process no respond after 'npm run dev'

[vajrabisj]

after running npm run dev, following warning pop up:
There are multiple modules with names that only differ in casing.
This can lead to unexpected behavior when compiling on a filesystem with other case-semantic.
Use equal casing. Compare these module identifiers:

and then list many .js file name, and then over and over again...

how to resolve? thx.