Os mantenedores daangular2-universal não atualizou seu site:

Problema 1)

typings install node express body-parser serve-static express-serve-static-core mime --ambient
typings ERR! deprecated The "ambient" flag is deprecated. Please use "global" instead

Problema 2)

    typings install node express body-parser serve-static express-serve-static-core mime --global
typings INFO globaldependencies "express" lists global dependencies on "node" that must be installed manually
typings INFO globaldependencies "body-parser" lists global dependencies on "node" that must be installed manually
typings ERR! message Unable to find "node" ("npm") in the registry.
typings ERR! message However, we found "node" for 2 other sources: "dt" and "env"
typings ERR! message You can install these using the "source" option.
typings ERR! message We could use your help adding these typings to the registry: https://github.com/typings/registry
typings ERR! caused by https://api.typings.org/entries/npm/node/versions/latest responded with 404, expected it to equal 200

typings ERR! cwd /Users/davidmontgomery/Documents/frontend/green
typings ERR! system Darwin 15.6.0
typings ERR! command "/usr/local/bin/node" "/usr/local/bin/typings" "install" "node" "express" "body-parser" "serve-static" "express-serve-static-core" "mime" "--global"
typings ERR! node -v v4.5.0
typings ERR! typings -v 1.3.3

typings ERR! If you need help, you may report this error at:
typings ERR!   <https://github.com/typings/typings/issues>

Como eu resolvo? Eu estou usando um mac.