Rollup does not include imported code in the bundle.

Rollup Version

3.17.3

Operating System (or Browser)

Linux

Node Version (if applicable)

v18.13.0

Link To Reproduction

https://stackblitz.com/edit/rollup-repro-afbkru?file=package.json,rollup.config.js,src%2Fmain.js

Expected Behaviour

The output bundle should contain code based on the code that is installed. buffer is clearly available, inside node_modules (see the file system in the reproduction).

~/projects/rollup-repro-afbkru
❯ ls node_modules/buffer/
AUTHORS.md    README.md     index.js      
LICENSE       index.d.ts    package.json 

Actual Behaviour

It ignores the valid code, does not produce a bundle containing that code, and tells people to go try and install something else:

(!) Missing shims for Node.js built-ins
Creating a browser bundle that depends on "buffer". You might need to include https://github.com/FredKSchott/rollup-plugin-polyfill-node

Use "output.globals" to specify browser global variable names corresponding to external modules:
buffer (guessing "buffer")

Rollup should not block the import of buffer, which is valid code and is present in node_modules.

Start with the linked StackBlitz reproduction, reading package.json, rollup.config.js, and src/main.js together. Run the reported Rollup 3.17.3 build on Node 18 and compare the generated bundle and warning with the expected behavior. Done means the reproduction's imported buffer code is handled according to the issue's stated expectation, with a regression test or documented limitation if applicable.