【发布时间】：2018-11-01 12:33:22
【问题描述】：
我最近将我的 Angular 项目更新为 Angular 7。现在，当我从 CLI 运行“ng serve --open”时，我收到以下错误：
未捕获的类型错误：ctorParameters.map 不是函数 在 ReflectionCapabilities._ownParameters (core.js:1394) 在 ReflectionCapabilities.parameters (core.js:1426) 在 JitReflector.parameters (platform-browser-dynamic.js:48) 在 CompileMetadataResolver._getDependenciesMetadata (compiler.js:10202) 在 CompileMetadataResolver._getTypeMetadata (compiler.js:10155) 在 CompileMetadataResolver.getNonNormalizedDirectiveMetadata (compiler.js:9784) 在 CompileMetadataResolver.loadDirectiveMetadata (compiler.js:9647) 在 _filterJitIdentifiers.forEach (compiler.js:23148) 在 Array.forEach () 在 _filterJitIdentifiers.forEach (compiler.js:23147)
我的 package.json 看起来像这样：
{
"name": "frontend",
"version": "0.0.0",
"license": "MIT",
"scripts": {
"ng": "ng",
"start": "ng serve",
"build": "ng build",
"test": "ng test",
"lint": "ng lint",
"e2e": "ng e2e"
},
"private": true,
"dependencies": {
"@angular/animations": "^7.0.1",
"@angular/cdk": "^7.0.2",
"@angular/common": "^7.0.1",
"@angular/compiler": "^7.0.1",
"@angular/core": "^7.0.1",
"@angular/flex-layout": "^7.0.0-beta.19",
"@angular/forms": "^7.0.1",
"@angular/http": "^7.0.1",
"@angular/material": "^7.0.2",
"@angular/platform-browser": "^7.0.1",
"@angular/platform-browser-dynamic": "^7.0.1",
"@angular/router": "^7.0.1",
"@auth0/angular-jwt": "^2.0.0",
"@ngx-translate/core": "^11.0.0",
"@ngx-translate/http-loader": "^4.0.0",
"angular2-draggable": "^2.1.6",
"core-js": "^2.5.7",
"enhanced-resolve": "^4.1.0",
"moment": "^2.22.2",
"ng-drag-drop": "^5.0.0",
"ngx-quill": "^4.0.0",
"ngx-quill-editor": "^2.2.2",
"rxjs": "^6.3.3",
"rxjs-compat": "^6.0.0-rc.0",
"zone.js": "^0.8.26"
},
"devDependencies": {
"@angular-devkit/build-angular": "~0.10.0",
"@angular/cli": "^7.0.3",
"@angular/compiler-cli": "^7.0.1",
"@angular/language-service": "^7.0.1",
"@types/jasmine": "~2.8.9",
"@types/jasminewd2": "~2.0.5",
"@types/node": "~10.12.1",
"codelyzer": "^4.5.0",
"jasmine-core": "~3.3.0",
"jasmine-spec-reporter": "~4.2.1",
"karma": "~3.1.1",
"karma-chrome-launcher": "~2.2.0",
"karma-cli": "~1.0.1",
"karma-coverage-istanbul-reporter": "^2.0.4",
"karma-jasmine": "~1.1.2",
"karma-jasmine-html-reporter": "^1.4.0",
"node-sass": "^4.9.4",
"protractor": "~5.4.1",
"ts-node": "~7.0.1",
"tslint": "~5.11.0",
"typescript": "~3.1.3"
}
}
tsconfig:
{
"compileOnSave": false,
"compilerOptions": {
"baseUrl": "./src",
"paths": {
"@app/*": [
"./app/*"
]
},
"outDir": "./dist/out-tsc",
"sourceMap": true,
"declaration": false,
"moduleResolution": "node",
"emitDecoratorMetadata": true,
"experimentalDecorators": true,
"target": "es2018",
"typeRoots": [
"./node_modules/@types"
],
"lib": [
"es2018",
"dom"
],
"module": "es2015"
}
}
angular.json:
{
"$schema": "./node_modules/@angular/cli/lib/config/schema.json",
"version": 1,
"newProjectRoot": "projects",
"projects": {
"frontend": {
"root": "",
"sourceRoot": "src",
"projectType": "application",
"architect": {
"build": {
"builder": "@angular-devkit/build-angular:browser",
"options": {
"outputPath": "dist",
"index": "src/index.html",
"main": "src/main.ts",
"tsConfig": "src/tsconfig.app.json",
"polyfills": "src/polyfills.ts",
"assets": [
"src/assets",
"src/favicon.ico"
],
"styles": [
"src/styles.scss",
"node_modules/quill/dist/quill.core.css",
"node_modules/quill/dist/quill.bubble.css",
"node_modules/ng-drag-drop/style.css"
],
"scripts": []
},
"configurations": {
"production": {
"optimization": true,
"outputHashing": "all",
"sourceMap": false,
"extractCss": true,
"namedChunks": false,
"aot": true,
"extractLicenses": true,
"vendorChunk": false,
"buildOptimizer": true,
"fileReplacements": [
{
"replace": "src/environments/environment.ts",
"with": "src/environments/environment.prod.ts"
}
]
}
}
},
"serve": {
"builder": "@angular-devkit/build-angular:dev-server",
"options": {
"browserTarget": "frontend:build"
},
"configurations": {
"production": {
"browserTarget": "frontend:build:production"
}
}
},
"extract-i18n": {
"builder": "@angular-devkit/build-angular:extract-i18n",
"options": {
"browserTarget": "frontend:build"
}
},
"test": {
"builder": "@angular-devkit/build-angular:karma",
"options": {
"main": "src/test.ts",
"karmaConfig": "./karma.conf.js",
"polyfills": "src/polyfills.ts",
"tsConfig": "src/tsconfig.spec.json",
"scripts": [],
"styles": [
"src/styles.scss",
"node_modules/quill/dist/quill.core.css",
"node_modules/quill/dist/quill.bubble.css",
"node_modules/ng2-drag-drop/style.css"
],
"assets": [
"src/assets",
"src/favicon.ico"
]
}
},
"lint": {
"builder": "@angular-devkit/build-angular:tslint",
"options": {
"tsConfig": [
"src/tsconfig.app.json",
"src/tsconfig.spec.json"
],
"exclude": [
"**/node_modules/**"
]
}
}
}
},
"frontend-e2e": {
"root": "e2e",
"sourceRoot": "e2e",
"projectType": "application",
"architect": {
"e2e": {
"builder": "@angular-devkit/build-angular:protractor",
"options": {
"protractorConfig": "./protractor.conf.js",
"devServerTarget": "frontend:serve"
}
},
"lint": {
"builder": "@angular-devkit/build-angular:tslint",
"options": {
"tsConfig": [
"e2e/tsconfig.e2e.json"
],
"exclude": [
"**/node_modules/**"
]
}
}
}
}
},
"defaultProject": "frontend",
"schematics": {
"@schematics/angular:component": {
"prefix": "app",
"styleext": "scss"
},
"@schematics/angular:directive": {
"prefix": "app"
}
}
}
我假设存在一些依赖错误（当前，当我运行“npm audit fix”时，NPM 显示 auth0/angular-jwt 库需要 Angular 6，已经存在 GitHub 问题，但即使我删除该库是临时的，错误仍然存在）。
编辑：当我运行ng serve --open --aot 时，它可以工作。但为什么呢？
【问题讨论】：
-
嘿！你解决了吗？
-
很遗憾没有。即使在更新到 Angular 7.0.2 之后也没有。如前所述，使用--aot，它可以工作，但是在更改后重新编译时需要很长时间。
-
我在 7.0.2 上，当不使用 es5 作为目标时会发生这种情况。呸
-
Es5 基本上可以正常工作。
-
哈，你们是对的！带有目标 es5 的 7.0.2 有效。好的，非常感谢！
标签： javascript node.js angular typescript npm