How to fix "This relative module was not found: * ./src/main.js in multi..." error when trying to npm run serve - vue.js

When trying to run the application with npm run serve (on iOS), I am getting the following error:
This relative module was not found:
./src/main.js in multi (webpack)-dev-server/client?http://10.0.0.5:8081/sockjs-node ./node_modules/#vue/cli-service/node_modules/webpack/hot/dev-server.js ./src/main.js
Please bear with me, I am new to this.
I have tried a bunch of random stuff like checking for misspelling issues, reinstalling webpack, updating node, and nothing. I have no clue of what this error is about so I am not sure where to look at.
The main.js file looks like this:
import Vue from 'vue'
import App from './App.vue'
import router from './router'
import store from './store/store'
import './registerServiceWorker'
import * as VueGoogleMaps from "vue2-google-maps"
import VeeValidate from 'vee-validate'
import BootstrapVue from 'bootstrap-vue'
Vue.use(VueGoogleMaps, {
load: {
key: "AIzaSyCGiy39IZbj8oxvO4HHqSVjP5RmLSHl7mY",
libraries: "places" // necessary for places input
}
});
Vue.use(VeeValidate);
Vue.use(BootstrapVue);
Vue.config.productionTip = false;
new Vue({
router,
store,
beforeCreate() {
this.$store.commit('initialiseStore');
this.$store.dispatch('commons/initialize');
},
render: h => h(App)
}).$mount('#app')
I expect the live web server to display, but I am getting this compilation error and it is failing.

I faced a similar issue after and spent hours searching.
The issue occurred in my project when I tried to install vuetify using command vue add vuetify. Apparently, the in automatically changes the app entry property in webpack.config automatically.
You can either change the filename itself to main.js or change the webpack config through vue.config.js (by reading the vue cli documentation regararding webpack config).
You can check your webpack.config by using the command vue inspect.
],
entry: {
app: [
'./src/main.js'
]
}
}

I had a similar error, this worked for me but not sure you have the same issue. I found this in one of my webpack configuration files (usually named like webpack.dev.conf.js):
{
test: /\.js$/,
loader: 'babel-loader',
include: [
resolve('src'),
resolve('test'),
resolve('node_modules/webpack-dev-server/client')
]
},
I removed resolve('node_modules/webpack-dev-server/client') and it fixed that issue.

This is an old thread, but I ran across this recently after installing a new module to a Vue project. The problem went away when I updated all my other modules, too.

Related

Web3js fails to import in Vue3 composition api project

I've created a brand new project with npm init vite bar -- --template vue. I've done an npm install web3 and I can see my package-lock.json includes this package. My node_modules directory also includes the web3 modules.
So then I added this line to main.js:
import { createApp } from 'vue'
import App from './App.vue'
import Web3 from 'web3' <-- This line
createApp(App).mount('#app')
And I get the following error:
I don't understand what is going on here. I'm fairly new to using npm so I'm not super sure what to Google. The errors are coming from node_modules/web3/lib/index.js, node_modules/web3-core/lib/index.js, node_modules/web3-core-requestmanager/lib/index.js, and finally node_modules/util/util.js. I suspect it has to do with one of these:
I'm using Vue 3
I'm using Vue 3 Composition API
I'm using Vue 3 Composition API SFC <script setup> tag (but I imported it in main.js so I don't think it is this one)
web3js is in Typescript and my Vue3 project is not configured for Typescript
But as I am fairly new to JavaScript and Vue and Web3 I am not sure how to focus my Googling on this error. My background is Python, Go, Terraform. Basically the back end of the back end. Front end JavaScript is new to me.
How do I go about resolving this issue?
Option 1: Polyfill Node globals/modules
Polyfilling the Node globals and modules enables the web3 import to run in the browser:
Install the ESBuild plugins that polyfill Node globals/modules:
npm i -D #esbuild-plugins/node-globals-polyfill
npm i -D #esbuild-plugins/node-modules-polyfill
Configure optimizeDeps.esbuildOptions to use these ESBuild plugins.
Configure define to replace global with globalThis (the browser equivalent).
import { defineConfig } from 'vite'
import GlobalsPolyfills from '#esbuild-plugins/node-globals-polyfill'
import NodeModulesPolyfills from '#esbuild-plugins/node-modules-polyfill'
export default defineConfig({
⋮
optimizeDeps: {
esbuildOptions: {
2️⃣
plugins: [
NodeModulesPolyfills(),
GlobalsPolyfills({
process: true,
buffer: true,
}),
],
3️⃣
define: {
global: 'globalThis',
},
},
},
})
demo 1
Note: The polyfills add considerable size to the build output.
Option 2: Use pre-bundled script
web3 distributes a bundled script at web3/dist/web3.min.js, which can run in the browser without any configuration (listed as "pure js"). You could configure a resolve.alias to pull in that file:
import { defineConfig } from 'vite'
export default defineConfig({
⋮
resolve: {
alias: {
web3: 'web3/dist/web3.min.js',
},
// or
alias: [
{
find: 'web3',
replacement: 'web3/dist/web3.min.js',
},
],
},
})
demo 2
Note: This option produces 469.4 KiB smaller output than Option 1.
You can avoid the Uncaught ReferenceError: process is not defined error by adding this in your vite config
export default defineConfig({
// ...
define: {
'process.env': process.env
}
})
I found the best solution.
The problem is because you lose window.process variable, and process exists only on node, not the browser.
So you should inject it to browser when the app loads.
Add this line to your app:
window.process = {
...window.process,
};

How to setup a vue-cli with vuetify project to run with IE 11?

I spend a few days to setup a vue.js + vue-cli + typescript + vuetify project to run with IE 11 without success?
I found many posts on the net that explain how it should be done but without success. I tried to combine in almost all the ways possible the setup explained below without success, endind with many different errors up to a blank page
The application runs fine wit Chrome or FF
If someone has such an application running in IE 11 it would be greatly appreciated
Context (all the latest versions):
vue-cli
typescript
vue.js + vue-router + vuex + vuex-persistedstate
vuetify + vue-i18n + vuelidate
axios
Pardon me if some question seems stupid as I'm quite a newbie on babel/webpack dev..
What I've tried and questions :
(i've tried almost all the combinations the following)
Should I use npm install babel-polyfill --saveas explained in the vuetify setup for IE 11 here?
Should I addimport 'babel-polyfill'inmain.tsas explained in the vuetify setup for IE 11 here?
Or should I addimport '#babel/polyfill'inmain.tsas explained here
Should I use npm install #babel/preset-env --save-devas explained in the vuetify setup for IE 11 here or is it unnecessary due tovue-cli being used?
inbabel.config.js, should I replace the content initially created by vue-cli
presets: [
'#vue/app'
]
by as explained here
presets: ['#babel/preset-env']
or (as seen in many places)?
presets: [['#vue/app', useBuiltIns: 'entry' }]]
or add the 2 presets?
presets: [
['#babel/preset-env'],
['#vue/app', useBuiltIns: 'entry' }]
]
Should I add some plugins like explained here?
presets: ['#vue/app'],
plugins: ['#babel/transform-modules-commonjs']
Or change it like this as explained in the vue doc here?
presets: [
['#vue/app', {
polyfills: [
'es6.promise',
'es6.symbol'
]
}]
]
invue.config.js, should I add?
transpileDependencies: [
'vuetify',
'vue-i18n',
'vuelidate',
'axios'
]
[SOLUTION 2019-06-25]
We finally got it to work, the answer from #blackening was very helpful
It happened also that we had javsacript errors in IE 11 with google"reCaptcha"that disappeared after the following setup:
As a prerequisite,vue-cliis installed and the project is created by selecting`'Use Babel alongside TypeScript for auto-detected polyfills'
1) installcore-js#3
npm install core-js#3
2) editmain.tslike this:
import 'core-js/stable'
import Vue from 'vue'
import '#/plugins/vuetify'
{...}
3) editbabel.config.js
module.exports = {
presets: [
['#vue/app', { useBuiltIns: 'entry' }]
]
}
And that's it !
Now we are fighting with IE 11 CSS, but that's a know story... As a nexample, invue to apply a style only to IE, just code it like this
<style scoped>
/* Only for IE 11, wrap div text */
#media all and (-ms-high-contrast: none), (-ms-high-contrast: active) {
.ieMaxWidth90 {
max-width: 90vw; /* 90% view width */
}
}
</style>
I'll do a partial answer.
1) #vue/app and babel presets are included in vue-cli.
https://cli.vuejs.org/guide/browser-compatibility.html#polyfills
This is stated clearly in the vue-cli documentation. But it also specifies:
"If one of your dependencies need polyfills, you have a few options:
If the dependency is written in an ES version that your target environments do not support: Add that dependency to the transpileDependencies option in vue.config.js"
2) You still need to put the babel polyfill in each entry file.
Traditionally: import '#babel/polyfill' in your main.ts.
What babel-preset-env does is that it detects your browserlist then replaces that line with whatever polyfills it deems necessary.
3) #babel/polyfill is deprecated. Who knew.
Some people need extra heavy duty polyfills. That's me. Because internet exploder in office-js + being too used to bleeding edge tech. That's where core-js # 3 comes in.
My webpack build is fully custom for that purpose. But i ripped it out of the vue-cli and modified from there.
My babel loader config :
const BABEL_LOADER = {
loader: 'babel-loader',
options: {
plugins: ['#babel/plugin-syntax-dynamic-import'],
presets: [
// '#vue/app',
['#babel/preset-env', {
targets: {
ie: '11',
browsers: 'last 2 versions',
},
useBuiltIns: 'usage',
corejs: { version: 3, proposals: true },
}],
],
},
};
This is the top of my entry file:
import Vue from 'vue';
import App from './App.vue';
// ------------ Polyfill ------------
import 'core-js/stable';
The core-js replaces #babel/polyfill.
More reading on core-js: https://github.com/zloirock/core-js/blob/master/docs/2019-03-19-core-js-3-babel-and-a-look-into-the-future.md
npm install --save core-js
Top two lines of main.js:
import "core-js/stable";
import "regenerator-runtime/runtime";
In vue.config.js:
module.exports = {
...,
transpileDependencies: ['vuetify']
}
According to this tutorial, after installing the vuetify using the following command:
npm install vuetify --save
Then, import the Vuetify in the main.ts file, like this:
import Vue from 'vue';
import App from './App.vue';
import store from './store';
import Vuetify from 'vuetify';
import 'vuetify/dist/vuetify.min.css';
Vue.use(Vuetify);
Vue.config.productionTip = false;
After that, using this command to install babel-polyfill:
npm install --save babel-polyfill
Then, add the import at the top of the main.ts file, the final code as below:
import 'babel-polyfill';
import Vue from 'vue';
import App from './App.vue';
import store from './store';
import Vuetify from 'vuetify';
import 'vuetify/dist/vuetify.min.css';
Vue.use(Vuetify);
Vue.config.productionTip = false;
new Vue({
store,
render: (h) => h(App),
}).$mount('#app');
Finally, using "npm run serve" command to run the application, it works well in IE 11.

Why do I keep getting this error, Module not found: Error: can't resolve..., in Vuex when using store.js and importing store to my main.js file?

I am using Vuex and using store.js for the first time. In my main.js file I am using
import { store } from './store/store'
new Vue({
el: '#app',
store,
render: h => h(App)
})
and everytime I run this I keep getting this error.
ERROR in ./src/store/store.js
Module not found: Error: Can't resolve '.vue' in '/Users/briansantos/code/Vuex/src/store'
# ./src/store/store.js 1:0-23
# ./src/main.js
# multi main
ERROR in ./src/store/store.js
Module not found: Error: Can't resolve '.vuex' in '/Users/briansantos/code/Vuex/src/store'
# ./src/store/store.js 2:0-25
# ./src/main.js
# multi main
I have tried scouring the internet and have found several peopole saying that this is a dependency issue and I have checked for updates and with no luck have found an answer. Below is my store.js file in my store folder.
import Vue from '.vue';
import Vuex from '.vuex';
Vue.use(Vuex);
export default new Vuex.Store({
state: {
counter: 0
}
})
If anyone could help me understand what is happening and how to correct this. Here is the repo all you have to do is clone and npm install.
https://github.com/brianmsantos/Vuex
Your problem is with the imports of Vue packages. You have to remove the dot prefix from them, like so:
import Vue from 'vue';
import Vuex from 'vuex';
Those packages come from node_modules, thus don't need to be prefixed by .

VUE CLI-3 Project not working on IE-11

I have created an project in vuejs using vue-cli3. It working fine on chrome browser but in IE-11 version blank screen is shown with the following error in console as mentioned in this link: https://drive.google.com/file/d/1QaNwK1ekI2BwFsFyjvgbSsvwHBCmlcAD/view?usp=drivesdk
On clicking console error that I have pointed in above screenshot, it opens a screen as display in given link https://drive.google.com/file/d/1_QXVjcw3cmqeC70LfNyLcr__rnXVIZIh/view?usp=drivesdk with the error in mini-toastr package:
Here is my babel.config.js file code:
module.exports = {
presets: [
['#vue/app', {
polyfills: [
'es6.promise',
'es6.symbol'
]
}]
]
}
and .browserslistrc file code :
> 1%
last 2 versions
not ie <= 8
I am not getting where I am doing a mistake. Is anything I am missing? If anyone need some more info please let me know. Thanks!
I finally ended up with the solution of above issue. To run project on IE-11 version just follow the 2 steps:
Install babel-polyfill using command "npm install --save babel-polyfill".
Import babel-polyfill in your main.js or index.js file at the top of above all imported packages. For e.g Here is your main.js file.
Note: If you import babel-polyfill at the end it does't work.
import 'babel-polyfill'
import Vue from 'vue'
import Vuetify from 'vuetify'
import router from './router'
// include script file
import './lib/DemoScript'
// include all css files
import './lib/DemoCss'
Vue.use(Vuetify)
new Vue({
store,
router,
render: h => h(App),
components: { App }
}).$mount('#app')
Another solution: use the power of vue-cli-3 to leverage browser support: https://cli.vuejs.org/guide/browser-compatibility.html#modern-mode
Just one option when building and you're done once you've chosen browserslist to support :-)
This should work well for building an app.

Unable to use standard Vue plugin with Nuxt

Trying to get the Dragabilly Vue plugin to work with my Nuxt app: https://www.npmjs.com/package/vue-draggabilly
I've used the usual approach that has worked with similar plugins but I don't have the depth of knowledge to crack this one. I am adding into my nuxt config file:
plugins: [ { src: '~/plugins/vue-draggabilly.js', ssr: false } ]
That file includes this code:
import Vue from 'vue'
import VueDraggabilly from 'vue-draggabilly'
Vue.use(VueDraggabilly)
However, I get the following error and I'm not able to use:
vue-draggabilly.js:3 Uncaught ReferenceError: exports is not defined
This refers to this line in the plugin:
exports.install = function (Vue, options) { ....
It is a usual vuew plugin package, but I'm not sure how to get it to work with nuxt. Any help very greatly appreciated!
I see a warning:
warning in ./plugins/vue-draggabilly.js
4:8-22 "export 'default' (imported as 'VueDraggabilly') was not found in 'vue-draggabilly'
I don't know the best answer, but this seems to work:
import Vue from 'vue'
import * as VueDraggabilly from 'vue-draggabilly'
Vue.use(VueDraggabilly)