node.js 节点。并且 npm start 不起作用
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/24334005/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
node . and npm start don't work
提问by Bren
The title says most of the problem. When I try to run node .I get:
标题说明了大部分问题。当我尝试运行时，node .我得到：
module.js:340
throw err;
^
Error: Cannot find module 'static-favicon'
at Function.Module._resolveFilename (module.js:338:15)
at Function.Module._load (module.js:280:25)
at Function.Module.runMain (module.js:497:10)
at startup (node.js:119:16)
at node.js:902:3
There seems to be no modules folder actually. I'm just running expressin an empty directory
实际上似乎没有模块文件夹。我只是express在一个空目录中运行
npm works fine however. This is with a fresh express install if it matters. Any help would be awesome, thanks!
但是 npm 工作正常。如果重要的话，这是一个全新的快速安装。任何帮助都会很棒，谢谢！
the full error messages:
完整的错误信息：
new-host-2:~ Brennan$ cd Desktop/
new-host-2:Desktop Brennan$ mkdir test4
new-host-2:Desktop Brennan$ cd test4
new-host-2:test4 Brennan$ express -e
create : .
create : ./package.json
create : ./app.js
create : ./public
create : ./public/javascripts
create : ./public/images
create : ./public/stylesheets
create : ./public/stylesheets/style.css
create : ./routes
create : ./routes/index.js
create : ./routes/users.js
create : ./views
create : ./views/index.ejs
create : ./views/error.ejs
create : ./bin
create : ./bin/www
install dependencies:
$ cd . && npm install
run the app:
$ DEBUG=test4 ./bin/www
new-host-2:test4 Brennan$ node app.js
module.js:340
throw err;
^
Error: Cannot find module 'static-favicon'
at Function.Module._resolveFilename (module.js:338:15)
at Function.Module._load (module.js:280:25)
at Module.require (module.js:364:17)
at require (module.js:380:17)
at Object.<anonymous> (/Users/Brennan/Desktop/test4/app.js:3:15)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Function.Module.runMain (module.js:497:10)
new-host-2:test4 Brennan$ npm start app.js
npm ERR! Error: ENOENT, open '/Users/Brennan/Desktop/test4/node_modules/app.js/package.json'
npm ERR! If you need help, you may report this *entire* log,
npm ERR! including the npm and node versions, at:
npm ERR! <http://github.com/npm/npm/issues>
npm ERR! System Darwin 12.4.0
npm ERR! command "node" "/usr/local/bin/npm" "start" "app.js"
npm ERR! cwd /Users/Brennan/Desktop/test4
npm ERR! node -v v0.10.26
npm ERR! npm -v 1.4.7
npm ERR! path /Users/Brennan/Desktop/test4/node_modules/app.js/package.json
npm ERR! code ENOENT
npm ERR! errno 34
npm ERR!
npm ERR! Additional logging details can be found in:
npm ERR! /Users/Brennan/Desktop/test4/npm-debug.log
npm ERR! not ok code 0
new-host-2:test4 Brennan$ forever app.js
warn: --minUptime not set. Defaulting to: 1000ms
warn: --spinSleepTime not set. Your script will exit if it does not stay up for at least 1000ms
module.js:340
throw err;
^
Error: Cannot find module 'static-favicon'
at Function.Module._resolveFilename (module.js:338:15)
at Function.Module._load (module.js:280:25)
at Module.require (module.js:364:17)
at require (module.js:380:17)
at Object.<anonymous> (/Users/Brennan/Desktop/test4/app.js:3:15)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Function.Module.runMain (module.js:497:10)
error: Forever detected script exited with code: 8
回答by dylants
After using the express-generatorto generate the node application, you need to install the dependencies for the project. This is done via:
使用express-generator生成节点应用后，需要为项目安装依赖。这是通过以下方式完成的：
$ npm install
Once this is done, you can start the app using npm:
完成此操作后，您可以使用npm以下命令启动应用程序：
$ npm start
By default, the express generated apps state this as the startcommand for npm(you can view this in the package.jsonfile):
默认情况下，express 生成的应用程序将此声明为以下start命令npm（您可以在package.json文件中查看）：
"start": "node ./bin/www"
So to execute the same thing via the command line, you would run:
因此，要通过命令行执行相同的操作，您可以运行：
$ node ./bin/www
回答by Jan Michael Auer
I had the same issue after running the express-generator on a non-empty directory with some node modules already installed in node_modules, especially express itself. Simply nuke the folder, reinstall all your dependencies and you should be good to go:
在已经安装了一些节点模块的非空目录上运行 express-generator 后，我遇到了同样的问题node_modules，尤其是 express 本身。只需核对文件夹，重新安装所有依赖项，您就可以开始了：
rm -rf ./node_modules
npm install
npm start
EDIT:Tuns out that at some stage in the process I had installed serve-faviconand saved that to the local package.json. Looks like the express generator failed to add that dependency. Therefore:
编辑：在我安装serve-favicon并将其保存到本地 package.json的过程中的某个阶段调出。看起来快速生成器未能添加该依赖项。所以：
npm install serve-favicon --save
npm start
回答by Dan
given a dir tree like:
给定一个目录树，如：
myapp
- lib
- favicon.ico
- app.js
- package.json
- node_modules (npm installs all modules in here)
if you are trying to access favicon.ico in your app.js
如果您尝试在 app.js 中访问 favicon.ico
var express = require('express'),
fs = require('fs'); // this is for reading static files
var favicon = require(fs.readFileSync('./lib/favicon.ico'));
the var for favicon may not be what you expect. The best way for serving static files would be to set up a static directory with a route so anyone hitting that route with a param gets that files: for example:
favicon 的 var 可能不是您所期望的。提供静态文件的最佳方法是设置一个带有路由的静态目录，以便任何使用参数访问该路由的人都可以获取该文件：例如：
https://mynodeapp.com/static/images/{param}
where param would be the name of the file (this is an example using Hapi - express has something similiar for serving static files)
其中 param 将是文件的名称（这是一个使用 Hapi 的示例 - express 有一些类似的东西可以用于提供静态文件）
回答by user4447835
Use serve-favicon instead of static-favicon. Also verify that you have serve-favicon installed correctly. Do cd serve-favicon, check package.json, and then run npm install to have all dependencies installed correctly.
使用 serve-favicon 而不是 static-favicon。还要验证您是否正确安装了服务网站图标。执行 cd serve-favicon，检查 package.json，然后运行 npm install 以正确安装所有依赖项。
回答by santhosh
Do npmstartwhich installs all the required modules for your project
执行npmstart它为您的项目安装所有必需的模块
