我不会构建一个有角度的应用程序

Question

谁能帮助解决以下问题？我被困在这3天了。我真的很感激

我尝试了很多东西，但似乎越来越糟糕。

我正在尝试使用 ng build --prod 构建一个 Angular 应用程序，但出现以下错误：

./node_modules/ngx-currency/fesm5/ngx-currency.js 模块中的错误 构建失败（从 ./node_modules/@angular-devkit/build-optimizer/src/build-optimizer/webpack-loader.js）： TypeError：无法读取未定义的属性“种类” 在 isAngularDecoratorMetadataExpression (C:\Users\wagne\Documents\ABC Pneus - Intragroup\app\intragroup-abcpneus-frenteloja - Copia\node_modules@angular-devkit\build-optimizer\src\transforms\scrub-file.js:245:35） 在 checkNodeForDecorators (C:\Users\wagne\Documents\ABC Pneus - Intragroup\app\intragroup-abcpneus-frenteloja - Copia\node_modules@angular-devkit\build-optimizer\src\transforms\scrub-file.js:70:21) 在 visitNodes (C:\Users\wagne\Documents\ABC Pneus - Intragroup\app\intragroup-abcpneus-frenteloja - Copia\node_modules@angular-devkit\build-optimizer\node_modules\typescript\lib\typescript.js:15788:30） 在 Object.forEachChild (C:\Users\wagne\Documents\ABC Pneus - Intragroup\app\intragroup-abcpneus-frenteloja - Copia\node_modules@angular-devkit\build-optimizer\node_modules\typescript\lib\typescript.js:16014:24） 在 checkNodeForDecorators (C:\Users\wagne\Documents\ABC Pneus - Intragroup\app\intragroup-abcpneus-frenteloja - Copia\node_modules@angular-devkit\build-optimizer\src\transforms\scrub-file.js:61:31) 在 visitNode (C:\Users\wagne\Documents\ABC Pneus - Intragroup\app\intragroup-abcpneus-frenteloja - Copia\node_modules@angular-devkit\build-optimizer\node_modules\typescript\lib\typescript.js:15779:24） 在 Object.forEachChild (C:\Users\wagne\Documents\ABC Pneus - Intragroup\app\intragroup-abcpneus-frenteloja - Copia\node_modules@angular-devkit\build-optimizer\node_modules\typescript\lib\typescript.js:15909:21） 在 checkNodeForDecorators (C:\Users\wagne\Documents\ABC Pneus - Intragroup\app\intragroup-abcpneus-frenteloja - Copia\node_modules@angular-devkit\build-optimizer\src\transforms\scrub-file.js:61:31) 在 visitNode (C:\Users\wagne\Documents\ABC Pneus - Intragroup\app\intragroup-abcpneus-frenteloja - Copia\node_modules@angular-devkit\build-optimizer\node_modules\typescript\lib\typescript.js:15779:24） 在 Object.forEachChild (C:\Users\wagne\Documents\ABC Pneus - Intragroup\app\intragroup-abcpneus-frenteloja - Copia\node_modules@angular-devkit\build-optimizer\node_modules\typescript\lib\typescript.js:15966:24） 在 checkNodeForDecorators (C:\Users\wagne\Documents\ABC Pneus - Intragroup\app\intragroup-abcpneus-frenteloja - Copia\node_modules@angular-devkit\build-optimizer\src\transforms\scrub-file.js:61:31) 在 visitNode (C:\Users\wagne\Documents\ABC Pneus - Intragroup\app\intragroup-abcpneus-frenteloja - Copia\node_modules@angular-devkit\build-optimizer\node_modules\typescript\lib\typescript.js:15779:24） 在 Object.forEachChild (C:\Users\wagne\Documents\ABC Pneus - Intragroup\app\intragroup-abcpneus-frenteloja - Copia\node_modules@angular-devkit\build-optimizer\node_modules\typescript\lib\typescript.js:15977:24） 在 checkNodeForDecorators (C:\Users\wagne\Documents\ABC Pneus - Intragroup\app\intragroup-abcpneus-frenteloja - Copia\node_modules@angular-devkit\build-optimizer\src\transforms\scrub-file.js:61:31) 在 visitNode (C:\Users\wagne\Documents\ABC Pneus - Intragroup\app\intragroup-abcpneus-frenteloja - Copia\node_modules@angular-devkit\build-optimizer\node_modules\typescript\lib\typescript.js:15779:24） 在 Object.forEachChild (C:\Users\wagne\Documents\ABC Pneus - Intragroup\app\intragroup-abcpneus-frenteloja - Copia\node_modules@angular-devkit\build-optimizer\node_modules\typescript\lib\typescript.js:15873:21)

我的配置是：

tsconfig.json

{
  "compileOnSave": false,
  "angularCompilerOptions": {
    "disableTypeScriptVersionCheck": true
  },
  "compilerOptions": {
    "module": "esnext",
    "outDir": "./dist/out-tsc",
    "sourceMap": true,
    "declaration": false,
    "moduleResolution": "node",
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "target": "es2015",
    "typeRoots": [
      "node_modules/@types"
    ],
    "lib": [
      "es2017",
      "dom",
      "ES2017.object"
    ]
  }
}

package.json

{
  "name": "angular-ngrx-course",
  "version": "0.0.0",
  "license": "MIT",
  "scripts": {
    "ng": "ng",
    "start": "ng serve  --proxy-config ./proxy.json",
    "server": "ts-node -P ./server/server.tsconfig.json ./server/server.ts",
    "build": "ng build",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e"
  },
  "private": true,
  "dependencies": {
    "@angular-devkit/schematics": "^8.0.0",
    "@angular/animations": "^8.0.2",
    "@angular/cdk": "^8.0.0",
    "@angular/common": "^8.0.2",
    "@angular/compiler": "^8.0.2",
    "@angular/core": "^8.0.2",
    "@angular/forms": "^8.0.2",
    "@angular/material": "^8.0.0",
    "@angular/material-moment-adapter": "^8.0.0",
    "@angular/platform-browser": "^8.0.2",
    "@angular/platform-browser-dynamic": "^8.0.2",
    "@angular/router": "^8.0.2",
    "@ngrx/data": "^8.0.1",
    "@ngrx/effects": "^8.0.1",
    "@ngrx/entity": "^8.0.1",
    "@ngrx/router-store": "^8.0.1",
    "@ngrx/store": "^8.0.1",
    "@ngrx/store-devtools": "^8.0.1",
    "body-parser": "^1.18.2",
    "core-js": "^2.4.1",
    "express": "^4.16.2",
    "hammerjs": "^2.0.8",
    "moment": "^2.22.2",
    "rxjs": "^6.3.3",
    "zone.js": "~0.9.1"
  },
  "devDependencies": {
    "@angular-devkit/build-angular": "~0.800.0",
    "@angular/cli": "^8.0.1",
    "@angular/compiler-cli": "^8.0.2",
    "@angular/language-service": "^8.0.2",
    "@ngrx/schematics": "^8.0.1",
    "@types/express": "^4.0.39",
    "@types/jasmine": "~2.5.53",
    "@types/jasminewd2": "~2.0.2",
    "@types/node": "~6.0.60",
    "codelyzer": "^5.0.1",
    "jasmine-core": "~2.6.2",
    "jasmine-spec-reporter": "~4.1.0",
    "karma": "^4.1.0",
    "karma-chrome-launcher": "~2.1.1",
    "karma-cli": "~1.0.1",
    "karma-coverage-istanbul-reporter": "^1.2.1",
    "karma-jasmine": "~1.1.0",
    "karma-jasmine-html-reporter": "^0.2.2",
    "protractor": "^6.0.0",
    "ts-node": "~3.2.0",
    "tslint": "~5.7.0",
    "typescript": "~3.4.5"
  }
}

Answer 1

由于软件包版本不兼容，此问题出现在 prod build 中。 使用最新的可用软件包版本并不总是一个好主意，您应该尝试降级软件包版本来解决此类问题。

在控制台中检查哪个功能失败以及它属于哪个包，然后尝试将该包降级到稳定的发布版本。

Answer 2

我用不那么简单的步骤解决了这个问题。

首先我卸载并安装了节点和 npm 之后，我在此链接中按照 IAMEVANHE 的食谱进行操作 https://github.com/nodejs/node-gyp/issues/119#issuecomment-318609877 老实说，它一开始并没有奏效，但我认为这可能是下面步骤之前的重要一步。 然后我将 angular 更新到版本 8。我必须解决 ViewChild 的一些简单问题，另一个是模块导入问题。

就是这样。我希望它可以帮助其他人。