看评论说新版本要使用 npm start开启服务。但是我在执行这句的时候报错。

> @0.0.1 start F:\workspaaces

> node server.js --env=dev

module.js:327

    throw err;

    ^

Error: Cannot find module 'core-js/fn/object/assign'

    at Function.Module._resolveFilename (module.js:325:15)

    at Function.Module._load (module.js:276:25)

    at Module.require (module.js:353:17)

    at require (internal/module.js:12:17)

    at Object.<anonymous> (F:\workspaaces\server.js:3:1)

    at Module._compile (module.js:409:26)

    at Object.Module._extensions..js (module.js:416:10)

    at Module.load (module.js:343:32)

    at Function.Module._load (module.js:300:12)

    at Function.Module.runMain (module.js:441:10)

npm ERR! Windows_NT 10.0.10586

npm ERR! argv "G:\\bzyj\\nodejs\\node.exe" "G:\\bzyj\\nodejs\\node_modules\\npm\                                                                                                                                                                                               \bin\\npm-cli.js" "start"

npm ERR! node v4.4.3

npm ERR! npm  v2.15.1

npm ERR! code ELIFECYCLE

npm ERR! @0.0.1 start: `node server.js --env=dev`

npm ERR! Exit status 1

npm ERR!

npm ERR! Failed at the @0.0.1 start script 'node server.js --env=dev'.

npm ERR! This is most likely a problem with the  package,

npm ERR! not with npm itself.

npm ERR! Tell the author that this fails on your system:

npm ERR!     node server.js --env=dev

npm ERR! You can get information on how to open an issue for this project with:

npm ERR!     npm bugs

npm ERR! Or if that isn't available, you can get their info via:

npm ERR!

npm ERR!     npm owner ls

npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:

npm ERR!     F:\workspaaces\npm-debug.log