Can't import css in main.js (Module build failed: ModuleBuildError: Module build failed: BrowserslistError: Unknown browser query `dead`)

[EnochG1]

Hi. I'm using sl-vue-tree, installed by npm. (1.8.4 version) And thanks for your component.

As I write below in main.js, webpack build error occured.

import Vue from 'vue'
import 'babel-polyfill'
import App from './App'

import 'sl-vue-tree/src/sl-vue-tree-minimal.css' // this line makes error

new Vue({
  render: h => h(App)
}).$mount('#app')

I tried both sl-vue-tree-minimal.css and sl-vue-tree-dark.css.
The error message says below.

ERROR in ./node_modules/css-loader/dist/cjs.js??ref--6-2!./node_modules/postcss-loader/lib??ref--6-3!./node_modules/sl-vue-tree/src/sl-vue-tree-minimal.css
Module build failed: BrowserslistError: Unknown browser query `dead`

But when I just copy & paste css code in vue component, it works. (In component, changing <style scoped> to <style>)

Maybe it is because in your package.json
"browserslist": "> 0.25%, not dead"

I'm using packages version like below, using webpack 3.6.0 (using vue cli)

{
	"scripts": {
		"dev": "webpack-dev-server --inline --progress --config build/webpack.dev.conf.js",
		"start": "npm run dev",
		"test": "npm run unit",
		"lint": "eslint --ext .js,.vue src test/unit",
		"build": "node build/build.js",
		"build:prod": "webpack --config build/webpack.prod.conf.js"
	},
	"dependencies": {
		"@babel/polyfill": "^7.0.0",
		"axios": "^0.18.0",
		"es6-promise": "^4.2.5",
		"html-loader": "^0.5.5",
		"jqwidgets-scripts": "^7.1.0",
		"moment": "^2.22.2",
		"sl-vue-tree": "^1.8.4",
		"vue": "^2.5.2",
		"vue-js-modal": "^1.3.28",
		"vue-router": "^3.0.1",
		"vuejs-datepicker": "^1.5.4",
		"vuex": "^3.0.1"
	},
	"devDependencies": {
		"autoprefixer": "^7.1.2",
		"babel-core": "^6.22.1",
		"babel-eslint": "^8.2.1",
		"babel-helper-vue-jsx-merge-props": "^2.0.3",
		"babel-loader": "^7.1.1",
		"babel-plugin-component": "^1.1.1",
		"babel-plugin-syntax-jsx": "^6.18.0",
		"babel-plugin-transform-runtime": "^6.22.0",
		"babel-plugin-transform-vue-jsx": "^3.5.0",
		"babel-preset-env": "^1.3.2",
		"babel-preset-stage-2": "^6.22.0",
		"chalk": "^2.0.1",
		"copy-webpack-plugin": "^4.0.1",
		"css-loader": "^2.1.1",
		"eslint": "^4.15.0",
		"eslint-config-standard": "^10.2.1",
		"eslint-friendly-formatter": "^3.0.0",
		"eslint-loader": "^1.7.1",
		"eslint-plugin-import": "^2.7.0",
		"eslint-plugin-node": "^5.2.0",
		"eslint-plugin-promise": "^3.4.0",
		"eslint-plugin-standard": "^3.0.1",
		"eslint-plugin-vue": "^4.0.0",
		"extract-text-webpack-plugin": "^3.0.0",
		"file-loader": "^1.1.4",
		"friendly-errors-webpack-plugin": "^1.6.1",
		"html-webpack-plugin": "^2.30.1",
		"node-notifier": "^5.1.2",
		"optimize-css-assets-webpack-plugin": "^3.2.0",
		"ora": "^1.2.0",
		"portfinder": "^1.0.13",
		"postcss-import": "^11.0.0",
		"postcss-loader": "^2.0.8",
		"postcss-url": "^7.2.1",
		"rimraf": "^2.6.0",
		"semver": "^5.3.0",
		"shelljs": "^0.7.6",
		"uglifyjs-webpack-plugin": "^1.1.1",
		"url-loader": "^0.5.8",
		"validator": "^10.11.0",
		"vue-loader": "^14.2.2",
		"vue-style-loader": "^3.0.1",
		"vue-template-compiler": "^2.5.2",
		"webpack": "^3.6.0",
		"webpack-bundle-analyzer": "^2.9.0",
		"webpack-dev-server": "^2.9.1",
		"webpack-merge": "^4.1.0"
	},
	"engines": {
		"node": ">= 6.0.0",
		"npm": ">= 3.0.0"
	},
	"browserslist": [
		"> 1%",
		"last 2 versions",
		"not ie <= 8"
	]
}

Could you check this error, please.

Thanks.

[holiber]

Don't try to build this project inside your project. Exclude node_modules in your loader