我在我的应用程序中使用Angular 7，在开发服务器上运行Angular 7时出现错误。
我确实做了 ng服务
但我在下面遇到错误
D:\suman\ftoss\New TFS\FtossAngularWeb\Pre11WebV1>ng lint -fix Your
global Angular CLI version (7.3.9) is greater than your local version
(7.1.4). The local Angular CLI version is used.
To disable this warning use "ng config -g cli.warnings.versionMismatch
false".
Schema validation failed with the following errors:
Data path ".builders['app-shell']" should have required property 'class'.
Error: Schema validation failed with the following errors:
Data path ".builders['app-shell']" should have required property 'class'.
at MergeMapSubscriber.project (D:\suman\ftoss\New TFS\FtossAngularWeb\Pre11WebV1\node_modules\@angular-devkit\core\src\workspace\workspace.js:215:42)
at MergeMapSubscriber._tryNext (D:\suman\ftoss\New TFS\FtossAngularWeb\Pre11WebV1\node_modules\rxjs\internal\operators\mergeMap.js:69:27)
at MergeMapSubscriber._next (D:\suman\ftoss\New TFS\FtossAngularWeb\Pre11WebV1\node_modules\rxjs\internal\operators\mergeMap.js:59:18)
at MergeMapSubscriber.Subscriber.next (D:\suman\ftoss\New TFS\FtossAngularWeb\Pre11WebV1\node_modules\rxjs\internal\Subscriber.js:67:18)
at MergeMapSubscriber.notifyNext (D:\suman\ftoss\New TFS\FtossAngularWeb\Pre11WebV1\node_modules\rxjs\internal\operators\mergeMap.js:92:26)
at InnerSubscriber._next (D:\suman\ftoss\New TFS\FtossAngularWeb\Pre11WebV1\node_modules\rxjs\internal\InnerSubscriber.js:28:21)
at InnerSubscriber.Subscriber.next (D:\suman\ftoss\New TFS\FtossAngularWeb\Pre11WebV1\node_modules\rxjs\internal\Subscriber.js:67:18)
at MapSubscriber._next (D:\suman\ftoss\New TFS\FtossAngularWeb\Pre11WebV1\node_modules\rxjs\internal\operators\map.js:55:26)
at MapSubscriber.Subscriber.next (D:\suman\ftoss\New TFS\FtossAngularWeb\Pre11WebV1\node_modules\rxjs\internal\Subscriber.js:67:18)
at SwitchMapSubscriber.notifyNext (D:\suman\ftoss\New TFS\FtossAngularWeb\Pre11WebV1\node_modules\rxjs\internal\operators\switchMap.js:86:26)
我的Angular应用程序的详细信息
Angular.json->
"$schema": "./node_modules/@angular/cli/lib/config/schema.json",
"version": 1,
"newProjectRoot": "projects",
"projects": {
"ftoss": {
"root": "",
"sourceRoot": "src",
"projectType": "application",
"prefix": "app",
"schematics": {
"@schematics/angular:component": {
"styleext": "scss"
}
},
"architect": {
"build": {
"builder": "@angular-devkit/build-angular:browser",
"options": {
"outputPath": "dist/ftoss",
"index": "src/index.html",
"main": "src/main.ts",
"polyfills": "src/polyfills.ts",
"tsConfig": "src/tsconfig.app.json",
"assets": [
"src/favicon.ico",
"src/assets",
"src/firebase-messaging-sw.js",
"src/manifest.json"
],
"styles": [
"node_modules/font-awesome/scss/font-awesome.scss",
"node_modules/angular-bootstrap-md/scss/bootstrap/bootstrap.scss",
"node_modules/angular-bootstrap-md/scss/mdb-free.scss",
"src/fonts/styles.css",
"src/fonts/stylesheet.css",
"src/styles.scss"
],
"scripts": [
"node_modules/chart.js/dist/Chart.js",
"node_modules/hammerjs/hammer.min.js"
]
},
"configurations": {
"production": {
"fileReplacements": [
{
"replace": "src/environments/environment.ts",
"with": "src/environments/environment.prod.ts"
}
],
"optimization": true,
"outputHashing": "all",
"sourceMap": false,
"extractCss": true,
"namedChunks": false,
"aot": true,
"extractLicenses": true,
"vendorChunk": false,
"buildOptimizer": true,
"budgets": [
{
"type": "initial",
"maximumWarning": "4mb",
"maximumError": "5mb"
}
]
}
}
},
"serve": {
"builder": "@angular-devkit/build-angularev-server",
"options": {
"browserTarget": "ftoss:build"
},
"configurations": {
"production": {
"browserTarget": "ftoss:buildroduction"
}
}
},
"extract-i18n": {
"builder": "@angular-devkit/build-angular:extract-i18n",
"options": {
"browserTarget": "ftoss:build"
}
},
"test": {
"builder": "@angular-devkit/build-angular:karma",
"options": {
"main": "src/test.ts",
"polyfills": "src/polyfills.ts",
"tsConfig": "src/tsconfig.spec.json",
"karmaConfig": "src/karma.conf.js",
"styles": [
"src/styles.scss"
],
"scripts": ["/src/firebase-messaging-sw.js"],
"assets": [
"src/favicon.ico",
"src/assets",
"src/firebase-messaging-sw.js",
"src/manifest.json"
]
}
},
"lint": {
"builder": "@angular-devkit/build-angular:tslint",
"options": {
"tsConfig": [
"src/tsconfig.app.json",
"src/tsconfig.spec.json"
],
"exclude": [
"**/node_modules/**"
]
}
}
}
},
"ftoss-e2e": {
"root": "e2e/",
"projectType": "application",
"prefix": "",
"architect": {
"e2e": {
"builder": "@angular-devkit/build-angularrotractor",
"options": {
"protractorConfig": "e2e/protractor.conf.js",
"devServerTarget": "ftosserve"
},
"configurations": {
"production": {
"devServerTarget": "ftosserveroduction"
}
}
},
"lint": {
"builder": "@angular-devkit/build-angular:tslint",
"options": {
"tsConfig": "e2e/tsconfig.e2e.json",
"exclude": [
"**/node_modules/**"
]
}
}
}
}
},
"defaultProject": "ftoss"
}
我尝试过的->
答案 0 :(得分：7)
这是由于npm audit fix安装了@angular-devkit/build-angular程序包的较新版本，尤其是0.800.x版本，该版本从0.13.9版本开始已发生重大更改。因此，与Angular 7一起使用时，运行此软件包的0.800版本会破坏angular-cli。
要解决此问题，请使用以下命令安装较旧的稳定软件包版本：
npm install --save-dev @angular-devkit/build-angular@0.13.9
答案 1 :(得分：1)
好的，我做了一些测试，就我而言（请查看问题中的评论），看来npm audit fix打破了依赖关系，并导致ng serve产生了该错误。
似乎与依赖性有关，我希望他们能尽快解决它...
答案 2 :(得分：1)
即使我遇到了同样的问题。正如@Ardzii所建议的那样，问题出在'npm audit fix'命令上。我克隆了一个新的存储库，并再次安装了节点软件包，而没有运行npm audit命令，现在它可以正常工作。
答案 3 :(得分：0)
我认为它与rxjs不兼容。尝试运行
npm install rxjs-compat