The term UX is also applicable to the process of software development. And error messages are quite important.
Search for this text:
Module not found: Error: Can't resolve ...
and discover how many people have hit this problem, which probably won't occur, if message was augmented with this:
Maybe you meant the relative path rather than the module.
Another example is here: Let's name function Seq.take
similar to Enumerable.Take, but change its semantics, so it throws, if sequence has fewer than n elements.
Again, error message contains no hints, but it could do better by adding:
Consider 'Seq.truncate' function to get no more than
nelements.