运行ng serve时出现Cannot find module '@angular/compiler-cli/ngcc'错误求助

我在启动Angular应用时碰到了这个棘手的错误：

Cannot find module '@angular/compiler-cli/ngcc'

我已经试了网上能搜到的好几种解决方案，但问题依然存在：

• 卸载并重新安装@angular/cli
• 核对package.json里各依赖版本的兼容性
• 确认devDependencies中使用的是@angular/cli而非旧的@angular-cli包
• 完全卸载并重装npm
• 删除node_modules文件夹和package-lock.json后重新执行npm install

下面是我的package.json内容：

{ "name": "techlog-admin", "version": "3.2.1", "license": "MIT", "browserslist": [ "> 1%", "last 2 versions", "IE 11" ], "scripts": { "ng": "ng", "conventional-changelog": "conventional-changelog", "start": "ng serve", "build": "ng build", "build:prod": "npm run build -- --prod --aot", "test": "ng test", "test:coverage": "rimraf coverage && npm run test -- --code-coverage", "lint": "ng lint", "lint:fix": "ng lint techlog-admin-demo --fix", "lint:styles": "stylelint ./src/**/*.scss", "lint:ci": "npm run lint && npm run lint:styles", "pree2e": "webdriver-manager update --standalone false --gecko false", "e2e": "ng e2e", "docs": "compodoc -p src/tsconfig.app.json -d docs", "docs:serve": "compodoc -p src/tsconfig.app.json -d docs -s", "prepush": "npm run lint:ci", "release:changelog": "npm run conventional-changelog -- -p angular -i CHANGELOG.md -s" }, "dependencies": { "@agm/core": "^1.0.0-beta.5", "@angular/animations": "^7.2.13", "@angular/cdk": "^7.3.7", "@angular/common": "^7.2.11", "@angular/compiler": "^7.2.11", "@angular/core": "^7.2.11", "@angular/forms": "^7.2.11", "@angular/http": "^7.2.11", "@angular/material": "^7.3.7", "@angular/platform-browser": "^7.2.11", "@angular/platform-browser-dynamic": "^7.2.11", "@angular/router": "^7.2.11", "@asymmetrik/ngx-leaflet": "3.0.1", "@fortawesome/angular-fontawesome": "^0.3.0", "@fortawesome/fontawesome-svg-core": "^1.2.17", "@fortawesome/free-solid-svg-icons": "^5.8.1", "@nebular/auth": "3.4.2", "@nebular/bootstrap": "3.4.2", "@nebular/moment": "^3.4.0", "@nebular/security": "3.4.2", "@nebular/theme": "3.4.2", "@ng-bootstrap/ng-bootstrap": "^4.0.0", "@ng-idle/core": "^6.0.0-beta.5", "@ng-idle/keepalive": "^6.0.0-beta.5", "@ngx-translate/core": "^11.0.1", "@swimlane/ngx-charts": "^10.0.0", "angular-tree-component": "7.2.0", "angular2-chartjs": "0.4.1", "angular2-toaster": "^7.0.0", "bootstrap": "^4.3.1", "chart.js": "^2.8.0", "ckeditor": "4.7.3", "classlist.js": "1.1.20150312", "core-js": "2.5.1", "echarts": "^4.0.2", "eva-icons": "^1.1.0", "intl": "1.2.5", "ionicons": "2.0.1", "jquery": "^3.4.0", "leaflet": "1.2.0", "nebular-icons": "1.1.0", "ng2-ckeditor": "^1.2.2", "ng2-completer": "2.0.8", "ng2-smart-table": "1.3.5", "ngx-echarts": "^4.0.1", "ngx-show-hide-password": "^2.0.3", "ngx-spinner": "^7.1.4", "ngx-typeahead": "^6.2.0", "normalize.css": "6.0.0", "or": "^0.2.0", "pace-js": "1.0.2", "roboto-fontface": "0.8.0", "rxjs": "6.4.0", "rxjs-compat": "6.3.0", "socicon": "3.0.5", "tinymce": "4.5.7", "ts-md5": "^1.2.4", "tslib": "^1.9.0", "typeface-exo": "0.0.22", "web-animations-js": "2.2.5", "zone.js": "^0.8.29" }, "devDependencies": { "@angular-devkit/build-angular": "^0.801.3", "@angular/cli": "^8.1.3", "@angular/compiler-cli": "^7.2.15", "@angular/language-service": "7.2.11", "@compodoc/compodoc": "^1.1.10", "@fortawesome/fontawesome-free": "^5.2.0", "@types/d3-color": "1.0.5", "@types/googlemaps": "^3.30.4", "@types/jasmine": "2.5.54", "@types/jasminewd2": "2.0.3", "@types/leaflet": "1.2.3", "@types/node": "6.0.90", "codelyzer": "^4.5.0", "conventional-changelog-cli": "1.3.4", "husky": "0.13.3", "jasmine-core": "2.6.4", "jasmine-spec-reporter": "4.1.1", "karma": "1.7.1", "karma-chrome-launcher": "2.1.1", "karma-cli": "1.0.1", "karma-coverage-istanbul-reporter": "1.3.0", "karma-jasmine": "1.1.0", "karma-jasmine-html-reporter": "0.2.2", "npm-run-all": "4.0.2", "protractor": "5.1.2", "rimraf": "2.6.1", "stylelint": "7.13.0", "ts-node": "3.2.2", "tslint": "5.7.0", "tslint-language-service": "^0.9.9", "typescript": "3.2.4" } }

如果需要更多信息（比如完整的错误堆栈、Node和npm的具体版本），我会第一时间补充，麻烦大家帮忙看看问题出在哪了，谢谢！

内容的提问来源于stack exchange，提问作者Fergant