Cannot set properties of undefined (setting '$vuelidateErrorExtractor') in quasar framework - vue.js

Question

I want to create a simple web app using the quasar framework. to validate form inputs, I'm planning to use vuelidate and vuelidate-Error-Extractor. so I have installed these packages and created a boot file using quasar CLI "vuelidate-error-extractor". and also and add that filename into the plugin in quasar config
but there is a problem when initializing vuelidate-Error-Extractor. can someone help me to fix this
this is the error which i got when try to config this
this is the boot file
import { boot } from 'quasar/wrappers'
import Vuelidate from 'vuelidate'
import VuelidateErrorExtractor, { templates } from "vuelidate-error-extractor";
const messages = {
required: '{attribute} is required.',
requiredCustom: '{attribute} is required.',
min: "Field {attribute} should be exceeded 5 characters",
onlynumbers: '{attribute} should be numbers.',
maxLength: '{attribute} should be less than {max} characters.',
};
// "async" is optional;
// more info on params: https://v2.quasar.dev/quasar-cli/boot-files
export default boot( ({app,Vue}/* { app, router, ... } */) => {
// something to do
app.use(Vuelidate)
app.use(VuelidateErrorExtractor, {
messages,
attributes: {
name: "Name",
email: "Email",
text: "Text"
}
});
app.component("formWrapper", templates.FormWrapper);
})
quasar config
/*
* This file runs in a Node context (it's NOT transpiled by Babel), so use only
* the ES6 features that are supported by your Node version. https://node.green/
*/
// Configuration for your app
// https://quasar.dev/quasar-cli/quasar-conf-js
const { configure } = require('quasar/wrappers');
module.exports = configure(function (ctx) {
return {
// https://quasar.dev/quasar-cli/supporting-ts
supportTS: false,
// https://quasar.dev/quasar-cli/prefetch-feature
// preFetch: true,
// app boot file (/src/boot)
// --> boot files are part of "main.js"
// https://quasar.dev/quasar-cli/boot-files
boot: [
'i18n',
'axios',
'vuelidate'
],
// https://quasar.dev/quasar-cli/quasar-conf-js#Property%3A-css
css: [
'app.css'
],
// https://github.com/quasarframework/quasar/tree/dev/extras
extras: [
// 'ionicons-v4',
// 'mdi-v5',
// 'fontawesome-v5',
// 'eva-icons',
// 'themify',
// 'line-awesome',
// 'roboto-font-latin-ext', // this or either 'roboto-font', NEVER both!
'roboto-font', // optional, you are not bound to it
'material-icons', // optional, you are not bound to it
],
// Full list of options: https://quasar.dev/quasar-cli/quasar-conf-js#Property%3A-build
build: {
vueRouterMode: 'hash', // available values: 'hash', 'history'
// transpile: false,
// publicPath: '/',
// Add dependencies for transpiling with Babel (Array of string/regex)
// (from node_modules, which are by default not transpiled).
// Applies only if "transpile" is set to true.
// transpileDependencies: [],
// rtl: true, // https://quasar.dev/options/rtl-support
// preloadChunks: true,
// showProgress: false,
// gzip: true,
// analyze: true,
// Options below are automatically set depending on the env, set them if you want to override
// extractCSS: false,
// https://quasar.dev/quasar-cli/handling-webpack
// "chain" is a webpack-chain object https://github.com/neutrinojs/webpack-chain
chainWebpack (/* chain */) {
//
},
},
// Full list of options: https://quasar.dev/quasar-cli/quasar-conf-js#Property%3A-devServer
devServer: {
server: {
type: 'http'
},
port: 8080,
open: true // opens browser window automatically
},
// https://quasar.dev/quasar-cli/quasar-conf-js#Property%3A-framework
framework: {
config: {},
// iconSet: 'material-icons', // Quasar icon set
// lang: 'en-US', // Quasar language pack
// For special cases outside of where the auto-import strategy can have an impact
// (like functional components as one of the examples),
// you can manually specify Quasar components/directives to be available everywhere:
//
// components: [],
// directives: [],
// Quasar plugins
plugins: []
},
// animations: 'all', // --- includes all animations
// https://quasar.dev/options/animations
animations: [],
// https://quasar.dev/quasar-cli/developing-ssr/configuring-ssr
ssr: {
pwa: false,
// manualStoreHydration: true,
// manualPostHydrationTrigger: true,
prodPort: 3000, // The default port that the production server should use
// (gets superseded if process.env.PORT is specified at runtime)
maxAge: 1000 * 60 * 60 * 24 * 30,
// Tell browser when a file from the server should expire from cache (in ms)
chainWebpackWebserver (/* chain */) {
//
},
middlewares: [
ctx.prod ? 'compression' : '',
'render' // keep this as last one
]
},
// https://quasar.dev/quasar-cli/developing-pwa/configuring-pwa
pwa: {
workboxPluginMode: 'GenerateSW', // 'GenerateSW' or 'InjectManifest'
workboxOptions: {}, // only for GenerateSW
// for the custom service worker ONLY (/src-pwa/custom-service-worker.[js|ts])
// if using workbox in InjectManifest mode
chainWebpackCustomSW (/* chain */) {
//
},
manifest: {
name: `wedeliver`,
short_name: `wedeliver`,
description: `A Quasar Framework app`,
display: 'standalone',
orientation: 'portrait',
background_color: '#ffffff',
theme_color: '#027be3',
icons: [
{
src: 'icons/icon-128x128.png',
sizes: '128x128',
type: 'image/png'
},
{
src: 'icons/icon-192x192.png',
sizes: '192x192',
type: 'image/png'
},
{
src: 'icons/icon-256x256.png',
sizes: '256x256',
type: 'image/png'
},
{
src: 'icons/icon-384x384.png',
sizes: '384x384',
type: 'image/png'
},
{
src: 'icons/icon-512x512.png',
sizes: '512x512',
type: 'image/png'
}
]
}
},
// Full list of options: https://quasar.dev/quasar-cli/developing-cordova-apps/configuring-cordova
cordova: {
// noIosLegacyBuildFlag: true, // uncomment only if you know what you are doing
},
// Full list of options: https://quasar.dev/quasar-cli/developing-capacitor-apps/configuring-capacitor
capacitor: {
hideSplashscreen: true
},
// Full list of options: https://quasar.dev/quasar-cli/developing-electron-apps/configuring-electron
electron: {
bundler: 'packager', // 'packager' or 'builder'
packager: {
// https://github.com/electron-userland/electron-packager/blob/master/docs/api.md#options
// OS X / Mac App Store
// appBundleId: '',
// appCategoryType: '',
// osxSign: '',
// protocol: 'myapp://path',
// Windows only
// win32metadata: { ... }
},
builder: {
// https://www.electron.build/configuration/configuration
appId: 'wedelivershopapp'
},
// "chain" is a webpack-chain object https://github.com/neutrinojs/webpack-chain
chainWebpackMain (/* chain */) {
// do something with the Electron main process Webpack cfg
// extendWebpackMain also available besides this chainWebpackMain
},
// "chain" is a webpack-chain object https://github.com/neutrinojs/webpack-chain
chainWebpackPreload (/* chain */) {
// do something with the Electron main process Webpack cfg
// extendWebpackPreload also available besides this chainWebpackPreload
},
}
}
});
package.JSON file
{
"name": "wedelivershopapp",
"version": "0.0.1",
"description": "A Quasar Framework app",
"productName": "wedeliver",
"author": "test",
"private": true,
"scripts": {
"test": "echo \"No test specified\" && exit 0"
},
"dependencies": {
"#quasar/extras": "^1.0.0",
"axios": "^0.21.1",
"core-js": "^3.6.5",
"quasar": "^2.0.0",
"vue-i18n": "^9.0.0",
"vuelidate": "^0.7.7",
"vuelidate-error-extractor": "^2.4.1"
},
"devDependencies": {
"#quasar/app": "^3.0.0"
},
"browserslist": [
"last 10 Chrome versions",
"last 10 Firefox versions",
"last 4 Edge versions",
"last 7 Safari versions",
"last 8 Android versions",
"last 8 ChromeAndroid versions",
"last 8 FirefoxAndroid versions",
"last 10 iOS versions",
"last 5 Opera versions"
],
"engines": {
"node": ">= 12.22.1",
"npm": ">= 6.13.4",
"yarn": ">= 1.21.1"
}
}

Answer 1

I was just getting this same error while trying to get Hello.js working with Quasar. In my case it was happening because I had code that was trying to set a property on app.prototype, but with Quasar boot code you need to set the property on app.config.globalProperties instead. (Here's an example in Quasar's documentation section on Boot files)
So I had to change:
app.prototype.$hello = hello
to:
app.config.globalProperties.$hello = hello
So my guess is that in your case there's some similar line in the Vuelidate code that needs to be changed.