How to make the IDE understand paths?

Question

webstorm

Hello everyone, version 2020.2, but in principle, older ones also have this problem.
How to teach an IDE to understand and autocomplete paths.
The Vue framework, installed according to the classics 'vue create' via the console

, but if you write it like that, everything is OK, though the path is not correct and the picture does not show

, please tell me where you can fix it, in principle, I can register the paths with pens, it's really annoying that he constantly highlights they say an error the path is not correct

Answer 1

Make the folder containing the sources as Source Root by clicking on the folder in the project tree, then Mark Directory As.