A K Bharath
A K Bharath

Reputation: 157

babel-node throw error for react.jsx file

I get a babel-node error. Please help me in fixing this issue.

Please see the error below

enter code here
 root@ip-10-252-14-11:/home/ubuntu/workarea/sourcecode/ntdl# babel-node 
 node/react-render.jsx

/usr/local/lib/node_modules/@babel/core/node_modules/@babel/template/lib/builder.js:86 throw err; ^

Error: Unknown substitution "BODY" given at /usr/local/lib/node_modules/@babel/core/node_modules/@babel/template/lib/populate.js:22:15 at Array.forEach () at populatePlaceholders (/usr/local/lib/node_modules/@babel/core/node_modules/@babel/template/lib/populate.js:20:31) at /usr/local/lib/node_modules/@babel/core/node_modules/@babel/template/lib/string.js:20:51 at /usr/local/lib/node_modules/@babel/core/node_modules/@babel/template/lib/builder.js:83:14 at spec (/home/ubuntu/workarea/sourcecode/ntdl/node_modules/babel-plugin-transform-es2015-for-of/lib/index.js:159:20) at PluginPass.ForOfStatement (/home/ubuntu/workarea/sourcecode/ntdl/node_modules/babel-plugin-transform-es2015-for-of/lib/index.js:72:21) at newFn (/usr/local/lib/node_modules/@babel/core/node_modules/@babel/traverse/lib/visitors.js:223:21) at NodePath._call (/usr/local/lib/node_modules/@babel/core/node_modules/@babel/traverse/lib/path/context.js:64:19) at NodePath.call (/usr/local/lib/node_modules/@babel/core/node_modules/@babel/traverse/lib/path/context.js:38:17) ============= at exports.default (/home/ubuntu/workarea/sourcecode/ntdl/node_modules/babel-plugin-transform-es2015-for-of/lib/index.js:11:20) at /usr/local/lib/node_modules/@babel/core/lib/config/index.js:167:14 at cachedFunction (/usr/local/lib/node_modules/@babel/core/lib/config/caching.js:40:17) at loadPluginDescriptor (/usr/local/lib/node_modules/@babel/core/lib/config/index.js:202:28) at /usr/local/lib/node_modules/@babel/core/lib/config/index.js:59:16 at Array.map () at recurseDescriptors (/usr/local/lib/node_modules/@babel/core/lib/config/index.js:58:36) at recurseDescriptors (/usr/local/lib/node_modules/@babel/core/lib/config/index.js:92:27)

my babel-node version is

root@ip-10-252-14-11:/home/ubuntu/workarea/sourcecode/ntdl# babel-node --version 7.0.0-beta.40

my package.json file contents is

{
  "name": "ntdl",
  "version": "1.0.2",
  "description": "Build and rendering server for NTDL django project",
  "license": "SEE LICENSE IN license.txt",
  "devDependencies": {
  "babel-eslint": "^6.1.2",
  "cssmin": "^0.4.3",
  "eslint": "^3.11.1",
  "eslint-plugin-react": "^6.8.0",
  "uglify": "^0.1.5"
  },
 "scripts": {
  "start": "concurrently --no-color \"npm run pack\" \"npm run django\"  
  \"npm run render\"",
  "partial-start": "concurrently --no-color \"npm run pack\" \"npm run 
  render\"",
  "start-prod": "concurrently --no-color \"uwsgi --ini 
  /home/ntdl/code/uwsgi.ini\" \"nginx\" \"npm run render-prod\"",
  "pack": "webpack --watch --config node/webpack/webpack.config.js",
  "pack-prod": "webpack --config node/webpack/webpack.production.config.js",
  "django": "python manage.py runserver",
  "render": "babel-node node/react-render.jsx --watch",
  "render-prod": "babel-node node/react-render.jsx",
  "pylint": "pylint ntdl cms search",
  "eslint": "eslint static/style/style.js && eslint --ext .jsx search",
  "lint": "npm run pylint && npm run eslint",
  "es-index": "babel-node elasticsearch/index/create.js",
  "migratedb": "python manage.py migrate"
 },
 "dependencies": {
  "autobind-decorator": "^2.1.0",
  "babel-cli": "^7.0.0-alpha.20",
  "babel-core": "^7.0.0-alpha.20",
  "babel-loader": "^7.1.2",
  "babel-plugin-transform-decorators-legacy": "1.3.4",
  "babel-plugin-transform-object-rest-spread": "^7.0.0-alpha.20",
  "babel-plugin-transform-optional-chaining": "^7.0.0-alpha.20",
  "babel-polyfill": "^6.23.0",
  "babel-preset-env": "^2.0.0-alpha.20",
  "babel-preset-react": "^7.0.0-alpha.20",
  "babel-register": "^7.0.0-alpha.20",
  "body-parser": "^1.17.2",
  "concurrently": "^3.5.0",
  "elasticsearch": "^12.1.3",
  "express": "^4.15.4",
  "history": "^4.7.2",
  "material-ui": "^0.16.7",
  "node-sass": "^3.13.0",
  "openseadragon": "^2.3.0",
  "pdfjs-dist": "^1.8.492",
  "query-string": "^5.0.0",
  "react": "^15.6.1",
  "react-dom": "^15.6.1",
  "react-redux": "^5.0.6",
  "react-render": "^1.2.1",
  "react-router": "^4.2.0",
  "react-router-dom": "^4.2.2",
  "react-router-redux": "^5.0.0-alpha.6",
  "react-tap-event-plugin": "^2.0.1",
  "redux": "^3.7.2",
  "redux-thunk": "^2.2.0",
  "request": "2.79.0",
  "webpack": "^3.5.5",
  "webpack-bundle-tracker": "0.1.0",
  "yargs": "^6.6.0"
 } 
 }

my .babelrc file contents are

{
  "presets": [
  "react",
  ["env", {
  "targets": {
    "browsers": ["last 2 versions", "ie >= 11"],
    "node": "current"
  }
  }]
],

"plugins": [
  "transform-decorators-legacy",
  "transform-optional-chaining",/
  "transform-object-rest-spread"
 ]
}

Please tell me how to resolve this error. and guide me the best practices for using babel

What is the difference between babel-core vs @babel/core? Please through some light over it.

With Many Thanks,

Bharath AK

Upvotes: 0

Views: 1255

Answers (1)

Paul McLoughlin
Paul McLoughlin

Reputation: 2289

First try and delete package-lock.json, then run npm update

Try an install babel-core using npm install --save-dev babel-core

Upvotes: 0

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