i tried to install preset-env for using environment variables. After that, my VueJS project got an error, i tried npm r #babel/preset-env, i tried npm i --save #babel-core but nothing changed. Any thoughts?
{
"presets": [
["env", { "modules": false }],
"stage-3",
],
"plugins": [["transform-runtime", { "polyfill": false, "regenerator": true }]]
}
Problem solved with using Babel version from vue.js webpack template repository.
npm r babel-core
add "babel-core": "^6.22.1" to package.json
npm i
Related
I have one react-native app in which I am using "json-schema-rules" library. Now I have also created one library which is getting used in my react-native app like this "file:../custom_library" in package.json.
Now to resolve the version conflict, I decided to use "json-schema-rules" as a peer dependency in my custom library. So, the package.json is like this
Package.json of my react-native app:
{
"dependencies": {
"json-rules-engine": "^2.3.0",
"custom_library": "file:../custom_library"
}
}
package.json of my custom_library:{
"peerDependencies": {
"json-schema-rules": "^2.3.0"
}
}
Now the problem is, whenever I am using metro bundler, I get an error
error: bundling failed: Error: Unable to resolve module json-rules-engine
json-rules-engine could not be found within the project.
This is the case when I am using it in peerDependencies, I do not get any error if I use this library in dependencies.
Please help.
You can try to add an alias for the module in your project's babel config.
This means that when your custom packages tries to import "json-rules-engine" it will get served the version from the main app.
First install 'babel-plugin-module-resolver' then configure the alias in "module-resolver"
babel.config.js
const config = {
presets: ["module:metro-react-native-babel-preset"],
plugins: [
[
"module-resolver",
{
root: ["./src"],
extensions: [".js", ".jsx", ".ios.js", ".android.js"],
alias: {
"json-rules-engine": require.resolve("json-rules-engine")
}
}
]
]
};
module.exports = config;
When run locally, it seems to work fine but crashes when its on pipeline
EDIT: After removing npx, it produces a different error:
I have followed the advice of installing the plugin:
npm install eslint-plugin-react#latest --save-dev
But seeps to repeat itself.
Here's my retracted bitbucket-pipelines.yml config:
- step:
name: CI
caches:
- node
script:
- npm install
- npm run lint
- npm run test
eqautes to package.json
"lint": "eslint --ext .js,.ts,.tsx src --ignore-pattern node_modules/",
"test": "jest --verbose --colors --coverage",
Here's my eslint config file:
{
"env": {
"browser": true,
"es6": true,
"jest": true
},
"extends": [
"eslint:recommended",
"plugin:react/recommended",
"airbnb"
],
"globals": {
"Atomics": "readonly",
"SharedArrayBuffer": "readonly"
},
"parser": "#typescript-eslint/parser",
"parserOptions": {
"ecmaFeatures": {
"jsx": true
},
"ecmaVersion": 2018,
"sourceType": "module"
},
"plugins": [
"react",
"#typescript-eslint"
],
"settings": {
"import/resolver": {
"node": {
"extensions": [".js", ".ts", ".tsx"],
"paths": ["src"]
}
}
},
"rules": {
...
}
}
}
An update to Visual Studio Code fixed this for me.
I was unwittingly on a 2 year old version.
Fixed it by removing NODE_ENV in pipelines's .env due to this:
npm install (in package directory, no arguments):
Install the dependencies in the local node_modules folder.
In global mode (ie, with -g or --global appended to the command), it
installs the current package context (ie, the current working
directory) as a global package.
By default, npm install will install all modules listed as
dependencies in package.json.
With the --production flag (or when the NODE_ENV environment variable
is set to production), npm will not install modules listed in
devDependencies.
NOTE: The --production flag has no particular meaning when adding a
dependency to a project.
it happened to to.
tried hard to find the answer.
Apparently, eslint searchs for a roots in the working directory, or something like that, to find the modules to import.
It happens that i've had two apps in my project folder, and only one had the eslintrc.josn.
I fixed to use eslint on the entire project oppening the vs settings.json and add the following:
"eslint.workingDirectories": ["./app1","./app2"...]
if u have more than one app on ur project folder, u should try it
I have updated the SDK using this instruction. And I ran the app. The app shows this error in red screen:
babelHelpers.readOnlyError is not a function. (In
‘babelHelpers.readOnlyError(“newSize”)’, ‘babelHelpers.readOnlyError’
is undefined )
How can I solve this error?
I tried clearing the yarn cache, installing yarn packages again but do not work.
I found this webpage solving my problem.
Add the following in package.json:
"devDependencies": {
"babel-plugin-transform-remove-console": "6.9.4",
"babel-preset-expo": "^5.0.0"
}
make the .babelrc:
{
"presets": ["babel-preset-expo"],
"env": {
"production": {
"plugins": [
"transform-remove-console"
]
}
}
}
Update .babelrc and package.json
Delete node_modules folder
Install babel-plugin-transform-remove-console, babel-preset-expo. Run yarn or npm.
Run expo clearing cache using expo start -c
Trying to build my react native app I get this error:
error: bundling failed: SyntaxError: /xxxxr/node_modules/react-native/node_modules/react-native/Libraries/Components/Switch/Switch.js: Support for the experimental syntax 'optionalChaining' isn't currently enabled (103:41):
I have added:
{
"presets": ["react-native"],
"plugins": ["#babel/plugin-proposal-optional-chaining"]
}
To my .babelrc but I still get the error. How can I build my project?
Try installing plugin-proposal-optional-chaining plugin as follows:
npm install --save-dev #babel/plugin-proposal-optional-chaining
Try adding below code to your .babelrc:
{
"plugins": [
"#babel/plugin-proposal-optional-chaining"
],
"presets": [
"react-native"
]
}
Hope it will help you.
Basically, the component isn't getting compiled, so I get an Unexpected token < error when it runs into <template>
I've run the following commands:
$ npm install --save-dev jest
$ npm install --save-dev vue-jest
$ npm install --save-dev vue-test-utils
and I've out the following in package.json:
"scripts": {
"dev": "node build/dev-server.js",
"build": "node build/build.js",
"test": "jest"
},
...
"jest": {
"unmockedModulePathPatterns": [
"<rootDir>/node_modules/vue"
],
"moduleFileExtensions": [
"js",
"vue"
],
"scriptPreprocessor": "index.js"
}
I created a __test__ folder in the root directory with a simple test:
const Vue = require("vue");
const VueTestUtils = require("vue-test-utils");
Vue.config.debug = true;
Vue.config.async = false;
Vue.use(VueTestUtils.install);
import Hello from '../src/components/Hello.vue'
const Constructor = Vue.extend(Hello)
const vm = new Constructor().$mount()
describe('initial test', () => {
it('should be 1', () => {
expect(1).toBe(1)
})
})
I recently got this error as well, and not quite sure how to configure Vue.js so it will run using the compiler-included build:
[Vue warn]: You are using the runtime-only build of Vue where the template compiler is not available. Either pre-compile the templates into render functions, or use the compiler-included build.
Been looking around for a while, so any help would be appreciated
You need to use a Jest transform to transform Jest Vue files. A Jest transformer is a synchronous function, that takes the file and path as input and outputs transpiled code.
I maintain a npm package that does it for you - vue-jest.
npm install --save-dev vue-jest
You need to add a jest section to your package.json (or in a seperate file with --config). Your config should look something like this:
"jest": {
"moduleFileExtensions": [
"js",
"json",
"vue"
],
"transform": {
"^.+\\.js$": "babel-jest",
".*\\.(vue)$": "vue-jest"
}
}
This tells jest to use jest-vue as a transform for files with a .vue extension.
You can see a working repo using Vue Test Utils here - https://github.com/eddyerburgh/vue-test-utils-jest-example