javascript - Angular 2 类型错误 : Cannot read property 'profile' of null error

Question

我有 angular 2 项目，在更新 @angular/cli 、webpack 和 typescript 版本后我得到了这个错误，令人困惑的一面是我只在这个 angular 2 项目中得到错误，另一个工作得很好。我在下面分享错误和 package.json。我已经在全局和本地更新了 angular cli。是版本问题还是？

\node_modules\@angular\cli\node_modules\webpack\lib\Compilation.js:329
                                    if(_this.profile) {
                                            ^

TypeError: Cannot read property 'profile' of null

包.json

{
"name": "crm-ca",
"version": "0.0.0",
"license": "MIT",
"angular-cli": {},
"scripts": {
  "start": "ng serve",
  "lint": "tslint \"src/**/*.ts\"",
  "test": "ng test",
  "pree2e": "webdriver-manager update",
  "e2e": "protractor"
},
"private": true,
"dependencies": {
  "@angular/common": "^2.3.1",
  "@angular/compiler": "^2.3.1",
  "@angular/core": "^2.3.1",
  "@angular/forms": "^2.3.1",
  "@angular/http": "^2.3.1",
  "@angular/platform-browser": "^2.3.1",
  "@angular/platform-browser-dynamic": "^2.3.1",
  "@angular/router": "^3.3.1",
  "angular2-cookie": "^1.2.5",
  "angular2-text-mask": "^2.1.0",
  "bootstrap": "^4.0.0-alpha.3",
  "core-js": "^2.4.1",
  "rxjs": "^5.0.1",
  "ts-helpers": "^1.1.1",
  "zone.js": "^0.7.2"
},
"devDependencies": {
  "@angular/cli": "^1.0.0",
  "@angular/compiler-cli": "^2.3.1",
  "@types/bootstrap": "^3.3.32",
  "@types/jasmine": "2.5.38",
  "@types/jquery": "^2.0.40",
  "@types/node": "^6.0.42",
  "codelyzer": "~2.0.0-beta.1",
  "jasmine-core": "2.5.2",
  "jasmine-spec-reporter": "2.5.0",
  "karma": "1.2.0",
  "karma-chrome-launcher": "^2.0.0",
  "karma-cli": "^1.0.1",
  "karma-jasmine": "^1.0.2",
  "karma-remap-istanbul": "^0.2.1",
  "protractor": "~4.0.13",
  "ts-node": "1.2.1",
  "tslint": "^4.0.2",
  "typescript": "^2.2.2",
  "webpack": "^2.2.0",
  "webpack-dev-server": "^2.1.0-beta.9"
 }
}

Answer 1

我建议从您的 package.json 中删除 webpack 和 webpack-dev-server。 angular-cli 使用它自己的 webpack 版本，这与您的 package.json 中的内容冲突。我遇到了这个问题，这是对我有用的解决方案。