问题
After migrating application from angular 5 to 6, on running ng serve the following errors pop up.
Schema validation failed with the following errors: Data path "" should NOT have additional properties(project). Error: Schema validation failed with the following errors: Data path "" should NOT have additional properties(project). at MergeMapSubscriber._registry.compile.pipe.operators_1.concatMap.validatorResult [as project] (.../TemplateApp/me-cmf-web-template-angular/node_modules/@angular-devkit/core/src/workspace/workspace.js:210:42) at MergeMapSubscriber._tryNext (/.../me-cmf-web-template-angular/node_modules/@angular-devkit/core/node_modules/rxjs/internal/operators/mergeMap.js:65:27) at MergeMapSubscriber._next (.../me-cmf-web-template-angular/node_modules/@angular-devkit/core/node_modules/rxjs/internal/operators/mergeMap.js:55:18) at MergeMapSubscriber.Subscriber.next (/home/training/Attinad_Projects/TemplateApp/me-cmf-web-template-angular/node_modules/@angular-devkit/core/node_modules/rxjs/internal/Subscriber.js:64:18) at MergeMapSubscriber.notifyNext (.../TemplateApp/me-cmf-web-template-angular/node_modules/@angular-devkit/core/node_modules/rxjs/internal/operators/mergeMap.js:84:26) at InnerSubscriber._next (.../me-cmf-web-template-angular/node_modules/@angular-devkit/core/node_modules/rxjs/internal/InnerSubscriber.js:25:21) at InnerSubscriber.Subscriber.next (/.../me-cmf-web-template-angular/node_modules/@angular-devkit/core/node_modules/rxjs/internal/Subscriber.js:64:18) at MapSubscriber._next (.../me-cmf-web-template-angular/node_modules/@angular-devkit/core/node_modules/rxjs/internal/operators/map.js:52:26) at MapSubscriber.Subscriber.next (/.../me-cmf-web-template-angular/node_modules/@angular-devkit/core/node_modules/rxjs/internal/Subscriber.js:64:18) at SwitchMapSubscriber.notifyNext (.../me-cmf-web-template-angular/node_modules/@angular-devkit/core/node_modules/rxjs/internal/operators/switchMap.js:77:26)
I assume that the error is with .angular.json file which I re-named from .angular-cli.json .
My .angular.json file is as follows :
{
"$schema": "./node_modules/@angular/cli/lib/config/schema.json",
"project": {
"name": "mediaweb"
},
"apps": [{
"root": "src",
"outDir": "dist/browser",
"assets": [
"assets",
"favicon.ico"
],
"index": "index.html",
"main": "main.ts",
"polyfills": "polyfills.ts",
"test": "test.ts",
"tsconfig": "tsconfig.app.json",
"testTsconfig": "tsconfig.spec.json",
"prefix": "app",
"styles": [
"styles.scss",
"../node_modules/owl.carousel/dist/assets/owl.carousel.css",
"../node_modules/owl.carousel/dist/assets/owl.theme.default.css",
"../node_modules/video.js/dist/video-js.css"
],
"scripts": [
"../node_modules/jquery/dist/jquery.js",
"../node_modules/owl.carousel/dist/owl.carousel.js",
"../node_modules/video.js/dist/ie8/videojs-ie8.js",
"../node_modules/video.js/dist/video.js"
],
"environmentSource": "environments/environment.ts",
"environments": {
"dev": "environments/environment.dev.ts",
"prod": "environments/environment.prod.ts"
}
},
{
"platform": "server",
"root": "src",
"outDir": "dist/server",
"assets": [
"assets",
"favicon.ico"
],
"index": "index.html",
"main": "main.server.ts",
"test": "test.ts",
"tsconfig": "tsconfig.server.json",
"testTsconfig": "tsconfig.spec.json",
"prefix": "app",
"styles": [
"styles.scss"
],
"scripts": [],
"environmentSource": "environments/environment.ts",
"environments": {
"dev": "environments/environment.dev.ts",
"prod": "environments/environment.prod.ts"
}
}
],
"e2e": {
"protractor": {
"config": "./protractor.conf.js"
}
},
"lint": [{
"project": "src/tsconfig.app.json",
"exclude": ["**/node_modules/**", "**/UI/**"]
},
{
"project": "src/tsconfig.spec.json",
"exclude": "**/node_modules/**"
},
{
"project": "e2e/tsconfig.e2e.json",
"exclude": "**/node_modules/**"
}
],
"test": {
"karma": {
"config": "./karma.conf.js"
}
},
"defaults": {
"styleExt": "scss",
"component": {}
}
}
Should I re-structure the json file, if so how?.
Any help would be great.
回答1:
The issue is generally because of a version mismatch in your package.json file.
In my Angular 7 app, I have changed "@angular-devkit/build-angular": "^0.800.2" to "@angular-devkit/build-angular": "~0.7.0".
Then I ran the command npm install after deleting node_modules.
Aside: Use ^ carefully. Your working code may not work in the future if there is a major change in the package used.
回答2:
First:
npm uninstall @angular-devkit/build-angular
Next:
npm install @angular-devkit/build-angular@0.12.4
回答3:
Change package.json from:
"@angular-devkit/build-angular": "^0.13.5",
to:
"@angular-devkit/build-angular": "^0.12.1",
回答4:
Since I fixed the issue I thought it would be nice to post it here.
I changed my file name .angular.json to angular.json and replaced some properties from the question in it.
{
"$schema": "./node_modules/@angular-devkit/core/src/workspace/workspace-schema.json",
"version": 1,
"newProjectRoot": "projects",
"projects": {
"template-appv6": {
"root": "",
"projectType": "application",
"architect": {
"build": {
"builder": "@angular-devkit/build-angular:browser",
"options": {
"outputPath": "dist/browser",
"index": "src/index.html",
"main": "src/main.ts",
"tsConfig": "src/tsconfig.app.json",
"polyfills": "src/polyfills.ts",
"assets": [
{
"glob": "**/*",
"input": "src/assets",
"output": "/assets"
},
{
"glob": "favicon.ico",
"input": "src",
"output": "/"
}
],
"styles": [
"src/styles.scss"
],
"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": "template-appv6:build"
},
"configurations": {
"production": {
"browserTarget": "template-appv6:build:production"
}
}
},
"extract-i18n": {
"builder": "@angular-devkit/build-angular:extract-i18n",
"options": {
"browserTarget": "template-appv6: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.css"
],
"assets": [
{
"glob": "**/*",
"input": "src/assets",
"output": "/assets"
},
{
"glob": "favicon.ico",
"input": "src",
"output": "/"
}
]
}
},
"lint": {
"builder": "@angular-devkit/build-angular:tslint",
"options": {
"tsConfig": [
"src/tsconfig.app.json",
"src/tsconfig.spec.json"
],
"exclude": [
"**/node_modules/**"
]
}
},
"server": {
"builder": "@angular-devkit/build-angular:server",
"options": {
"outputPath": "dist/server",
"main": "src/main.server.ts",
"tsConfig": "src/tsconfig.server.json"
}
}
}
},
"template-appv6-e2e": {
"root": "",
"projectType": "application",
"cli": {},
"schematics": {},
"architect": {
"e2e": {
"builder": "@angular-devkit/build-angular:protractor",
"options": {
"protractorConfig": "./protractor.conf.js",
"devServerTarget": "template-appv6:serve"
}
},
"lint": {
"builder": "@angular-devkit/build-angular:tslint",
"options": {
"tsConfig": [
"e2e/tsconfig.e2e.json"
],
"exclude": [
"**/node_modules/**"
]
}
}
}
}
},
"cli": {},
"schematics": {
"@schematics/angular:component": {
"prefix": "app",
"styleext": "css"
},
"@schematics/angular:directive": {
"prefix": "app"
}
}
}
I changed the file by replacing the angular.json file with properties in the angular official docs.
The official Angular Update Guide provides a step by step guide on how to update versions.
回答5:
my app is on angular 7.2.3
remove "es5BrowserSupport": true from angular.json. and npm start now works.
回答6:
I think it's with RxJS's incompatibility. You should install rxjs-compat to fix this.
npm install rxjs-compat
Also, the name of the file is angular.json and not .angular.json
回答7:
the format of angular.json needs to be as per Angular6... You can check my angular.json below or create a new project in Angular6 and then check the format of the 'project' head
{
"$schema": "./node_modules/@angular/cli/lib/config/schema.json",
"version": 1,
"newProjectRoot": "projects",
"projects": {
"homePage6": {
"root": "",
"sourceRoot": "src",
"projectType": "application",
"prefix": "app",
"schematics": {
"@schematics/angular:component": {
"styleext": "scss"
}
},
"architect": {
"build": {
"builder": "@angular-devkit/build-angular:browser",
"options": {
"outputPath": "dist/homePage6",
"index": "src/index.html",
"main": "src/main.ts",
"polyfills": "src/polyfills.ts",
"tsConfig": "src/tsconfig.app.json",
"assets": [
"src/favicon.ico",
"src/assets",
"src/manifest.json"
],
"styles": [
"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,
"aot": true,
"extractLicenses": true,
"vendorChunk": false,
"buildOptimizer": true,
"serviceWorker": true
}
}
},
"serve": {
"builder": "@angular-devkit/build-angular:dev-server",
"options": {
"browserTarget": "homePage6:build"
},
"configurations": {
"production": {
"browserTarget": "homePage6:build:production"
}
}
},
"extract-i18n": {
"builder": "@angular-devkit/build-angular:extract-i18n",
"options": {
"browserTarget": "homePage6: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": [
"styles.scss"
],
"scripts": [],
"assets": [
"src/favicon.ico",
"src/assets",
"src/manifest.json"
]
}
},
"lint": {
"builder": "@angular-devkit/build-angular:tslint",
"options": {
"tsConfig": [
"src/tsconfig.app.json",
"src/tsconfig.spec.json"
],
"exclude": [
"**/node_modules/**"
]
}
}
}
},
"homePage6-e2e": {
"root": "e2e/",
"projectType": "application",
"architect": {
"e2e": {
"builder": "@angular-devkit/build-angular:protractor",
"options": {
"protractorConfig": "e2e/protractor.conf.js",
"devServerTarget": "homePage6:serve"
}
},
"lint": {
"builder": "@angular-devkit/build-angular:tslint",
"options": {
"tsConfig": "e2e/tsconfig.e2e.json",
"exclude": [
"**/node_modules/**"
]
}
}
}
}
},
"defaultProject": "homePage6"
}I ran into similar (not identical, but also in angular.json) issue:
Schema validation failed with the following errors: Data path "['server']" should NOT have additional properties(scripts). Error: Schema validation failed with the following errors: Data path "['server']" should NOT have additional properties(scripts). at MergeMapSubscriber._registry.compile.pipe.operators_1.concatMap.validatorResult [as project] (D:\Angular7\uHome\node_modules@angular-devkit\core\src\workspace\workspace.js:215:42) at MergeMapSubscriber._tryNext (D:\Angular7\uHome\node_modules\rxjs\internal\operators\mergeMap.js:69:27) at MergeMapSubscriber._next (D:\Angular7\uHome\node_modules\rxjs\internal\operators\mergeMap.js:59:18) at MergeMapSubscriber.Subscriber.next (D:\Angular7\uHome\node_modules\rxjs\internal\Subscriber.js:67:18) at MergeMapSubscriber.notifyNext (D:\Angular7\uHome\node_modules\rxjs\internal\operators\mergeMap.js:92:26) at InnerSubscriber._next (D:\Angular7\uHome\node_modules\rxjs\internal\InnerSubscriber.js:28:21) at InnerSubscriber.Subscriber.next (D:\Angular7\uHome\node_modules\rxjs\internal\Subscriber.js:67:18) at MapSubscriber._next (D:\Angular7\uHome\node_modules\rxjs\internal\operators\map.js:55:26) at MapSubscriber.Subscriber.next (D:\Angular7\uHome\node_modules\rxjs\internal\Subscriber.js:67:18) at SwitchMapSubscriber.notifyNext (D:\Angular7\uHome\node_modules\rxjs\internal\operators\switchMap.js:86:26)
had to remove the property scripts from my angular.json... sharing this information to help someone in the future.
回答8:
Updating npm and angular fixed mine:
Assuming you use npm
npm update
then run:
ng update
NB: You might be prompted to update individual dependencies. In my case, I was prompted to run:
ng update @angular/cli and ng update @angular/core.
来源：https://stackoverflow.com/questions/52398449/error-schema-validation-failed-with-the-following-errors-data-path-should-n