你好，我有一个非常奇怪的问题。在运行以下命令之前：
sudo npm install
在 Angular 5 项目中，我可以通过 ng 创建模块、组件和服务。
然后：
sudo npm install
当我想要创建服务时:
sudo ng generate service myName
我收到以下错误信息:
Error: classify is not defined, classify is not defined
Node 版本: 9.5.0
npm 版本: 5.6.0
Angular CLI: 1.7.1
Angular 版本: 5.2.6
我的 package.json 文件:
"@angular/cli": "^1.6.5",
"@angular-devkit/schematics": "0.0.42",
"@angular-devkit/core": "0.0.23",
"@angular/compiler-cli": "^5.2.1",
"@angular/language-service": "^5.2.1",
"@types/jasmine": "^2.8.5",
"@types/jasminewd2": "^2.0.3",
"@types/node": "^6.0.96",
"codelyzer": "^4.1.0",
"jasmine-core": "^2.9.1",
"jasmine-spec-reporter": "^4.2.1",
"karma": "^1.7.1",
"karma-chrome-launcher": "~2.1.1",
"karma-cli": "~1.0.1",
"karma-coverage-istanbul-reporter": "^1.3.3",
"karma-jasmine": "^1.1.1",
"karma-jasmine-html-reporter": "^0.2.2",
"protractor": "~5.1.2",
"ts-node": "^3.3.0",
"tslint": "~5.7.0",
"typescript": "~2.4.2"
感谢您的帮助。