Additional loaders needed after installing Vuetify - vue.js

Question

Clean project built using latest VueCli, added Vuetify using vue add vuetify. Every thing works, added authentication script with i have used 3 times this year successfully i now get this error
ERROR Failed to compile with 1 errors 7:26:18 PM
error in ./src/auth/authService.js
Module parse failed: Unexpected token (18:10)
File was processed with these loaders:
* ./node_modules/eslint-loader/index.js
You may need an additional loader to handle the result of these loaders.
|
| class AuthService extends EventEmitter {
> idToken = null;
| profile = null;
| tokenExpiry = null;
# ./src/router.js 6:0-38 42:52-56 46:2-6
# ./src/main.js
# multi (webpack)-dev-server/client?http://192.168.0.15:3000/sockjs-node (webpack)/hot/dev-server.js ./src/main.js
Stumped, been at this all day with no joy. Is that i need additional processing or config? Is so i can see what.
Any help?
Many thanks
Rolling pack npm packages, deleting Node_modules (getting desperate), reading everything i can find
/auth/authService.js
const localStorageKey = "loggedIn";
const loginEvent = "loginEvent";
class AuthService extends EventEmitter {
idToken = null;
profile = null;
tokenExpiry = null;
login(customState) {
webAuth.authorize({
appState: customState,
});
}
vue.config.js
const webpack = require("webpack");
module.exports = {
devServer: {
port: 3000
},
configureWebpack: {
plugins: [
new webpack.ProvidePlugin({
$: "jquery",
jquery: "jquery",
"window.jQuery": "jquery",
jQuery: "jquery"
})
]
}
};
.eslint.js
module.exports = {
root: true,
env: {
node: true
},
extends: ["plugin:vue/essential", "eslint:recommended", "#vue/prettier"],
rules: {
"no-console": process.env.NODE_ENV === "production" ? "error" : "off",
"no-debugger": process.env.NODE_ENV === "production" ? "error" : "off",
"comma-dangle": [
"error",
{
arrays: "only-multiline",
objects: "only-multiline",
imports: "only-multiline",
exports: "only-multiline",
functions: "ignore"
}
]
},
parserOptions: {
parser: "babel-eslint"
},
overrides: [
{
files: ["**/__tests__/*.{j,t}s?(x)"],
env: {
mocha: true
}
}
]
};
package.json
{
"name": "admin-sept-2019",
"version": "0.1.0",
"private": true,
"scripts": {
"serve": "vue-cli-service serve",
"build": "vue-cli-service build",
"lint": "vue-cli-service lint",
"test:unit": "vue-cli-service test:unit"
},
"dependencies": {
"auth0-js": "^9.11.3",
"core-js": "^2.6.5",
"vue": "^2.6.10",
"vue-router": "^3.0.3",
"vuetify": "^2.0.0",
"vuex": "^3.0.1"
},
"devDependencies": {
"#babel/plugin-transform-classes": "^7.5.5",
"#vue/cli-plugin-babel": "^3.11.0",
"#vue/cli-plugin-eslint": "^3.11.0",
"#vue/cli-plugin-unit-mocha": "^3.11.0",
"#vue/cli-service": "^3.11.0",
"#vue/eslint-config-prettier": "^5.0.0",
"#vue/test-utils": "1.0.0-beta.29",
"babel-eslint": "^10.0.1",
"chai": "^4.1.2",
"eslint": "^5.16.0",
"eslint-plugin-prettier": "^3.1.0",
"eslint-plugin-vue": "^5.0.0",
"node-sass": "^4.9.0",
"prettier": "^1.18.2",
"sass": "^1.17.4",
"sass-loader": "^7.1.0",
"vue-cli-plugin-vuetify": "^0.6.3",
"vue-template-compiler": "^2.6.10",
"vuetify-loader": "^1.2.2"
}
}
npm run serve will build my vue app