removeEventListener not working in IE10, works in Chrome

I am trying to create a mini library using MutationObserver to detect changes in DOM but also to fallback to basic Mutation Events in older browsers. So far so good, it works properly in Chrome...

making the <area> in a <map> tag visible during development

I am trying to use the <area> and <map> tags to make parts of images be links. But I don't know how to make the mapped area visible to control where it is exactly (except watching where the cursor...

Electron failed to install correctly, please delete node_modules/ and try installing again

I am trying to use webpack + react + electron, and when I type in the CLI "electron ." it gives me this error: I deleted node_modules and re-installed all the modules over and over like about 6...

I am getting an "Invalid Host header" message when connecting to webpack-dev-server remotely

I am using as an environment, a Cloud9.io ubuntu VM Online IDE and I have reduced by troubleshooting this error to just running the app with Webpack dev server. I launch it...

verdaccio fail to start having an error "Cannot find module"

I am getting this error, verdaccio just crashed and no longer working after a server restart. When I try to pm2 start verdaccio , I get the following error Error: Cannot find module...

`window` is not being exposed to Jest

I have a test that imports a component that in turn imports a helper file that uses the window object to pull out a query string parameter. I get the following error about window: FAIL ...

Node-sass won't work when using the --watch flag

I am having a problem when using the "--watch" or "-w" flag when running node-sass. I've installed node-sass as a devDependency and specified a script for me to run node-sass. The thing is that...

Set Electron favicon with electron-builder

I would like set new favicon in my Electron App and replace default Electron icon when my app is build. I use electron-builder package. In the doc, i see the icons need to be placed in the build...

Error: No provider for t

I am trying to compile my angular code to production mode via ng build --prod and its successful but in browser I get the error : ERROR p {__zone_symbol__error: Error: Uncaught (in promise):...

jest hangs indefinitely, runs no tests

Every time I run jest it never runs anything. I have let the counter go arbitrarily high. I have run jest with --no-cache jest --debug output is as follows: { "configs": [ { ...

In laravel npm run dev errors:

I have next errors output running npm command for my laravel 5.6 with bootstrap project: $ npm run dev > @ dev /mnt/_work_sdb8/wwwroot/lar/B4test > npm run development > @ development...

How to use the OpenCV c++ with VSCODE

Base on this video https://www.youtube.com/watch?v=l4372qtZ4dc I am trying to use OpenCV in vscode but I canot include the, .lib files what should I do main.cpp #include...

Webpack: TypeError: Cannot read property 'properties' of undefined

Here is the branch and repo in question: https://github.com/Futuratum/moon.holdings/tree/dev /Users/leongaban/projects/Futuratum/moon.holdings/node_modules/webpack-cli/bin/config-yargs.js:89 ...

Error: EBUSY: resource busy or locked, rmdir

The error occurs after following steps in windows: Open one terminal: npm run start:dev Open another terminal: ng build --watch However, it works in Mac by using the above commands. Part of the...

React Native Error: ENOSPC: System limit for number of file watchers reached

I have setup a new blank react native app. After installing few node modules I got this error. Running application on PGN518. internal/fs/watchers.js:173 throw error; ^ Error: ENOSPC:...

Vue.js with Rollup.js renders html comment instead of Vue html

Recently started working with Vue.js and am having difficulties getting a simple interpolation to render inside of my local development app. The Output For some reason, the Vue instance renders...

Why "Watchman crawl failed" error in react-native immediately after updating to macOS catalina?

Trying to run react-native run-ios or build RN project from xcode, as soon as metro bundler starts, this error appears in the terminal: Loading dependency graph...jest-haste-map: Watchman crawl...

Jest watch not detecting changes to files

Running npm t -- --watch is not detecting changes to test files. If I run npm t or npm run test:changed (my script for only running tests that cover changed files via jest -o) everything works...

Jest runs 40 times slower than mocha

I've opened a ticket, but it got closed immediately without any information if this is normal and acceptable; I'll post the question here. Thinking that this is normal could be one of the biggest...

Error: Package exports for tslib do not define a valid '.' target

I literally made no changes to code, and suddenly I woke up to this error one day, backend: internal/modules/cjs/loader.js:454 backend: const e = new Error(`Package exports for '${basePath}' do...

Node Package manager watch command not working

I try to run npm run watch command after installing frontend dependency in my vue js project. I added scripts section in package.json like below- "scripts": { "dev": "npm run development", ...

The AngularCompilerPlugin was not found. The @ngtools/webpack loader requires the plugin

After upgrading my Nativescript app from Ns 6 to Ns 7 and angular 8 to 11, it started to give this webpack error: ERROR in ./app/shared/services/worker.service.worker.ts...

Error with find new pending eth transaction web3.py

I'm trying to find new transactions (maybe not yet added to the blockchain) from a certain address here's how i'm trying to do it with web3.py library and async import asyncio from web3 import...

Some keyspace expired events are not firing (Redis)

I have a Redis inside AWS ElastiCache with key space notification activated (Kx). My problem is that sometimes the expired event is not triggered when a key expires. I am monitoring the key TTL...

Error when running webpack script for simple project

When I run the script for "webpack-dev-server --config webpack.dev.js", I get this error: Error: For the selected environment is no default script chunk format available: JSONP Array push can be...

Typescript npm script with compilation and nodemon issue

I have been following several SO links on how to run both tsc -w and nodemon app.js in a single command. Link which i followed:...

Failed to initialize watch plugin "node_modules/jest-watch-typeahead/filename.js":

I am using react with typescript in my project and also I am doing snapshot testing but when I run npm test command in vscode terminal I am getting error which I have attached in the...

Configure imports relative to root directory in create-react-library library

I am trying to setup a react component library with create-react-library (which uses rollup under the hood) and port over our application's existing component library so that we can share it...

angular 13: Module not found: Error: Can't resolve 'rxjs/operators'

I have upgraded my angular to angular 13. when I run to build SSR it gives me following error. ERROR in ./node_modules/@angular/common/fesm2015/http.mjs 12:0-56 Module not found: Error: Can't...

TypeError: MiniCssExtractPlugin is not a constructor

[webpack-cli] TypeError: MiniCssExtractPlugin is not a constructor at module.exports (/home/andrey/smartadmin-app/webpack.config.js:70:9) at loadConfigByPath...