无法使用我的package.json安装依赖包

Question

I have a package.json but when I try to run it in my command console I got this error:

$ npm install
npm ERR! install Couldn't read dependencies
npm ERR! Windows_NT 5.1.2600
npm ERR! argv "C:\\Program Files (x86)\\nodejs\\\\node.exe" "C:\\Program Files (x86)\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "install"
npm ERR! node v0.12.2
npm ERR! npm  v2.7.4

npm ERR! Invalid version: "0.1"
npm ERR!
npm ERR! If you need help, you may report this error at:
npm ERR!     <https://github.com/npm/npm/issues>

npm ERR! Please include the following file with any support request:
npm ERR!     F:\UwAmp\www\nodejs\express\npm-debug.log

Here's my package.json

{
    "name": "Express101",
    "version": "0.1",
    "description": "This is a practice demo for express node",
    "main": "app.js",
    "author": {
        "name": "Juan Dela Cruz",
        "email": "jdcruz01@gmail.com"
    },
    "dependencies": {
        "express": "^4.13.3",
        "jade": "^1.11.0"
    }
}

Can you help me with this? It says that I have an error in the version part.

Answer 1

The answer is in the error message:

npm ERR! Invalid version: "0.1"

In your package.json , you have this:

"version": "0.1",`

You need to format this to meet the semver requirements (see the npm package.json docs and the node-semver repo ). Add a 0 in front ( 0.0.1 ) and your error should vanish.