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What does it do when I run this command:
npm install --save-dev package1 package2 It is definitely not installing multiple packages, but it looks to be essential. (For example https://www.browsersync.io/docs/gulp)
For me it throws following ERRs:
C:\1HLAVNI\Lukas\Webdesign\lukasradek>npm install --save-dev gulp-babel gulp-add-src > [email protected] install C:\1HLAVNI\Lukas\Webdesign\lukasradek\node_modules\bufferutil > node-gyp rebuild C:\1HLAVNI\Lukas\Webdesign\lukasradek\node_modules\bufferutil>if not defined npm_config_node_gyp (node "C:\Program Files\nodejs\node_modules\npm\bin\node-gyp-bin\\..\..\node_modules\node-gyp\bin\node-gyp.js" rebuild ) else (node "" rebuild ) gyp ERR! configure error gyp ERR! stack Error: Can't find Python executable "python", you can set the PYTHON env variable. gyp ERR! stack at failNoPython (C:\Program Files\nodejs\node_modules\npm\node_modules\node-gyp\lib\configure.js:401:14) gyp ERR! stack at C:\Program Files\nodejs\node_modules\npm\node_modules\node-gyp\lib\configure.js:356:11 gyp ERR! stack at FSReqWrap.oncomplete (fs.js:123:15) gyp ERR! System Windows_NT 10.0.10586 gyp ERR! command "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\node_modules\\node-gyp\\bin\\node-gyp.js" "rebuild" gyp ERR! cwd C:\1HLAVNI\Lukas\Webdesign\lukasradek\node_modules\bufferutil gyp ERR! node -v v6.3.1 gyp ERR! node-gyp -v v3.3.1 gyp ERR! not ok npm WARN install:[email protected] [email protected] install: `node-gyp rebuild` npm WARN install:[email protected] Exit status 1 > [email protected] install C:\1HLAVNI\Lukas\Webdesign\lukasradek\node_modules\utf-8-validate > node-gyp rebuild C:\1HLAVNI\Lukas\Webdesign\lukasradek\node_modules\utf-8-validate>if not defined npm_config_node_gyp (node "C:\Program Files\nodejs\node_modules\npm\bin\node-gyp-bin\\..\..\node_modules\node-gyp\bin\node-gyp.js" rebuild ) else (node "" rebuild ) gyp ERR! configure error gyp ERR! stack Error: Can't find Python executable "python", you can set the PYTHON env variable. gyp ERR! stack at failNoPython (C:\Program Files\nodejs\node_modules\npm\node_modules\node-gyp\lib\configure.js:401:14) gyp ERR! stack at C:\Program Files\nodejs\node_modules\npm\node_modules\node-gyp\lib\configure.js:356:11 gyp ERR! stack at FSReqWrap.oncomplete (fs.js:123:15) gyp ERR! System Windows_NT 10.0.10586 gyp ERR! command "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\node_modules\\node-gyp\\bin\\node-gyp.js" "rebuild" gyp ERR! cwd C:\1HLAVNI\Lukas\Webdesign\lukasradek\node_modules\utf-8-validate gyp ERR! node -v v6.3.1 gyp ERR! node-gyp -v v3.3.1 gyp ERR! not ok npm WARN install:[email protected] [email protected] install: `node-gyp rebuild` npm WARN install:[email protected] Exit status 1 [email protected] C:\1HLAVNI\Lukas\Webdesign\lukasradek +-- [email protected] | +-- [email protected] | | `-- [email protected] | +-- [email protected] | | `-- [email protected] | `-- [email protected] | +-- [email protected] | `-- [email protected] | `-- [email protected] `-- [email protected] +-- [email protected] | +-- [email protected] | | `-- [email protected] | +-- [email protected] | | +-- [email protected] | | | `-- [email protected] | | `-- [email protected] | +-- [email protected] | +-- [email protected] | +-- [email protected] | | +-- [email protected] | | +-- [email protected] | | +-- [email protected] | | +-- [email protected] | | `-- [email protected] | | `-- [email protected] | +-- [email protected] | | `-- [email protected] | +-- [email protected] | | `-- [email protected] | +-- [email protected] | | +-- [email protected] | | +-- [email protected] | | | `-- [email protected] | | | `-- [email protected] | | `-- [email protected] | +-- [email protected] | | +-- [email protected] | | `-- [email protected] | +-- [email protected] | +-- [email protected] | +-- [email protected] | +-- [email protected] | +-- [email protected] | +-- [email protected] | +-- [email protected] | `-- [email protected] `-- [email protected] npm WARN optional Skipping failed optional dependency /chokidar/fsevents: npm WARN notsup Not compatible with your operating system or architecture: [email protected] npm WARN [email protected] No repository field.
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To install multiple packages, we need to use the npm install followed by the multiple package names separated by the spaces package1 package2 . This above command installs three packages, which are express, cors and body-parser. You can also checkout how to install the specific version of an npm package.
If you still want to update everything to the latest version, you can use the tool npm-update-all . It's as easy as running this command in your project folder. As you can see, npm-update-all will update all your packages to the latest version.
The npm install command allows the user to install a package. There are two types of installation: local install. global install.
By default, npm install will install all modules listed as dependencies in package. json .
Save as dependencies:
npm i package1 package2 Save as dev-dependencies:
npm i -D package1 package2 npm i --save-dev package1 package2 It is definitely not installing multiple packages
Why? You're installing package1 and package2 and marking them as devDependencies with --save-dev.
As stated in the documentation, you may combine multiple arguments, and even multiple types of arguments. In your case, you're combining 2 package names published on the registry.
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