jest ReferenceError: Vue is not defined - vue.js

Question

We are introducing Jest to an existing project.
However, I wrote an example test code.
The above error occurred.
ReferenceError: Vue is not defined
1 | import User from "../components/modal/ad/AdAdd";
> 2 | import { mount } from "#vue/test-utils";
| ^
3 |
4 | describe("user component", () => {
5 | let wrapper;
How can I solve this??
//User.test.js
import User from "../components/modal/ad/AdAdd";
import { mount } from "#vue/test-utils";
describe("user component", () => {
let wrapper;
beforeEach(() => {
wrapper = mount(User);
});
test("render", () => {
expect(wrapper.vm.oSid).toBe(0);
});
});
export default {
data() {
return {
Sid: 0,
deleteList: [],
};
},
//package.json
"dependencies": {
"eslint-plugin-jest": "^26.2.2",
"vue": "^2.6.11",
"vuetify": "^2.4.0",
"vuex": "^3.4.0",
},
"devDependencies": {
"#babel/core": "^7.18.0",
"#babel/preset-env": "^7.18.0",
"#types/jest": "^27.5.1",
"#vue/cli-plugin-babel": "~4.5.0",
"#vue/cli-service": "^3.0.5",
"#vue/eslint-config-prettier": "^6.0.0",
"#vue/test-utils": "^2.0.0",
"babel-core": "^7.0.0-bridge.0",
"babel-eslint": "^10.1.0",
"babel-jest": "^28.1.0",
"eslint": "^6.7.2",
"eslint-plugin-prettier": "^3.3.1",
"eslint-plugin-vue": "^6.2.2",
"jest": "^28.1.0",
"jest-environment-jsdom": "^28.1.0",
"speed-measure-webpack-plugin": "^1.5.0",
"uglifyjs-webpack-plugin": "^2.2.0",
"vue-cli-plugin-vuetify": "~2.4.0",
"vue-jest": "^3.0.7",
"vue-template-compiler": "^2.6.11",
"vuetify-loader": "^1.7.0"
}
I just mounted it, but it says the view is undefined. I don't know how to solve it.
What's wrong??
I haven't been able to solve the above error for several days.
I want to solve it.
Any help would be appreciated.

Answer 1

I had the same error with vue3 and jest v.28, what solved it was to add
testEnvironmentOptions: {
customExportConditions: ["node", "node-addons"],
},
into jest.config.js.

Answer 2

You are using Vue version 2 with #vue/test-utils 2.0.0 which is for Vue version 3.
You can find the correct #vue/test-utils version for Vue 2 here