如何解决npm WARN package.json ...没有README数据

Question

When I run the following command

npm install

I get the following errors:

npm WARN package.json karma-chrome-launcher@0.1.4 No README data
npm WARN package.json karma-coffee-preprocessor@0.2.1 No README data
npm WARN package.json karma-phantomjs-launcher@0.1.4 No README data
npm WARN unmet dependency /myproj/node_modules/grunt requires lodash@'~0.9.2' but will load
npm WARN unmet dependency /myproj/node_modules/lodash
npm WARN unmet dependency which is version 2.4.1
npm WARN unmet dependency /myproj/node_modules/grunt-usemin requires lodash@'~1.0.1' but will load
npm WARN unmet dependency /myproj/node_modules/lodash
npm WARN unmet dependency which is version 2.4.1
grunt-build-control@0.1.3 node_modules/grunt-build-control
└── shelljs@0.2.6

What do they mean and how do I resolve them?

Answer 1

The README.md is provided by all of the above projects.

So it is an error on your side. It could very well be that you have saved as dependency, if so you need to change your package.json, but we don't do stuff manually, let npm handle it:

Remove packages from project dependencies

npm remove karma-chrome-launcher karma-firefox-launcher karma-cofee-preprocessor karma-phantomjs-launcher --save

Add packages from project devDependecies

Then install as dev dependency as descirbed on the project pages with

npm install karma-chrome-launcher karma-firefox-launcher karma-cofee-preprocessor karma-phantomjs-launcher --save-dev

Answer 2

As mentioned in comments above, these warnings:

npm WARN package.json karma-chrome-launcher@0.1.4 No README data
npm WARN package.json karma-coffee-preprocessor@0.2.1 No README data
npm WARN package.json karma-phantomjs-launcher@0.1.4 No README data

are telling you that the maintainer(s) of karma-chrome-launcher, karma-coffee-preprocessor, karma-phantomjs-launcher have not supplied README.md files for their projects.

To solve the problem, you would need to find the package on github and submit a pull request to provide README.md, which the maintainers would probably be happy to accept. ;-)

EDIT: 2015-03-26

$ npm pack karma-chrome-launcher@0.1.4 $ tar tzf karma-chrome-launcher-0.1.4.tgz package/package.json package/LICENSE package/index.js