@angular/common 错误 TS2304 找不到名称“未知”

Question

我正在尝试构建一个旧项目，但由于以下错误而无法执行。使用 Angular 5.2.9 构建项目但遇到这些错误。有人可以帮忙

我的 package.json 文件如下所示

"dependencies": {
 "@angular/core": ">=5.2.9",
 "@angular/router": ">=5.2.9",
 "ng-packagr": "^3.0.6",
 "rxjs-compat": "^6.2.2"
 },

  "devDependencies": {
    "@angular/common": ">=5.2.9",
    "@angular/compiler": ">=5.2.9",
    "@angular/compiler-cli": "^6.1.0",
    "@angular/platform-browser": ">=5.2.9",
    "@angular/platform-browser-dynamic": ">=5.2.9",
    "@angular/platform-server": ">=5.2.9",
    "@types/es6-shim": "^0.31.32",
    "@types/jasmine": "^2.5.40",
    "@types/selenium-webdriver": "^2.53.39",
    "awesome-typescript-loader": "^3.1.2",
    "extract-text-webpack-plugin": "^2.1.0",
    "jasmine-core": "^2.5.2",
    "rxjs": "^6.5.2",
    "source-map-loader": "^0.2.0",
    "ts-helpers": "^1.1.2",
    "tslint": "^4.5.1",
    "tslint-loader": "^3.4.3",
    "typescript": "^2.2.1",
    "webpack": "2.1.0-beta.22",
    "webpack-dev-middleware": "^1.10.1",
    "webpack-dev-server": "^2.4.1",
    "webpack-md5-hash": "0.0.5",
    "webpack-merge": "^4.0.0",
    "zone.js": ">=0.7.2"
  },

正在构建，但在运行测试用例时我收到了这些警告

WARNING in ./~/rxjs-compat/observable/merge.js
Cannot find source file '../src/compat/observable/merge.ts': Error: Can't resolve '../src/compat/observable/merge.ts' in 'D:\MASTERS\master-sales\node_modules\rxjs-compat\observable'
 @ ./~/rxjs/observable/merge.js 6:9-48
 @ ./~/@angular/core/esm5/core.js
 @ ./src/master-sales.service.ts
 @ ./src/master-sales.service.spec.ts
 @ ./src \.spec\.ts
 @ ./spec-bundle.js

WARNING in ./~/rxjs-compat/add/observable/from.js
Cannot find source file '../../src/compat/add/observable/from.ts': Error: Can't resolve '../../src/compat/add/observable/from.ts' in 'D:\MASTERS\master-sales\node_modules\rxjs-compat\add\observable'
 @ ./~/rxjs-compat/Rx.js 24:0-32
 @ ./~/rxjs/Rx.js
 @ ./spec-bundle.js

WARNING in ./~/rxjs-compat/add/observable/fromEvent.js
Cannot find source file '../../src/compat/add/observable/fromEvent.ts': Error: Can't resolve '../../src/compat/add/observable/fromEvent.ts' in 'D:\MASTERS\master-sales\node_modules\rxjs-compat\add\observable'
 @ ./~/rxjs-compat/Rx.js 25:0-37
 @ ./~/rxjs/Rx.js
 @ ./spec-bundle.js
WARNING in ./~/rxjs-compat/add/observable/defer.js
Cannot find source file '../../src/compat/add/observable/defer.ts': Error: Can't resolve '../../src/compat/add/observable/defer.ts' in 'D:\MASTERS\master-sales\node_modules\rxjs-compat\add\observable'
 @ ./~/rxjs-compat/Rx.js 21:0-33
 @ ./~/rxjs/Rx.js
 @ ./spec-bundle.js

Answer 1

请在依赖项中添加"typescript": "3.1.1"：

"dependencies": {
  ...
  "typescript": "3.1.1"
  ...
}

注意：您可以使用任何其他版本

您的 package.json 应该如下所示：

"dependencies": {
    "@angular/common": "^5.0.0",
    "@angular/compiler": "^5.0.0",
    "@angular/core": "^5.0.0",
    "@angular/forms": "^5.0.0",
    "@angular/http": "^5.0.0",
    "@angular/platform-browser": "^5.0.0",
    "@angular/platform-browser-dynamic": "^5.0.0",
    "@angular/router": "^5.0.0",
    "core-js": "^2.4.1",
    "rxjs": "^5.5.2",
    "zone.js": "^0.8.14"
},
"devDependencies": {
    "@angular/cli": "1.5.0",
    "@angular/compiler-cli": "^5.0.0",
    "@angular/language-service": "^5.0.0",
    "@types/node": "~6.0.60",
    "codelyzer": "~3.2.0",
    "ts-node": "~3.2.0",
    "tslint": "~5.7.0",
    "typescript": "~2.4.2"
}