Angular 普遍错误 - app.auth 不是函数

Question

技术堆栈： AngularFire2、Firebase、Firebase 函数、Angular 7、

将网站部署到 Firebase Functions 时出现错误，尽管它在本地正常运行。

Angular Cli 和 Angular 通用。

AngularFire2 version: "@angular/fire": "^5.1.2"
Firebase version:    "firebase": "^5.9.3"

我已经调试过了，这似乎是 AngularFire2 的问题。

我尝试过的事情：

我已经升级并降级了库，看看是否能修复它，但没有成功。

此外，尝试卸载 npm 包并删除包锁，但也没有成功。

这是 firebase 控制台（函数）上的堆栈跟踪错误：

ERROR TypeError: app.auth is not a function
    at /user_code/dist/server.js:152999:24
    at ZoneDelegate.invoke (/user_code/dist/server.js:555:26)
    at Zone.run (/user_code/dist/server.js:314:43)
    at NgZone.runOutsideAngular (/user_code/dist/server.js:20244:28)
    at new AngularFireAuth (/user_code/dist/server.js:152997:26)
    at _createClass (/user_code/dist/server.js:24259:20)
    at _createProviderInstance (/user_code/dist/server.js:24221:26)
    at resolveNgModuleDep (/user_code/dist/server.js:24185:21)
    at _createClass (/user_code/dist/server.js:24251:29)
    at _createProviderInstance (/user_code/dist/server.js:24221:26)

这是我现在的webpack.prerender.config.js:

const path = require('path');
const webpack = require('webpack');

const regex = /firebase\/(app|firestore)/;

module.exports = {
  mode: 'none',
  entry: {
    // This is our Express server for Dynamic universal
    server: './server.ts'
  },
  target: 'node',
  resolve: { extensions: ['.ts', '.js'] },
  optimization: {
    minimize: false
  },
  output: {
    // Puts the output at the root of the dist folder
    path: path.join(__dirname, 'dist'),
    filename: '[name].js',
    libraryTarget: 'umd',
    library: 'app'
  },
   // this makes sure we include node_modules and other 3rd party libraries
  externals: [function(context, request, callback) {

    // exclude firebase products from being bundled, so they will be loaded using require() at runtime.
    if(regex.test(request)) {
      return callback(null, 'commonjs ' + request);
    }
    callback();
  }],
  module: {
    rules: [
      { test: /\.ts$/, loader: 'ts-loader' },
      {
        // Mark files inside `@angular/core` as using SystemJS style dynamic imports.
        // Removing this will cause deprecation warnings to appear.
        test: /(\|\/)@angular(\|\/)core(\|\/).+\.js$/,
        parser: { system: true },
      },
    ]
  },
  plugins: [
    new webpack.ContextReplacementPlugin(
      // fixes WARNING Critical dependency: the request of a dependency is an expression
      /(.+)?angular(\|\/)core(.+)?/,
      path.join(__dirname, 'src'), // location of your src
      {} // a map of your routes
    ),
    new webpack.ContextReplacementPlugin(
      // fixes WARNING Critical dependency: the request of a dependency is an expression
      /(.+)?express(\|\/)(.+)?/,
      path.join(__dirname, 'src'),
      {}
    )
  ]
};

Answer 1

出现此问题的原因：

"engines": { "node": "8" },

函数文件夹中的 package.json 文件中缺少

。似乎缺少此内容会导致 html 无法使用 ssr 完全呈现。

Angular 普遍错误 - app.auth 不是函数

Angular Universal error - app.auth is not a function

firebase

google-cloud-functions

angularfire2

angular-universal

angular