Some dependencies none was installed

[krivochenko]

I clone this repo and run npm install --registry http://registry.npmjs.org/
In the end I got warnings:

nodejs_1  | npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@^1.0.0 (node_modules/chokidar/node_modules/fsevents):
nodejs_1  | npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for [email protected]: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
nodejs_1  | npm WARN @angular/[email protected] requires a peer of @angular/[email protected] but none was installed.
nodejs_1  | npm WARN @angular/[email protected] requires a peer of zone.js@^0.8.4 but none was installed.
nodejs_1  | npm WARN [email protected] No description

As I know, I can skip warnings about optional dependencies. But what about @angular/[email protected] and zone.js@^0.8.4

[krivochenko]

I use NPM 4.1.2 and Node 7.7.3