Describes the cause and action for error messages.
Error Message(English)：
npm install from github missing files
npm install from a git repo leaves a pretty blank package?
https://stackoverflow.com/questions/46619788/npm-install-from-a-git-repo-leaves-a-pretty-blank-packa・・・
How to install an npm package from GitHub directly?
https://stackoverflow.com/questions/17509669/how-to-install-an-npm-package-from-github-directly
node.js - Missing directories and files on npm install
https://stackoverflow.com/questions/40560334/missing-directories-and-files-on-npm-install
npm install from git url missing some files
https://stackoverflow.com/questions/40210560/npm-install-from-git-url-missing-some-files
Missing directories and files on npm install - Stack Overflow
https://stackoverflow.com/questions/40560334/missing-directories-and-files-on-npm-install/40560948
src folder is missing after npm install ・ Issue #2 ・ vuejs/vuefire ・ GitHub
https://github.com/vuejs/vuefire/issues/2
NPM package is broken when installing from a github url ・ Issue #20 ...
https://github.com/tleunen/react-mdl/issues/20
Cannot npm install from git URL ・ Issue #99 ・ clutchski/coffeelint ・ GitHub
https://github.com/clutchski/coffeelint/issues/99
Can't install npm dependency from git repository ・ Issue #1013 ・ zeit ...
https://github.com/zeit/now-cli/issues/1013