第一次使用Firestore，但出现此错误。从我的研究来看，常春藤似乎是一个问题。我没有很多修改tsconfig.app.json的经验，这是我根据其他答案所指向的方向。
我能够从原始项目中进行的唯一修改是使用Angular Fire 6而不是5，而我最初是按照教程学习的。
这是package.json：
{
"name": "language",
"version": "0.0.0",
"scripts": {
"ng": "ng",
"start": "ng serve",
"build": "ng build",
"test": "ng test",
"lint": "ng lint",
"e2e": "ng e2e"
},
"private": true,
"dependencies": {
"@angular/animations": "~9.0.1",
"@angular/cdk": "^9.0.0",
"@angular/common": "~9.0.1",
"@angular/compiler": "~9.0.1",
"@angular/core": "~9.0.1",
"@angular/fire": "^6.0.0-rc.1",
"@angular/flex-layout": "^9.0.0-beta.29",
"@angular/forms": "~9.0.1",
"@angular/material": "^9.0.0",
"@angular/platform-browser": "~9.0.1",
"@angular/platform-browser-dynamic": "~9.0.1",
"@angular/router": "~9.0.1",
"firebase": "^7.8.2",
"rxjs": "~6.5.4",
"rxjs-compat": "^6.5.4",
"tslib": "^1.10.0",
"zone.js": "~0.10.2"
},
"devDependencies": {
"@angular-devkit/build-angular": "~0.900.2",
"@angular/cli": "~9.0.2",
"@angular/compiler-cli": "~9.0.1",
"@angular/language-service": "~9.0.1",
"@types/node": "^12.11.1",
"@types/jasmine": "~3.3.8",
"@types/jasminewd2": "~2.0.3",
"codelyzer": "^5.1.2",
"jasmine-core": "~3.4.0",
"jasmine-spec-reporter": "~4.2.1",
"karma": "~4.1.0",
"karma-chrome-launcher": "~2.2.0",
"karma-coverage-istanbul-reporter": "~2.0.1",
"karma-jasmine": "~2.0.1",
"karma-jasmine-html-reporter": "^1.4.0",
"protractor": "~5.4.0",
"ts-node": "~7.0.0",
"tslint": "~5.15.0",
"typescript": "~3.7.5",
"@angular-devkit/architect": "^0.900.0-0 || ^0.900.0",
"firebase-tools": "^7.12.1",
"fuzzy": "^0.1.3",
"inquirer": "^6.2.2",
"inquirer-autocomplete-prompt": "^1.0.1"
}
}
angular.json
{
"$schema": "./node_modules/@angular/cli/lib/config/schema.json",
"version": 1,
"newProjectRoot": "projects",
"projects": {
"language": {
"projectType": "application",
"schematics": {
"@schematics/angular:component": {
"style": "scss"
}
},
"root": "",
"sourceRoot": "src",
"prefix": "app",
"architect": {
"build": {
"builder": "@angular-devkit/build-angular:browser",
"options": {
"outputPath": "dist/language",
"index": "src/index.html",
"main": "src/main.ts",
"polyfills": "src/polyfills.ts",
"tsConfig": "tsconfig.app.json",
"aot": true,
"assets": [
"src/favicon.ico",
"src/assets"
],
"styles": [
"./node_modules/@angular/material/prebuilt-themes/deeppurple-amber.css",
"src/styles.scss"
],
"scripts": []
},
"configurations": {
"production": {
"fileReplacements": [
{
"replace": "src/environments/environment.ts",
"with": "src/environments/environment.prod.ts"
}
],
"optimization": true,
"outputHashing": "all",
"sourceMap": false,
"extractCss": true,
"namedChunks": false,
"extractLicenses": true,
"vendorChunk": false,
"buildOptimizer": true,
"budgets": [
{
"type": "initial",
"maximumWarning": "2mb",
"maximumError": "5mb"
},
{
"type": "anyComponentStyle",
"maximumWarning": "6kb",
"maximumError": "10kb"
}
]
}
}
},
"serve": {
"builder": "@angular-devkit/build-angular:dev-server",
"options": {
"browserTarget": "language:build"
},
"configurations": {
"production": {
"browserTarget": "language:build:production"
}
}
},
"extract-i18n": {
"builder": "@angular-devkit/build-angular:extract-i18n",
"options": {
"browserTarget": "language:build"
}
},
"test": {
"builder": "@angular-devkit/build-angular:karma",
"options": {
"main": "src/test.ts",
"polyfills": "src/polyfills.ts",
"tsConfig": "tsconfig.spec.json",
"karmaConfig": "karma.conf.js",
"assets": [
"src/favicon.ico",
"src/assets"
],
"styles": [
"./node_modules/@angular/material/prebuilt-themes/deeppurple-amber.css",
"src/styles.scss"
],
"scripts": []
}
},
"lint": {
"builder": "@angular-devkit/build-angular:tslint",
"options": {
"tsConfig": [
"tsconfig.app.json",
"tsconfig.spec.json",
"e2e/tsconfig.json"
],
"exclude": [
"**/node_modules/**"
]
}
},
"e2e": {
"builder": "@angular-devkit/build-angular:protractor",
"options": {
"protractorConfig": "e2e/protractor.conf.js",
"devServerTarget": "language:serve"
},
"configurations": {
"production": {
"devServerTarget": "language:serve:production"
}
}
},
"deploy": {
"builder": "@angular/fire:deploy",
"options": {}
}
}
}
},
"defaultProject": "language"
}
tsconfig.app.json
{
"extends": "./tsconfig.json",
"compilerOptions": {
"outDir": "./out-tsc/app",
"types": [],
},
"files": [
"src/main.ts",
"src/polyfills.ts"
],
"include": [
"src/**/*.d.ts"
],
"exclude": [
"src/test.ts",
"src/**/*.spec.ts"
]
}
谢谢！