[英]Babel cannot find module '@babel/preset-presets-env'
我通過NPM 安裝安裝了Babel以使我的 Javascript 代碼對所有瀏覽器都可見,但是當我運行此命令時出現錯誤: node_modules/.bin/babel before.js -o after.js
它告訴我它cannot find the module '@babel/preset-presets-env
錯誤輸出:
*Error: Cannot find module '@babel/preset-presets-env'* from 'C:\Users\Johnny\Documents\Firebase Firestore Tutorial\javascript 1\lesson 19'
at Function.resolveSync [as sync] (C:\Users\Johnny\Documents\Firebase Firestore Tutorial\javascript 1\lesson 19\node_modules\resolve\lib\sync.js:90:15)
at resolveStandardizedName (C:\Users\Johnny\Documents\Firebase Firestore Tutorial\javascript 1\lesson 19\node_modules\@babel\core\lib\config\files\plugins.js:101:31)
at resolvePreset (C:\Users\Johnny\Documents\Firebase Firestore Tutorial\javascript 1\lesson 19\node_modules\@babel\core\lib\config\files\plugins.js:58:10)
at loadPreset (C:\Users\Johnny\Documents\Firebase Firestore Tutorial\javascript 1\lesson 19\node_modules\@babel\core\lib\config\files\plugins.js:77:20)
at createDescriptor (C:\Users\Johnny\Documents\Firebase Firestore Tutorial\javascript 1\lesson 19\node_modules\@babel\core\lib\config\config-descriptors.js:154:9)
at C:\Users\Johnny\Documents\Firebase Firestore Tutorial\javascript 1\lesson 19\node_modules\@babel\core\lib\config\config-descriptors.js:109:50
at Array.map (<anonymous>)
at createDescriptors (C:\Users\Johnny\Documents\Firebase Firestore Tutorial\javascript 1\lesson 19\node_modules\@babel\core\lib\config\config-descriptors.js:109:29)
at createPresetDescriptors (C:\Users\Johnny\Documents\Firebase Firestore Tutorial\javascript 1\lesson 19\node_modules\@babel\core\lib\config\config-descriptors.js:101:10)
at presets (C:\Users\Johnny\Documents\Firebase Firestore Tutorial\javascript 1\lesson 19\node_modules\@babel\core\lib\config\config-descriptors.js:47:19) {
code: 'MODULE_NOT_FOUND'
}
我有同樣的問題,但得到了解決方案:
// comple Babel Code with given rules
module: {
rules: [
{
test: /\.(js|jsx)$/,
loader: 'babel-loader',
exclude: /(node_modules)/,
options: {
presets: [
'@babel/presets-env',
'@babel/presets-react'
]
}
}
]
}
// comple Babel Code with given rules
module: {
rules: [
{
test: /\.(js|jsx)$/,
loader: 'babel-loader',
exclude: /(node_modules)/
}
]
}
進行此更改代碼后開始工作...!
:-)
我刪除了我的項目並重新開始安裝 babel,現在它運行順利。 :D
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