我键入命令ng update @angular/cli @angular/core，然后删除了node_modules文件，然后npm install
键入时出现错误ng serve
An unhandled exception occurred: Invalid configuration object. Webpack has been initialised using a configuration object that does not match the API schema.
- configuration.output has an unknown property 'futureEmitAssets'. These properties are valid:
object { auxiliaryComment?, chunkCallbackName?, chunkFilename?, chunkLoadTimeout?, crossOriginLoading?, devtoolFallbackModuleFilenameTemplate?, devtoolLineToLine?, devtoolModuleFilenameTemplate?, devtoolNamespace?, filename?, globalObject?, hashDigest?, hashDigestLength?, hashFunction?, hashSalt?, hotUpdateChunkFilename?, hotUpdateFunction?, hotUpdateMainFilename?, jsonpFunction?, jsonpScriptType?, library?, libraryExport?, libraryTarget?, path?, pathinfo?, publicPath?, sourceMapFilename?, sourcePrefix?, strictModuleExceptionHandling?, umdNamedDefine?, webassemblyModuleFilename? }
-> Options affecting the output of the compilation. `output` options tell webpack how to write the compiled files to disk.
See "/tmp/ng-bHnTFp/angular-errors.log" for further details.
我的包.json
{
"name": "...",
"version": "0.0.0",
"license": "MIT",
"scripts": {
"ng": "ng",
"start": "ng serve",
"build": "ng build --prod",
"test": "ng test",
"lint": "ng lint",
"e2e": "ng e2e"
},
"private": true,
"dependencies": {
"@amcharts/amcharts4": "4.4.2",
"@amcharts/amcharts4-geodata": "^4.0.21",
"@angular/animations": "^8.2.14",
"@angular/cdk": "^6.4.7",
"@angular/common": "^8.2.14",
"@angular/compiler": "^8.2.14",
"@angular/core": "^8.2.14",
"@angular/flex-layout": "^6.0.0-beta.18",
"@angular/forms": "^8.2.14",
"@angular/material": "^6.4.7",
"@angular/platform-browser": "^8.2.14",
"@angular/platform-browser-dynamic": "^8.2.14",
"@angular/router": "^8.2.14",
"@types/paho-mqtt": "^1.0.4",
"@types/zen-observable": "^0.5.4",
"angular5-social-login": "^1.0.9",
"aws-amplify": "^1.1.19",
"aws-sdk": "^2.401.0",
"core-js": "^2.6.4",
"d3": "^5.9.1",
"expo": "^31.0.6",
"hammerjs": "^2.0.8",
"mat-table-exporter": "^1.2.5",
"moment": "^2.24.0",
"ngx-facebook": "^2.4.0",
"ngx-tour-core": "^4.0.1",
"ngx-tour-md-menu": "^4.0.1",
"rxjs": "^6.5.4",
"rxjs-compat": "^6.4.0",
"tslib": "^1.10.0",
"zone.js": "~0.9.1"
},
"devDependencies": {
"@angular-devkit/build-angular": "~0.803.22",
"@angular/cli": "^8.3.22",
"@angular/compiler-cli": "^8.2.14",
"@angular/language-service": "^8.2.14",
"@types/jasmine": "^2.8.16",
"@types/jasminewd2": "^2.0.6",
"@types/node": "^10.12.26",
"codelyzer": "^5.0.1",
"jasmine-core": "~2.8.0",
"jasmine-spec-reporter": "~4.2.1",
"karma": "^2.0.5",
"karma-chrome-launcher": "~2.2.0",
"karma-coverage-istanbul-reporter": "^1.4.3",
"karma-jasmine": "^1.1.2",
"karma-jasmine-html-reporter": "^0.2.2",
"node-sass": "^4.13.0",
"protractor": "^5.4.2",
"ts-node": "~4.1.0",
"tslint": "~5.9.1",
"typescript": "~3.5.3",
"webpack": "4.28.4"
}
}
此错误主要是由于旧的依赖项而发生的，如果根本没有升级，那么可以通过删除node_modules文件夹和package-lock.json文件来手动删除它
之后，您可以清理缓存(如有必要(，然后
npm 缓存清理 --强制 npm 安装
这在升级到 Angular 并使用官方指南时对我有用