what does "additional logging output above" mean in npm?

Question

"This is probably not a problem with npm. There is likely additional logging output above".

What does this mean and how can I resolve this error?

It also shows the following:

npm ERR! code ELIECYCLE
npm ERR! errno 1

Answer 1

It means that npm recognizes that a problem occurred and there should usually be a lot of logging output before this line in your console.

above means „vertically above“ on the screen.

What causes this?

I‘d reckon:

You did something wrong in your code presumably in the HTML-part and the compiler now throws an error.