What does “The code generator has deoptimised the styling of [some file] as it exceeds the max of ”100KB“” mean?

Question

I added a new npm package to my project and require it in one of my modules.

Now I get this message from webpack,

build modulesNote: The code generator

Answer 1

This is maybe not the case of original OP question, but: if you exceeds the default max size, this maybe a symptom of some other issue you have. in my case, I had the warrning, but finally it turned into a FATAL ERROR: MarkCompactCollector: semi-space copy, fallback in old gen Allocation failed - JavaScript heap out of memory. the reason was that i dynamically imported the current module, so this ended up with an endless loop...