Errors installing webpack

I'm getting the following errors while trying to install webpack and it's not installing. I've tried npm update, npm cache clean, uninstalling and reinstalling angular-cli and I still get the following errors. What's the problem here? How can I resolve this?

package@1.0.0 /Users/monkey
└── webpack@2.3.3 

npm WARN angular2@2.0.0-beta.14 requires a peer of es6-shim@^0.35.0 but none was installed.
npm WARN angular2@2.0.0-beta.14 requires a peer of reflect-metadata@0.1.2 but none was installed.
npm WARN angular2@2.0.0-beta.14 requires a peer of rxjs@5.0.0-beta.2 but none was installed.
npm WARN angular2@2.0.0-beta.14 requires a peer of zone.js@^0.6.6 but none was installed.
npm WARN angular2-jwt@0.1.28 requires a peer of @angular/core@^2.0.0 but none was installed.
npm WARN angular2-jwt@0.1.28 requires a peer of @angular/http@^2.0.0 but none was installed.
npm WARN angular2-jwt@0.1.28 requires a peer of rxjs@^5.0.0 but none was installed.
npm WARN package@1.0.0 No repository field.
npm WARN The package webpack is included as both a dev and production dependency.

via Agent Zebra