npm list 不显示已安装的包

Question

I'm having trouble understanding npm . I have a node.js project with react , but I am not able to find the latter with npm list .

I certainly have it installed, because my project using react works.

I also have it in my package.json file under "dependencies":

"dependencies": {
    "react": "^16.4.1"
}

Also, if I search for react on my drive, I find the module for it in my project folder:

user/Dev/project/node_modules/react

However, if I do npm list react , I get nothing:

me ~/D/project> npm list react
project@0.1.0 /Users/me/Dev/project
└── (empty)

Even if I do npm install or even specifically npm install react --save , no change.

Nor is the package listed with npm list or npm list -g (with or without --depth=0 ), except I get further indications that npm does not 'see' the react module:

UNMET PEER DEPENDENCY react@16.4.1

I'm using npm v5.6.0 .

Any ideas?

Answer 1

I fixed this by running npm update command. (If that doesn't work try to delete node_modules and package-lock.json prior to running npm_update )

Answer 2

I'm having trouble understanding npm . I have a node.js project with react , but I am not able to find the latter with npm list .

I certainly have it installed, because my project using react works.

I also have it in my package.json file under "dependencies":

"dependencies": {
    "react": "^16.4.1"
}

Also, if I search for react on my drive, I find the module for it in my project folder:

user/Dev/project/node_modules/react

However, if I do npm list react , I get nothing:

me ~/D/project> npm list react
project@0.1.0 /Users/me/Dev/project
└── (empty)

Even if I do npm install or even specifically npm install react --save , no change.

Nor is the package listed with npm list or npm list -g (with or without --depth=0 ), except I get further indications that npm does not 'see' the react module:

UNMET PEER DEPENDENCY react@16.4.1

I'm using npm v5.6.0 .

Any ideas?