未知选项:.../.babelrc.presets [英] Unknown option: .../.babelrc.presets

问题描述

我正在将Babel 6用于es2015并做出反应，这需要babel-preset-es2015和babel-preset-react.

I am using Babel 6 for es2015 and react which requires babel-preset-es2015 and babel-preset-react.

我在.babelrc中添加了presets属性，但它给我抛出了一个错误:

I add the presets property in .babelrc but it throw me an error:

ERROR in ./src/client/entry.js
Module build failed: ReferenceError: [BABEL] /Users/brick/Dropbox/learncoding/node.js/isomorphic/src/client/entry.js: Unknown option: /Users/brick/Dropbox/learncoding/node.js/isomorphic/.babelrc.presets
    at Logger.error (/Users/brick/Dropbox/learncoding/node.js/isomorphic/node_modules/babel-core/lib/transformation/file/logger.js:58:11)
    at OptionManager.mergeOptions (/Users/brick/Dropbox/learncoding/node.js/isomorphic/node_modules/babel-core/lib/transformation/file/options/option-manager.js:126:29)
    at OptionManager.addConfig (/Users/brick/Dropbox/learncoding/node.js/isomorphic/node_modules/babel-core/lib/transformation/file/options/option-manager.js:107:10)
    at OptionManager.findConfigs (/Users/brick/Dropbox/learncoding/node.js/isomorphic/node_modules/babel-core/lib/transformation/file/options/option-manager.js:168:35)
    at OptionManager.init (/Users/brick/Dropbox/learncoding/node.js/isomorphic/node_modules/babel-core/lib/transformation/file/options/option-manager.js:229:12)
    at File.initOptions (/Users/brick/Dropbox/learncoding/node.js/isomorphic/node_modules/babel-core/lib/transformation/file/index.js:147:75)
    at new File (/Users/brick/Dropbox/learncoding/node.js/isomorphic/node_modules/babel-core/lib/transformation/file/index.js:137:22)
    at Pipeline.transform (/Users/brick/Dropbox/learncoding/node.js/isomorphic/node_modules/babel-core/lib/transformation/pipeline.js:164:16)
    at transpile (/Users/brick/Dropbox/learncoding/node.js/isomorphic/node_modules/babel-loader/index.js:12:22)
    at Object.module.exports (/Users/brick/Dropbox/learncoding/node.js/isomorphic/node_modules/babel-loader/index.js:69:12)
 @ multi main

我的.babelrc文件是:

{
  "presets": [
    "es2015",
    "react"
  ]
}

我可以运行babel src -d lib命令，它可以正常工作.但是，如果我运行npm start通过package.json运行babel，则会出现错误.

I can run babel src -d lib command, it works. But if I run npm start to run the babel via package.json, the error appears.

我认为我可以忽略该错误，因为该应用程序正在运行.但是我想知道为什么会出现此错误，并且不确定会导致什么错误.

I think I can ignore the error because the app runs. But I want to know why this error and not sure what it affects.

我在package.json中的scripts是:

"scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "clean": "rm -rf lib",
    "build": "npm run clean && /usr/local/bin/babel src -d lib --experimental",
    "server": "nodemon lib/server/server",
    "dev-server": "node lib/server/webpack",
    "watch-js": "/usr/local/bin/babel src -d lib --experimental -w",
    "start": "npm run watch-js & npm run dev-server & npm run server"
  },

我的entry.js是

import React from "react";
import Router from "react-router";
import ReactDOM from "react-dom";
import routes from "./routes";
import DataWrapper from './DataWrapper';
import createBrowserHistory from 'history/lib/createBrowserHistory';

let history = createBrowserHistory();
var data = JSON.parse(document.querySelector('#data').innerHTML);
ReactDOM.render(<DataWrapper data={data}><Router history = {history}>{routes}</Router></DataWrapper>, document.querySelector('#app'));

推荐答案

我发现此问题是由babel-loader和babel-core的版本引起的.

I figured out this problem is caused by the version of babel-loader and babel-core.

在package.json中，依赖项表示为^5.3.3，因此它将不会更新为6.x.将其更改为>=5.3.3或^6.0.0.

In the package.json the dependencies was stated ^5.3.3 so it won't update to 6.x. Change it to >=5.3.3 or ^6.0.0.

^表示升级子版本，但不升级主版本.

^ means upgrade the sub version but don't upgrade main version.

这篇关于未知选项:.../.babelrc.presets的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！