I'm running into an issue where my build works fine on master branch, but on a sub-branch it is producing an error of "Uncaught ReferenceError: react is not defined". The package.json for both branches are a little different, but I'm still unsure why the sub-branch is showing that error as React is listed as a dependency for both.
master-branch:
{
"name": "master-branch",
"version": "0.0.1",
"description": "master-branch",
"main": "lib/index.js",
"pre-commit": [
"test"
],
"peerDependencies": {
"antd": "3.x",
"react": "16.x",
"react-dom": "16.x"
},
"scripts": {
"build": "rm -rf lib && NODE_ENV=production webpack --progress --config webpack.config.js ",
"docs:clean": "rm -rf docs/dist",
"docs:deploy": "yarn docs && gh-pages -d docs/dist",
"docs": "esdoc && yarn test:coverage && node docs/post-doc",
"test": "NODE_ENV=test jest",
"test:coverage": "jest --coverage",
"test:watch": "jest --watch",
"watch": "watch-run -p 'src/**' yarn build",
"storybook": "start-storybook -p 6006",
"storybook:watch": "concurrently \"yarn watch\" \"yarn storybook\"",
"storybook:build": "build-storybook -c .storybook -o build-stories"
},
"babel": {
"presets": [
"es2015",
"stage-0",
"react"
],
"plugins": [
"transform-class-properties",
"transform-custom-element-classes",
"transform-es2015-classes",
"transform-export-extensions"
]
},
"jest": {
"coverageDirectory": "docs/dist/coverage"
},
"dependencies": {
"antd": "3.6.5",
"async": "^2.6.0",
"axios": "^0.19.0",
"chance": "^1.0.13",
"classnames": "^2.2.5",
"jquery": "^3.2.1",
"lodash": "^4.17.15",
"md5": "^2.2.1",
"react-jss": "^8.4.0",
"store": "^2.0.12"
},
"devDependencies": {
"#storybook/addon-actions": "^5.2.5",
"#storybook/addon-links": "^5.2.5",
"#storybook/react": "^5.2.5",
"babel-cli": "^6.26.0",
"babel-core": "^6.26.3",
"babel-loader": "^7.1.4",
"babel-plugin-transform-class-properties": "^6.24.1",
"babel-plugin-transform-custom-element-classes": "^0.1.0",
"babel-plugin-transform-es2015-classes": "^6.24.1",
"babel-plugin-transform-export-extensions": "^6.22.0",
"babel-preset-es2015": "^6.24.1",
"babel-preset-react": "^6.24.1",
"babel-preset-stage-0": "^6.24.1",
"esdoc": "^1.0.3",
"esdoc-ecmascript-proposal-plugin": "^1.0.0",
"esdoc-react-plugin": "^1.0.1",
"esdoc-standard-plugin": "^1.0.0",
"gh-pages": "^1.0.0",
"jest": "^23.6.0",
"pre-commit": "^1.2.2",
"react": "^16.3.2",
"react-dom": "^16.3.2",
"react-test-renderer": "^16.0.0",
"url-loader": "^1.1.1",
"watch-run": "^1.2.5",
"webpack": "^3.8.1",
"webpack-cli": "^2.0.4"
},
"author": "",
"homepage": "",
"license": "MIT",
"repository": "",
"keywords": [
"react-component"
]
}
sub-branch:
{
"name": "sub-branch",
"version": "0.0.1",
"description": "sub-branch",
"main": "lib/index.js",
"pre-commit": [
"test"
],
"peerDependencies": {
"antd": "3.6.5",
"classnames": "^2.2.6",
"prop-types": "^15.7.2",
"react": "16.8",
"react-dom": "^16.9.0",
"react-jss": "^8.6.1"
},
"scripts": {
"build": "rm -rf lib && NODE_ENV=production webpack --mode production --progress --config webpack.config.js ",
"docs:clean": "rm -rf docs/dist",
"docs:deploy": "yarn docs && gh-pages -d docs/dist",
"docs": "esdoc && yarn test:coverage && node docs/post-doc",
"test": "NODE_ENV=test jest",
"test:coverage": "jest --coverage",
"test:watch": "jest --watch",
"watch": "watch-run -p 'src/**' yarn build",
"storybook": "start-storybook -p 6006",
"storybook:watch": "concurrently \"yarn watch\" \"yarn storybook\""
},
"jest": {
"coverageDirectory": "docs/dist/coverage"
},
"dependencies": {
"#storybook/addon-storysource": "^5.2.0",
"antd": "^3.23.3",
"axios": "^0.16.2",
"chance": "^1.0.13",
"classnames": "^2.2.6",
"lodash": "^4.17.4",
"md5": "^2.2.1",
"prop-types": "^15.7.2",
"react": "16.8",
"react-dom": "16.8",
"react-jss": "^8.6.1",
"store": "^2.0.12"
},
"devDependencies": {
"#babel/cli": "^7.6.0",
"#babel/core": "^7.6.0",
"#babel/plugin-proposal-class-properties": "^7.5.5",
"#babel/plugin-proposal-export-default-from": "^7.5.2",
"#babel/plugin-syntax-export-extensions": "^7.0.0-beta.32",
"#babel/plugin-transform-classes": "^7.5.5",
"#babel/preset-env": "^7.6.0",
"#babel/preset-react": "^7.0.0",
"#storybook/addon-actions": "^5.2.0",
"#storybook/addon-notes": "^5.2.1",
"#storybook/react": "^5.2.0",
"babel-loader": "^8.0.6",
"esdoc": "^1.0.3",
"esdoc-ecmascript-proposal-plugin": "^1.0.0",
"esdoc-react-plugin": "^1.0.1",
"esdoc-standard-plugin": "^1.0.0",
"flexbox-react": "^4.4.0",
"gh-pages": "^1.0.0",
"jest": "^24.9.0",
"pre-commit": "^1.2.2",
"react-popper-tooltip": "^2.8.3",
"react-test-renderer": "^16.9.0",
"react-textarea-autosize": "^7.1.0",
"simplebar-react": "^1.3.0-alpha.1",
"storybook-addon-react-docgen": "^1.2.18",
"url-loader": "^1.1.1",
"watch-run": "^1.2.5",
"webpack": "^4.40.2",
"webpack-cli": "^3.3.8"
},
"author": "",
"homepage": "",
"license": "MIT",
"repository": "",
"keywords": [
"react-component"
]
}
on master-branch react is defined as "devDependency", but on sub-branch as "dependency". I belive on sub-branch it also should be defined as "devDependency"
Related
I already add this to my package.json dist/custom-elements/index.mjs": "dist/custom-elements/index.js why i am having this error (below). did i miss something?
{
"name": "#map/react-app",
"private": true,
"scripts": {
"start": "webpack serve",
"start:standalone": "webpack serve --port 9003 --env standalone",
"build": "concurrently yarn:build:*",
"build:webpack": "webpack --mode=production",
"analyze": "webpack --mode=production --env analyze",
"lint": "eslint src --ext js",
"format": "prettier --write .",
"check-format": "prettier --check .",
"test": "cross-env BABEL_ENV=test jest",
"watch-tests": "cross-env BABEL_ENV=test jest --watch",
"prepare": "husky install",
"coverage": "cross-env BABEL_ENV=test jest --coverage"
},
"devDependencies": {
"#babel/core": "^7.15.0",
"#babel/eslint-parser": "^7.15.0",
"#babel/plugin-transform-runtime": "^7.15.0",
"#babel/preset-env": "^7.15.0",
"#babel/preset-react": "^7.14.5",
"#babel/runtime": "^7.15.3",
"#testing-library/jest-dom": "^5.14.1",
"#testing-library/react": "^12.0.0",
"babel-jest": "^27.0.6",
"concurrently": "^6.2.1",
"cross-env": "^7.0.3",
"eslint": "^7.32.0",
"eslint-config-prettier": "^8.3.0",
"eslint-config-react-important-stuff": "^3.0.0",
"eslint-plugin-prettier": "^3.4.1",
"husky": "^7.0.4",
"identity-obj-proxy": "^3.0.0",
"jest": "^27.0.6",
"jest-cli": "^27.0.6",
"prettier": "^2.3.2",
"pretty-quick": "^3.1.1",
"webpack": "^5.51.1",
"webpack-cli": "^4.8.0",
"webpack-config-single-spa-react": "^4.0.0",
"webpack-dev-server": "^4.0.0",
"webpack-merge": "^5.8.0"
},
"dependencies": {
"#arcgis/core": "^4.21.2",
"#material-ui/styles": "^4.11.4",
"#mui/styles": "^5.2.2",
"#reach/router": "^1.3.4",
"#stencil/core": "^2.11.0",
"browserify": "^17.0.0",
"dotenv": "^10.0.0",
"dotenv-webpack": "^7.0.3",
"path-browserify": "^1.0.1",
"react": "^17.0.2",
"react-dom": "^17.0.2",
"single-spa-react": "^4.3.1",
"web-vitals": "^2.1.2"
},
"lint-staged": {
"*.{js,jsx}": "pretty-quick --staged && eslint --fix"
},
"browser": {
"dist/custom-elements/index.mjs": "dist/custom-elements/index.js" // I'll already add this to may package.json, why i am having this error?
}
}
error
ERROR in
./node_modules/#esri/calcite-components/dist/custom-elements/index.mjs
1:0-147
Module not found: Error: Can't resolve '#stencil/core/internal/client'
in
'C:\Users\Ronald\Desktop\Map\app-react\node_modules#esri\calcite-components\dist\custom-elements'
Did you mean 'index.js'? BREAKING CHANGE: The request
'#stencil/core/internal/client' failed to resolve only because it was
resolved as fully specified (probably because the origin is strict
EcmaScript Module, e. g. a module with javascript mimetype, a '.mjs'
file, or a '.js' file where the package.json contains '"type":
"module"'). The extension in the request is mandatory for it to be
fully specified. Add the extension to the request.
The best solutions on this is in your webpack.config.js add this code
module:{
rules:[
{
test: /\.m?js/,
resolve: {
fullySpecified: false
}
}
]
},
and removed the browser in your package.json
I would like to use a development server just like React does with npm start. But, with Preact when I use the same command it opens a static server and I have to restart it manually each time when I want to see some change in my project.
My package.json:
{
"name": "yagoazedias-site",
"version": "0.0.0",
"description": "Ready-to-go Preact starter project powered by webpack.",
"scripts": {
"dev": "cross-env NODE_ENV=development webpack-dev-server --inline --hot --progress",
"start": "serve build -s -c 1",
"prestart": "npm run build",
"build": "cross-env NODE_ENV=production webpack --progress",
"prebuild": "mkdirp build && ncp src/assets build/assets",
"test": "npm run -s lint && jest --coverage",
"test:watch": "npm run -s test -- --watch",
"lint": "eslint src test"
},
"keywords": [
"preact",
"boilerplate",
"webpack"
],
"license": "MIT",
"author": "Jason Miller <jason#developit.ca>",
"jest": {
"setupFiles": [
"./test/setup.js"
],
"testURL": "http://localhost:8080",
"moduleFileExtensions": [
"js",
"jsx"
],
"moduleDirectories": [
"node_modules"
],
"moduleNameMapper": {
"\\.(jpg|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2|mp4|webm|wav|mp3|m4a|aac|oga)$": "<rootDir>/__mocks__/fileMock.js",
"\\.(css|less)$": "identity-obj-proxy",
"^react$": "preact-compat",
"^react-dom$": "preact-compat"
},
"collectCoverageFrom": [
"src/**/*.{js,jsx}"
]
},
"devDependencies": {
"autoprefixer": "^7.0.1",
"babel": "^6.5.2",
"babel-core": "^6.24.0",
"babel-eslint": "^7.2.2",
"babel-jest": "^20.0.0",
"babel-loader": "^7.0.0",
"babel-plugin-transform-decorators-legacy": "^1.3.4",
"babel-plugin-transform-react-jsx": "^6.8.0",
"babel-preset-es2015": "^6.24.0",
"babel-preset-stage-0": "^6.5.0",
"babel-register": "^6.24.0",
"babel-runtime": "^6.11.6",
"chai": "^4.0.2",
"copy-webpack-plugin": "^4.0.1",
"core-js": "^2.4.1",
"cross-env": "^5.0.1",
"css-loader": "^0.28.0",
"eslint": "^4.1.0",
"eslint-plugin-jest": "^20.0.0",
"eslint-plugin-react": "^7.0.0",
"extract-text-webpack-plugin": "^3.0.0",
"file-loader": "^0.11.1",
"html-webpack-plugin": "^2.28.0",
"identity-obj-proxy": "^3.0.0",
"jest": "^20.0.0",
"json-loader": "^0.5.4",
"less": "^2.7.1",
"less-loader": "^4.0.3",
"mkdirp": "^0.5.1",
"ncp": "^2.0.0",
"offline-plugin": "^4.7.0",
"postcss-loader": "^2.0.3",
"preact-jsx-chai": "^2.2.1",
"raw-loader": "^0.5.1",
"regenerator-runtime": "^0.10.3",
"replace-bundle-webpack-plugin": "^1.0.0",
"script-ext-html-webpack-plugin": "^1.3.4",
"sinon": "^2.1.0",
"sinon-chai": "^2.9.0",
"source-map-loader": "^0.2.1",
"style-loader": "^0.18.1",
"url-loader": "^0.6.1",
"webpack": "^3.0.0",
"webpack-dev-server": "^2.4.4"
},
"dependencies": {
"preact": "^8.1.0",
"preact-compat": "^3.15.0",
"preact-render-to-string": "^3.6.0",
"preact-router": "^2.5.1",
"promise-polyfill": "^6.0.2",
"proptypes": "^1.0.0",
"serve": "^6.0.0"
},
"main": "webpack.config.babel.js",
"directories": {
"test": "test"
}
}
Relevant links:
https://preactjs.com/
https://github.com/developit/preact
Use the dev script instead?
$ npm run dev
Your start script is doing serve build -s -c 1. React CRA's start script will boot up a webpack dev server which is what your dev script is doing.
npm start is short for npm run start. npm run <command> is just a small proxy that looks up the different commands you have listed in package.json.
Read more about npm scripts here.
I have the following library https://github.com/codyc4321/react-data-components-updated
I installed it in my React project like npm i ~/react-data-components-updated
Now running my node server I get:
ERROR in /Users/cchilders/react-data-components-updated/lib/index.js
Module build failed: Error: Couldn't find preset "react-hmre" relative to directory "/Users/cchilders/react-data-components-updated"
at /Users/cchilders/work_projects/myproject/node_modules/babel-core/lib/transformation/file/options/option-manager.js:293:19
at Array.map (native)
at OptionManager.resolvePresets (/Users/cchilders/work_projects/myproject/node_modules/babel-core/lib/transformation/file/options/option-manager.js:275:20)
at OptionManager.mergePresets (/Users/cchilders/work_projects/myproject/node_modules/babel-core/lib/transformation/file/options/option-manager.js:264:10)
at OptionManager.mergeOptions (/Users/cchilders/work_projects/myproject/node_modules/babel-core/lib/transformation/file/options/option-manager.js:249:14)
at OptionManager.init (/Users/cchilders/work_projects/myproject/node_modules/babel-core/lib/transformation/file/options/option-manager.js:368:12)
at File.initOptions (/Users/cchilders/work_projects/myproject/node_modules/babel-core/lib/transformation/file/index.js:212:65)
at new File (/Users/cchilders/work_projects/myproject/node_modules/babel-core/lib/transformation/file/index.js:135:24)
at Pipeline.transform (/Users/cchilders/work_projects/myproject/node_modules/babel-core/lib/transformation/pipeline.js:46:16)
at transpile (/Users/cchilders/work_projects/myproject/node_modules/babel-loader/lib/index.js:46:20)
# ./client/components/tables/MyDataTable.js 64:16-56
# ./client/controllers/MyController.js
# ./client/main.js
# multi webpack-hot-middleware/client ./client/main.js
In my library I have
.babelrc
{
"presets": [
"es2015",
"react",
"stage-1",
"react-hmre"
]
}
package.json
{
"name": "react-data-components-updated",
"version": "0.1.0",
"description": "React data components updated with some fixes",
"keywords": [
"pagination",
"react",
"react-component",
"table"
],
"license": "MIT",
"main": "./lib/index",
"files": [
"css",
"lib",
"dist",
"src"
],
"repository": {
"type": "git",
"url": "https://github.com/codyc4321/react-data-components-updated"
},
"dependencies": {
"babel-plugin-transform-decorators-legacy": "^1.3.4",
"lodash": "^4.13.1",
"prop-types": "^15.5.10"
},
"peerDependencies": {
"react": "^0.14.0 || ^15.0.0-0"
},
"devDependencies": {
"babel-cli": "^6.10.1",
"babel-core": "^6.10.4",
"babel-eslint": "^7.0.0",
"babel-jest": "^20.0.3",
"babel-loader": "^7.1.1",
"babel-plugin-lodash": "^3.2.4",
"babel-preset-es2015": "^6.24.1",
"babel-preset-react": "^6.5.0",
"babel-preset-stage-1": "^6.5.0",
"eslint": "^4.1.1",
"eslint-plugin-react": "^7.1.0",
"flow-bin": "^0.49.1",
"husky": "^0.14.1",
"jest": "^20.0.4",
"lint-staged": "^4.0.0",
"lodash-webpack-plugin": "^0.11.4",
"prettier": "^1.5.2",
"react": "^15.1.0",
"react-addons-test-utils": "^15.1.0",
"react-dom": "^15.1.0",
"react-redux": "^4.4.5",
"react-test-renderer": "^15.6.1",
"redux": "^3.5.2",
"rimraf": "^2.4.3",
"webpack": "^3.1.0",
"webpack-dev-server": "^2.5.0"
},
"scripts": {
"build": "webpack && babel src -d lib",
"check": "flow check",
"clean": "rimraf lib dist coverage",
"lint": "eslint src",
"precommit": "lint-staged",
"prepublish": "npm run clean && npm run build",
"start": "webpack-dev-server -d --config example/webpack.config.js",
"test": "npm run lint && npm run check && jest"
},
"lint-staged": {
"*.js": [
"prettier --write --single-quote --trailing-comma all",
"git add"
]
},
"jest": {
"roots": [
"src"
]
}
}
How can I fix this react-hmre error?
You have missed the package, please install it by click it babel-preset-react-hmre
I have a React project based on React Redux Starter Kit.
In Jest tests: when I trying to import something with root-based path like "components/Link" - it does not work. Only relative paths are working.
Putting
{ "jest": { "rootDir": "<rootDir>/src" } }
in file package.json does not work.
Is there another way?
File package.json:
{
"name": "react-redux-starter-kit",
"version": "3.0.0-alpha.2",
"description": "",
"main": "index.js",
"engines": {
"node": ">=4.5.0",
"npm": "^3.0.0"
},
"scripts": {
"clean": "rimraf dist",
"compile": "better-npm-run compile",
"lint": "eslint bin build config server src tests",
"lint:fix": "npm run lint -- --fix",
"start": "better-npm-run start",
"dev": "better-npm-run dev",
"test": "jest",
"test:dev": "npm run test -- --watch",
"deploy": "better-npm-run deploy",
"deploy:dev": "better-npm-run deploy:dev",
"deploy:prod": "better-npm-run deploy:prod",
"codecov": "cat coverage/*/lcov.info | codecov"
},
"betterScripts": {
"compile": {
"command": "node bin/compile",
"env": {
"DEBUG": "app:*"
}
},
"dev": {
"command": "nodemon bin/server --ignore dist --ignore coverage --ignore tests --ignore src",
"env": {
"NODE_ENV": "development",
"DEBUG": "app:*"
}
},
"deploy": {
"command": "npm run lint && npm run clean && npm run compile",
"env": {
"DEBUG": "app:*"
}
},
"deploy:dev": {
"command": "npm run deploy",
"env": {
"NODE_ENV": "development",
"DEBUG": "app:*"
}
},
"deploy:prod": {
"command": "npm run deploy",
"env": {
"NODE_ENV": "production",
"DEBUG": "app:*"
}
},
"start": {
"command": "node bin/server",
"env": {
"DEBUG": "app:*"
}
},
"test": {
"command": "node ./node_modules/karma/bin/karma start build/karma.conf",
"env": {
"NODE_ENV": "test",
"DEBUG": "app:*"
}
}
},
"repository": {
"type": "git",
"url": "git+https://github.com/davezuko/react-redux-starter-kit.git"
},
"author": "MyCityOnline",
"license": "MIT",
"dependencies": {
"babel-core": "^6.18.2",
"babel-loader": "^6.2.5",
"babel-plugin-transform-runtime": "^6.15.0",
"babel-preset-es2015": "^6.14.0",
"babel-preset-react": "^6.11.1",
"babel-preset-stage-0": "^6.3.13",
"babel-runtime": "^6.11.6",
"better-npm-run": "0.0.11",
"cropperjs": "^1.0.0-beta.2",
"css-loader": "^0.25.0",
"cssnano": "^3.7.4",
"debug": "^2.2.0",
"dotenv": "^2.0.0",
"es6-promise": "^4.1.0",
"essence-core": "^1.0.20",
"essence-switch": "^1.0.10",
"exports-loader": "^0.6.3",
"extract-text-webpack-plugin": "^1.0.0",
"file-loader": "^0.9.0",
"font-awesome": "^4.7.0",
"fs-extra": "^0.30.0",
"html-webpack-plugin": "^2.22.0",
"imports-loader": "^0.6.5",
"ip": "^1.1.2",
"isomorphic-fetch": "^2.2.1",
"json-loader": "^0.5.4",
"jwt-decode": "^2.1.0",
"lodash": "^4.16.3",
"moment": "^2.17.1",
"node-sass": "^3.7.0",
"normalize.css": "^4.1.1",
"pikaday": "^1.5.1",
"postcss-loader": "^0.13.0",
"react": "^15.0.0",
"react-dom": "^15.0.0",
"react-redux": "^4.4.5",
"react-router": "^2.8.0",
"redux": "^3.6.0",
"redux-api-middleware": "^1.0.2",
"redux-thunk": "^2.0.0",
"rimraf": "^2.5.4",
"sass-loader": "^4.0.0",
"style-loader": "^0.13.1",
"url-loader": "^0.5.6",
"webpack": "^1.12.14",
"whatwg-fetch": "^2.0.1",
"yargs": "^5.0.0"
},
"devDependencies": {
"babel-eslint": "^6.0.0-beta.6",
"babel-jest": "^19.0.0",
"babel-plugin-istanbul": "^2.0.1",
"breakpoint-sass": "^2.7.0",
"chai": "^3.4.1",
"chai-as-promised": "^5.3.0",
"chai-enzyme": "^0.5.0",
"cheerio": "^0.20.0",
"codecov": "^1.0.1",
"connect-history-api-fallback": "^1.3.0",
"enzyme": "^2.0.0",
"eslint": "^3.0.1",
"eslint-config-standard": "^6.2.1",
"eslint-config-standard-react": "^4.0.0",
"eslint-plugin-babel": "^3.2.0",
"eslint-plugin-promise": "^3.3.0",
"eslint-plugin-react": "^6.0.0",
"eslint-plugin-standard": "^2.0.0",
"express": "^4.14.0",
"http-proxy-middleware": "^0.17.2",
"jest": "^19.0.2",
"karma": "^1.0.0",
"karma-coverage": "^1.0.0",
"karma-mocha": "^1.0.1",
"karma-mocha-reporter": "^2.0.0",
"karma-phantomjs-launcher": "^1.0.2",
"karma-webpack-with-fast-source-maps": "^1.9.2",
"less": "^2.7.1",
"less-loader": "^2.2.3",
"mocha": "^3.0.1",
"nodemon": "^1.10.2",
"phantomjs-prebuilt": "^2.1.12",
"react-addons-test-utils": "^15.0.0",
"redbox-react": "^1.2.10",
"redux-logger": "^2.6.1",
"regenerator-runtime": "^0.10.3",
"sinon": "^1.17.5",
"sinon-chai": "^2.8.0",
"susy": "^2.2.12",
"webpack-dev-middleware": "^1.6.1",
"webpack-hot-middleware": "^2.12.2"
},
"jest": {
"rootDir": "<rootDir>/src"
}
}
Final working Jest part of file package.json:
"jest": {
"rootDir": "./src/",
"moduleFileExtensions": ["js", "jsx"],
"moduleDirectories": ["node_modules", "bower_components", "src"],
"verbose": true
}
I think that if you don't want to use relative paths, you have to define additional moduleDirectories, like
// package.json
{
"jest": {
"moduleFileExtensions": ["js", "jsx"],
"moduleDirectories": ["node_modules", "bower_components", "src"],
}
}
More about moduleDirectories in jest docs and configuring jest to find files.
Modifying moduleFileExtensions and moduleDirectories did not work for me. This did in jest.config.js:
moduleNameMapper: {
"src/(.*)": "<rootDir>/src/$1",
},
I found the solution here and found I ony needed to change moduleNameMapper.
https://til.hashrocket.com/posts/lmnsdtce3y-import-absolute-paths-in-typescript-jest-tests
This jest config can help:
"jest": {
"rootDir": ".",
"roots": ["<rootDir>"],
"modulePaths": ["<rootDir>"],
}
If you are using 'create-react-app' then install these development dependencies:
"babel-cli": "^6.26.0",
"babel-jest": "^22.4.1",
"babel-preset-react-app": "^3.1.1",
And also update the file .babelrc (create this file if it doesn't exist):
{
"presets": [
"#babel/preset-env",
"#babel/preset-react"
]
}
And now both Jest and npm test both work as they should.
No idea how to go about fixing this error. Did some google searching and followed what people recommended. Even removed node_modules and reinstalled but nothing works
I am getting this error:
Error: Cannot find module 'babel-runtime/helpers/interop-require-default' (While processing preset: "/Users/bli1/Development/node_modules/babel-preset-es2015/index.js")
package.json:
{
"name": "braddy",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"start": "npm-run-all --parallel testApp:watch testServer:watch open:src lint:watch",
"open:src": "babel server/server.js",
"testApp": "mocha --reporter nyan tests/testSetup.js \"app/**/*.test.js\"",
"testApp:watch": "npm run testApp -- --watch",
"testServer": "mocha --reporter progress tests/testSetup.js \"server/**/*.test.js\"",
"testServer:watch": "npm run testServer -- --watch",
"lint": "node_modules/.bin/esw webpack.config.* app server tests",
"lint:watch": "npm run lint -- --watch"
},
"author": "",
"license": "ISC",
"dependencies": {
"babel": "^6.5.2",
"babel-cli": "^6.18.0",
"babel-core": "^6.18.2",
"babel-loader": "^6.2.8",
"babel-register": "^6.18.0",
"babel-runtime": "^6.18.0",
"express": "^4.14.0",
"jquery": "^3.1.1",
"react": "^15.4.1",
"react-dom": "^15.4.1",
"react-router": "^3.0.0",
"redux": "^3.6.0",
"redux-thunk": "^2.1.0"
},
"devDependencies": {
"babel-preset-react": "^6.16.0",
"babel-runtime": "^6.18.0",
"cheerio": "^0.22.0",
"eslint": "^3.11.1",
"eslint-plugin-import": "^2.2.0",
"eslint-plugin-react": "^6.8.0",
"eslint-watch": "^2.1.14",
"eventsource-polyfill": "^0.9.6",
"extract-text-webpack-plugin": "^1.0.1",
"jsdom": "^9.8.3",
"loglevel": "^1.4.1",
"mocha": "^3.2.0",
"npm-run-all": "^3.1.2",
"open": "0.0.5",
"react-hot-loader": "^1.3.1",
"webpack": "^1.13.3",
"webpack-dev-middleware": "^1.8.4",
"webpack-dev-server": "^1.16.2",
"webpack-hot-middleware": "^2.13.2"
}
}
The plugin babel-preset-es2015 is missing in your package.json, and not installed when you do npm install. Add it, and install again.