npm install is not adding all dependencies

问题

I issue npm install protractor.

Under /path/to/node_modules/protractor/node_modules, i was expecting all the internal dependencies of protractor npm. But i am seeing only one module, q.

However in /path/to/node_modules/protractor/package.json, i can see all dependencies of protractor listed as,

  "dependencies": {
    "adm-zip": "0.4.4",
    "glob": "~3.2",
    "jasmine": "2.3.2",
    "jasminewd2": "0.0.6",
    "lodash": "~2.4.1",
    ...................
}

Protractor module is versioned "3.0.0" and npm is versioned 3.3.12, node.js is versioned v5.1.0.

What has changed in these new versions? Since, all npm modules used to maintain their own dependency copies.

回答1:

npm 3 flattens the dependency tree, so you should see protractor's dependencies in /path/to/node_modules.

If you don't see them there, my first guess is that you might have an npm-shrinkwrap.json file that is preventing modules from being installed, so you could check for that.

来源：https://stackoverflow.com/questions/34439079/npm-install-is-not-adding-all-dependencies