node.js Gulp 构建不会自动安装依赖项？
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Gulp build does not install dependencies automatically?
提问by Gelin Luo
I use gulp to build my javascript application. I have some dependencies declared in the package.jsonfile, for example:
我使用 gulp 来构建我的 javascript 应用程序。我在package.json文件中声明了一些依赖项，例如：
"dependencies": {
"flux": "^2.0.1",
"keymirror": "~0.1.0",
"object-assign": "^1.0.0",
"react": "^0.13.1",
"dropzone": "^4.0.1",
"lodash": "^3.6.0"
}
When I run gulp build, it always prompt me some dependency cannot be found unless I manually run npm install lodashfor example.
当我运行 gulp build 时，它总是提示我找不到某些依赖项，除非我手动运行npm install lodash。
Is there a way to have gulp run npm installautomatically?
有没有办法让 gulpnpm install自动运行？
回答by Alex
Run npm install --save-devcommand to resolve all dependencies.
运行npm install --save-dev命令以解决所有依赖项。
Here is link to documentation with --save-devparameter description: https://docs.npmjs.com/cli/install
这是带有--save-dev参数描述的文档链接：https: //docs.npmjs.com/cli/install
回答by Vikas Kathunia
- You require to have package.json on the root level.
- Then once you have to run npm install for all the dependencies with --saveDev(development dependencies) or --save(project level dependencies).
- Once this is done, for the next time only run npm install command will install dependent dependencies.
- 您需要在根级别拥有 package.json。
- 然后，一旦您必须使用 --saveDev（开发依赖项）或 --save（项目级依赖项）为所有依赖项运行 npm install。
- 完成后，下次只运行 npm install 命令将安装依赖项。
回答by halogenr
gulp-installwould help for your issue. Go to NPM(node package manager) and search for "gulp-install".
gulp-install将帮助您解决问题。转到NPM（节点包管理器）并搜索“gulp-install”。
The node plugin gulp-installautomatically installs packages/dependencies for npm, bower, tsd, and pip. The relative configurations must be found in the gulp file stream.
node 插件会gulp-install自动为 npm、bower、tsd 和 pip 安装包/依赖项。必须在 gulp 文件流中找到相关配置。
示例用法：
In your gulpfile.js:
在你的 gulpfile.js 中：
var install = require("gulp-install");
gulp.src(["./package.json", "./bower.json"])
.pipe(install());
