node_modules/@angular/core/core"' 没有导出成员 '??FactoryDe​​claration'

Question

我们面临标题中提到的问题。当我们进行 ng build 时，它会向我们显示附加的 SS 错误。我们已经尝试了 github/stackoverflow 社区中已经分享的所有可能的方法。但我们仍然面临同样的错误。伙计们，请帮助我们解决这个问题。我们陷入了部署过程。这是我的 package.json

"dependencies": {
"@angular/animations": "~10.1.6",
"@angular/cdk": "^10.2.5",
"@angular/common": "~10.1.6",
"@angular/compiler": "~10.1.6",
"@angular/core": "~10.1.6",
"@angular/forms": "~10.1.6",
"@angular/material": "^10.2.5",
"@angular/platform-browser": "~10.1.6",
"@angular/platform-browser-dynamic": "~10.1.6",
"@angular/router": "~10.1.6",
"@angular/service-worker": "~10.1.6",
"@iplab/ngx-file-upload": "^3.1.1",
"angular-datatables": "10.0.0",
"angular-pipes": "^10.0.0",
"bootstrap": "^4.5.3",
"braintree-web": "^3.71.1",
"datatables.net": "^1.10.23",
"datatables.net-bs4": "^1.10.23",
"datatables.net-buttons": "^1.7.1",
"datatables.net-buttons-dt": "^1.7.1",
"jquery": "^3.5.1",
"jszip": "^3.6.0",
"laravel-echo": "^1.10.0",
"moment": "^2.29.1",
"ng-connection-service": "^1.0.4",
"ngx-bootstrap": "^6.1.0",
"ngx-chips": "^2.2.2",
"ngx-drag-scroll": "^9.0.0-beta.4",
"ngx-mask": "^11.1.4",
"ngx-pagination": "^5.0.0",
"ngx-pipes": "^2.7.5",
"ngx-select-dropdown": "1.5.0",
"popper.js": "^1.16.1",
"pusher-js": "^7.0.2",
"rxjs": "~6.6.0",
"sweetalert2": "^10.15.7",
"tslib": "^2.0.0",
"uuid": "^8.3.2",
"zone.js": "~0.10.2"

},

Angular CLI: 10.1.7
Node: 14.14.0
OS: linux x64

Answer 1

通过将稳定版本添加 ng2-material-dropdown到我的 package.json 中，我的问题得到解决，如下所示：

添加此后再次尝试npm install，它工作正常。

Answer 2

如果您看到错误路径，则它指向节点模块。这似乎是唯一的问题node_modules。您需要删除该node_modules文件夹并重新安装。