue investigating, but the experimental-serverless-trace target should cover all the use cases.