我有一个 node.js/angular2 项目，之前一直使用 lite-server 提供服务，但由于我需要提供服务器端文件，所以我改用 http-server。要同时运行 lite 服务器和 typescript 编译器，我在包中使用了以下命令: "start": "tsc &&并发\"tsc -w\"\"lite-server\"", .json。我最初将其切换为 "start": "tsc &&并发\"tsc -w\"\"http-server\"", 我发现它给出了错误:
[1] 'http-server' is not recognized as an internal or external command,
1] operable program or batch file.
1] http-server exited with code 1
看过this SO post后，我尝试了:tsc &&并发“tsc -w”“./node_modules/http-server/bin”返回了相同的错误。
运行http-server的正确命令是什么？
更新:
我按照建议修改了我的package.json:
{
"name": "angular2-quickstart",
"version": "1.0.0",
"description": "QuickStart package.json from the documentation, supplemented with testing support",
"scripts": {
"start": "tsc && concurrently \"tsc -w\" \"node app/index.js\" ",
"docker-build": "docker build -t ng2-quickstart .",
"docker": "npm run docker-build && docker run -it --rm -p 3000:3000 -p 3001:3001 ng2-quickstart",
"pree2e": "npm run webdriver:update",
"e2e": "tsc && concurrently \"http-server -s\" \"protractor protractor.config.js\" --kill-others --success first",
"lint": "tslint ./app/**/*.ts -t verbose",
"lite": "lite-server",
"http": "http-server",
"postinstall": "typings install",
"server": "http-server",
"test": "tsc && concurrently \"tsc -w\" \"karma start karma.conf.js\"",
"test-once": "tsc && karma start karma.conf.js --single-run",
"tsc": "tsc",
"tsc:w": "tsc -w",
"typings": "typings",
"webdriver:update": "webdriver-manager update"
},
"keywords": [],
"author": "",
"license": "ISC",
"dependencies": {
"@angular/common": "2.0.0-rc.4",
"@angular/compiler": "2.0.0-rc.4",
"@angular/core": "2.0.0-rc.4",
"@angular/forms": "0.2.0",
"@angular/http": "2.0.0-rc.4",
"@angular/platform-browser": "2.0.0-rc.4",
"@angular/platform-browser-dynamic": "2.0.0-rc.4",
"@angular/router": "3.0.0-beta.2",
"@angular/router-deprecated": "2.0.0-rc.2",
"@angular/upgrade": "2.0.0-rc.4",
"angular2-in-memory-web-api": "0.0.14",
"bootstrap": "^3.3.6",
"cheerio": "latest",
"core-js": "^2.4.0",
"express": "latest",
"file-system": "^2.2.1",
"http-server": "^0.9.0",
"reflect-metadata": "^0.1.3",
"request": "latest",
"rxjs": "5.0.0-beta.6",
"systemjs": "0.19.27",
"zone.js": "^0.6.12"
},
"devDependencies": {
"concurrently": "^2.2.0",
"lite-server": "^2.2.0",
"typescript": "^1.8.10",
"typings": "^1.0.4",
"canonical-path": "0.0.2",
"http-server": "latest",
"tslint": "^3.7.4",
"lodash": "^4.11.1",
"jasmine-core": "~2.4.1",
"karma": "^0.13.22",
"karma-chrome-launcher": "^0.2.3",
"karma-cli": "^0.1.2",
"karma-htmlfile-reporter": "^0.2.2",
"karma-jasmine": "^0.3.8",
"protractor": "^3.3.0",
"rimraf": "^2.5.2"
},
"repository": {}
}
我在项目根目录中运行命令 npm install http-server --save 并收到以下错误:
+-- @reactivex/rxjs@5.0.0-beta.10 extraneous
+-- UNMET PEER DEPENDENCY reflect-metadata@0.1.3
`-- UNMET PEER DEPENDENCY rxjs@5.0.0-beta.6
npm WARN optional Skipping failed optional dependency /chokidar/fsevents:
npm WARN notsup Not compatible with your operating system or architecture: fsevents@1.0.14
npm WARN angular2@2.0.0-beta.15 requires a peer of reflect-metadata@0.1.2 but none was installed.
npm WARN angular2@2.0.0-beta.15 requires a peer of rxjs@5.0.0-beta.2 but none was installed.
这些软件包是最初安装的，那么什么可能导致这些错误？
最佳答案
正确的命令是http-server，但是你需要确保你已经正确安装了http-server。
如果您使用了npm install -g http-server，那么您只需在任何地方使用http-server即可。 CLI 或 package.json 脚本，并不重要，它就可以工作。
如果您使用了npm install http-server --save或save-dev等，那么您仍然只使用http-server，但作为 package.json 脚本的一部分。然后它只能通过 npm 脚本工作，因为 npm 会为您完成所有环境引导。不要尝试猜测 http-server bin 位置。
为了获得奖励积分，将所有不同的事情捕获为自己的 npm 任务，然后使用 npm 任务组合或类似 npm-run-all 的东西:
...
"scripts": {
"server": "http-server",
"tsc": "tsc",
"tsc:w": "tsc -w",
"start": "npm-run-all tsc tsc:w server"
},
...
"dependencies": {
...
"http-server": "...",
...
}
2017年编辑
或者，如果您不需要全局包，也可以使用 npx ，作为“唯一全局安装的东西”，然后您可以使用 npx modulename 运行本地模块，在本例中为 npx http-server。
关于javascript - 尝试运行 npm http-server 时出错，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/38837576/