更新到最新发布的版本 (8.2.0).

Update to the latest released versions (8.2.0).

我的解决方案是升级到:

My solution was to upgrade to:

"@angular/animations": "~8.2.0",
"@angular/common": "~8.2.0",
"@angular/compiler": "~8.2.0",
"@angular/core": "~8.2.0",
"@angular/forms": "~8.2.0",
"@angular/platform-browser": "~8.2.0",
"@angular/platform-browser-dynamic": "~8.2.0",
"@angular/router": "~8.2.0",
"@angular/cdk": "~8.2.0",
"@angular/cli": "~8.2.0",
"@angular/language-service": "~8.2.0",
"@angular/upgrade": "~8.2.0"