An unhandled exception occurred: Could not find the implementation for builder @angular-builders/custom-webpack:browser

Question

I was trying to add IMAP to my project, so, I needed a custom builder. But, after changing angular.json and package.json (last two lines). I've got this error. My angular.json fragment:

"architect": {
        "build": {
          "builder": "@angular-builders/custom-webpack:browser",
          "options": {
            "customWebpackConfig": {"path": "custom-webpack.config.js"},

And custom-webpack.config.js is just:

module.exports = {
  target: 'node'
};

My package.json is like this:

{
  "name": "open-mail",
  "version": "0.0.0",
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "build": "ng build",
    "watch": "ng build --watch --configuration development",
    "test": "ng test"
  },
  "private": true,
  "dependencies": {
    "@angular/animations": "~13.1.0",
    "@angular/cdk": "^13.2.3",
    "@angular/common": "~13.1.0",
    "@angular/compiler": "~13.1.0",
    "@angular/core": "~13.1.0",
    "@angular/forms": "~13.1.0",
    "@angular/material": "^13.2.3",
    "@angular/platform-browser": "~13.1.0",
    "@angular/platform-browser-dynamic": "~13.1.0",
    "@angular/router": "~13.1.0",
    "@angular/service-worker": "~13.1.0",
    "imap": "^0.8.19",
    "ngx-clipboard": "^15.0.1",
    "rxjs": "~7.4.0",
    "tslib": "^2.3.0",
    "zone.js": "~0.11.4"
  },
  "devDependencies": {
    "@angular-devkit/build-angular": "~13.1.3",
    "@angular/cli": "~13.1.3",
    "@angular/compiler-cli": "~13.1.0",
    "@types/imap": "^0.8.35",
    "@types/jasmine": "~3.10.0",
    "@types/node": "^12.11.1",
    "jasmine-core": "~3.10.0",
    "karma": "~6.3.0",
    "karma-chrome-launcher": "~3.1.0",
    "karma-coverage": "~2.1.0",
    "karma-jasmine": "~4.0.0",
    "karma-jasmine-html-reporter": "~1.7.0",
    "typescript": "~4.5.2",
    "@angular-builders/custom-webpack": "^7.0.0",
    "@angular-builders/dev-server": "^7.0.0"
  }
}

I've tried lots of ways, but no one was correct, is there any solution?