所以当我在本地安装这些软件包时它们可以工作，但是当我全局安装(并在本地删除它们)时
npm i babel-cli -g
npm i -g babel-preset-es2015
npm i -g babel-preset-es2015-node
似乎该标志没有将 es2016-node 设置为在全局包列表中查找。无论如何，会发生以下错误:
npm run start myfile.js
babel-node --presets es2015-node -- bin/myScript.js "myfile.js"
/usr/local/Cellar/node/6.1.0/lib/node_modules/babel-cli/node_modules/babel-core/lib/transformation/file/options/option-manager.js:395
throw new Error("Couldn't find preset " + (0, _stringify2.default)(val) + " relative to directory " + (0, _stringify2.default)(dirname));
^
Error: Couldn't find preset "es2015-node" relative to directory "/Users/user/project/bin"
at /usr/local/Cellar/node/6.1.0/lib/node_modules/babel-cli/node_modules/babel-core/lib/transformation/file/options/option-manager.js:395:17
at Array.map (native)
at OptionManager.resolvePresets (/usr/local/Cellar/node/6.1.0/lib/node_modules/babel-cli/node_modules/babel-core/lib/transformation/file/options/option-manager.js:387:20)
at OptionManager.mergePresets (/usr/local/Cellar/node/6.1.0/lib/node_modules/babel-cli/node_modules/babel-core/lib/transformation/file/options/option-manager.js:370:10)
npm ERR! Darwin 14.5.0
npm ERR! argv "/usr/local/Cellar/node/6.1.0/bin/node" "/usr/local/bin/npm" "run" "start" "myfile.js"
npm ERR! node v6.1.0
npm ERR! npm v3.7.3
npm ERR! code ELIFECYCLE
npm ERR! <a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="166664797c737562562638263826" rel="noreferrer noopener nofollow">[email protected]</a> start: `babel-node --presets es2015-node -- bin/myScript.js "myfile.js"`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the <a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="daaaa8b5b0bfb9ae9aeaf4eaf4ea" rel="noreferrer noopener nofollow">[email protected]</a> start script 'babel-node --presets es2015-node -- bin/myScript.js "myfile.js"'.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the project package,
最佳答案
错误消息中有提示:
Couldn't find preset "es2015-node" relative to directory "/Users/user/project/bin"
在本地安装预设，并使用 --save 标志将它们保存为 package.json 中的依赖项:
npm install --save babel-preset-es2015-node babel-preset-es2015
Babel 的明智之举是仅在本地查找预设。这样，您就被迫通过在 package.json 中描述其操作所需的必要依赖项来生成可移植的模块，然后由用户通过 npm install 安装.
关于npm - es2015模式下无法运行全局babel-node，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/38058079/