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我安装了 nodejs 我安装了 npm 我用-g选项安装了 less

但是当我通过控制台运行nodejs并编写命令less时，有：

ReferenceError: less is not defined
    at repl:1:2
    at REPLServer.self.eval (repl.js:110:21)
    at Interface.<anonymous> (repl.js:239:12)
    at Interface.EventEmitter.emit (events.js:95:17)
    at Interface._onLine (readline.js:202:10)
    at Interface._line (readline.js:531:8)
    at Interface._ttyWrite (readline.js:760:14)
    at ReadStream.onkeypress (readline.js:99:10)
    at ReadStream.EventEmitter.emit (events.js:98:17)
    at emitKey (readline.js:1095:12)

我可以运行lessor lessc，但在 nodejs 之外

回答：

var less = require('less');
Error: Cannot find module 'less'
    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 repl:1:12
    at REPLServer.self.eval (repl.js:110:21)
    at repl.js:249:20
    at REPLServer.self.eval (repl.js:122:7)
    at Interface.<anonymous> (repl.js:239:12)
    at Interface.EventEmitter.emit (events.js:95:17)

我需要它用于 Assetic Symfony2

当我尝试通过 symfony2 控制台执行assetic:dump 时，我遇到了与在nodejs“环境”中运行它时相同的错误......

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1 回答 1

1

您需要要求该模块：

var less = require('less')

http://lesscss.org/#usage在节点中有一个示例（搜索代码中的使用小节）：

var less = require('less');

less.render('.class { width: (1 + 1) }', function (e, css) {
    console.log(css);
});
于 2013-07-23T15:57:15.873 回答