test "decorator" throw "The 'decorators' plugin requires a 'decoratorsBeforeExport' option"

[467057463]

hello everyone, in the first thank of your work!
when i run yarn test
then throw below error

The 'decorators' plugin requires a 'decoratorsBeforeExport' option, whose value must be a boolean. If you are migrating from Babylon/Babel 6 or want to use the old decorators proposal, you should use the 'decorators-legacy' plugin instead of 'decorators'.

  at validatePlugins (node_modules/@babel/parser/lib/index.js:10472:13)
  at getParser (node_modules/@babel/parser/lib/index.js:10529:5)
  at parse (node_modules/@babel/parser/lib/index.js:10513:12)

there is my config-overrides.js

const rewireMobX = require('react-app-rewire-mobx');
const rewireSass = require('react-app-rewire-scss');

module.exports = function override(config, env) {
  config = rewireMobX(config, env);
  config = rewireSass(config, env);
  return config;
}

const { override, addDecoratorsLegacy, disableEsLint } = require("customize-cra");

module.exports = override(
  addDecoratorsLegacy(),
  disableEsLint()
);

and there is my package.json

{
  "name": "react-blog",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "mobx": "^5.5.2",
    "mobx-react": "^5.3.5",
    "react": "^16.6.0",
    "react-app-rewire-mobx": "^1.0.9",
    "react-dom": "^16.6.0",
    "react-router-dom": "^4.3.1",
    "react-scripts": "2.0.5"
  },
  "scripts": {
    "start": "react-app-rewired start",
    "build": "react-app-rewired build",
    "test": "react-app-rewired test --env=jsdom"
  },
  "eslintConfig": {
    "extends": "react-app"
  },
  "browserslist": [
    ">0.2%",
    "not dead",
    "not ie <= 11",
    "not op_mini all"
  ],
  "devDependencies": {
    "@babel/plugin-proposal-class-properties": "^7.1.0",
    "@babel/plugin-proposal-decorators": "^7.1.2",
    "customize-cra": "^0.1.1",
    "react-app-rewire-scss": "^1.0.2",
    "react-app-rewired": "^1.6.2"
  }
}

at last this error only throw in run yarn test(when run yarn start will be OK)

[arackaf]

Hm not sure. Your first code snippet has two assignments to module.exports = . That seems wrong, but I'm not sure if that's your problem.

Otherwise, really not sure what the problem is - sorry!

[arackaf]

Actually - this code

const rewireMobX = require('react-app-rewire-mobx');
const rewireSass = require('react-app-rewire-scss');

module.exports = function override(config, env) {
  config = rewireMobX(config, env);
  config = rewireSass(config, env);
  return config;
}

seems like it's for CRA 1 - I'd recommend just getting rid of it.

[467057463]

@arackaf thank you a lot,
i remove CRA 1 config

there is my new config-overrides.js

const { override, addDecoratorsLegacy, disableEsLint } = require("customize-cra");

module.exports = override(
  addDecoratorsLegacy(),
  disableEsLint()
)

The same error as above( yarn test throw error)

I am new to react, i am not suer about is the configuration problem, or other
Can you share your 'config-overrides.js' ?