What to do with peer dependency?

Question

Angular

Hello. Trying to deploy https://github.com/robwormald/ng-universal-demo. I do npm install. It all ended up like this:

nodejs_1  | npm ERR! network read ECONNRESET
nodejs_1  | npm ERR! network This is most likely not a problem with npm itself
nodejs_1  | npm ERR! network and is related to network connectivity.
nodejs_1  | npm ERR! network In most cases you are behind a proxy or have bad network settings.
nodejs_1  | npm ERR! network
nodejs_1  | npm ERR! network If you are behind a proxy, please make sure that the
nodejs_1  | npm ERR! network 'proxy' config is set properly.  See: 'npm help config'
nodejs_1  | npm ERR! Linux 4.4.59-boot2docker
nodejs_1  | npm ERR! argv "/usr/local/bin/node" "/usr/local/bin/npm" "install"
nodejs_1  | npm ERR! node v7.9.0
nodejs_1  | npm ERR! npm  v4.2.0
nodejs_1  | npm ERR! code ECONNRESET
nodejs_1  | npm ERR! errno ECONNRESET
nodejs_1  | npm ERR! syscall read

Found advice not to use HTTPS: npm install --registry http://registry.npmjs.org. Immediately the question is, what is the reason for this phenomenon? Could this be due to the fact that Node is installed in a Docker container in a virtual machine. Connection problems occur only here. I write in PHP, packages through Composer are put with a bang.
Everything seems to be better without HTTPS, but it still ends with WARNings:

nodejs_1 | +— UNMET PEER DEPENDENCY @angular/[email protected] 
nodejs_1 | +— [email protected] 
nodejs_1 | | +— [email protected] 
nodejs_1 | | `— [email protected] 
nodejs_1 | `— UNMET PEER DEPENDENCY [email protected] 
nodejs_1 | 
nodejs_1 | npm WARN optional SKIPPING OPTIONAL DEPENDENCY: [email protected]^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 [email protected]^0.8.4 but none was installed. 
nodejs_1 | npm WARN @angular/[email protected] requires a peer of @angular/[email protected] but none was installed. 
nodejs_1 | npm WARN [email protected] No description 
nodejs_1 | npm info ok

As I understand it, fseventsyou can close your eyes or just add it --no-optionalto the installation command. As for peer dependency , I read that they need to be installed by hand. I do in the same folder:

npm install @angular/core zone.js @angular/platform-server @angular/animations —registry http://registry.npmjs.org

Again, everything ends with a portion of WATNings:

nodejs_1 | +— UNMET PEER DEPENDENCY @angular/[email protected] 
nodejs_1 | +— UNMET PEER DEPENDENCY @angular/[email protected] (git://github.com/angular/core-builds.git#aae8cc4ee6219598ef..) 
nodejs_1 | +— @angular/[email protected] (git://github.com/angular/platform-server-builds.git#660f563..) 
nodejs_1 | `— UNMET PEER DEPENDENCY [email protected] 
nodejs_1 | 
nodejs_1 | npm WARN optional SKIPPING OPTIONAL DEPENDENCY: [email protected]^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 [email protected]^0.8.4 but none was installed. 
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 @angular/[email protected] but none was installed. 
nodejs_1 | npm WARN [email protected] No description 
nodejs_1 | npm info ok

Thanks for the help.