Production build fails only on Gitlab CI

[RafalFilipek]

I know how it sounds.

My app is using SPA mode (ssr: false). It works well locally, and I don't have any problems building it on my machine. Just pnpm build and everything works as expected.

But for some completely unknown reason, the same process fails with this error:

My first thought was, "Let's try to reproduce this locally". So I created a simple Docker file with the same spec:

• node:20-alpine (20.15.0)
• pnpm 9.1.2
• latest remix version

And it works flawlessly.

I'm stuck. I extracted some data from this error:

at enhanceRollupError (dep-C1-ZB6nQ.js:65605:15)

This is some internal Rollup error parsing / formatting function

at Module.build dep-C1-ZB6nQ.js:65743:5)

prepareOutDir(resolvedOutDirs, emptyOutDir, config);

Thank you for your help,

Rafał

[RafalFilipek]

OK, the problem was that I did not set up env variables in GitLab CI. Totally my fault, but it's interesting how build process fails in such case.