尝试安装@ schematics / update @ 0.803.2时出错

Question

当我尝试npm i @schematics/update@0.803.2时，我得到了：

npm ERR! notarget No matching version found for @schematics/update@0.803.2
npm ERR! notarget In most cases you or one of your dependencies are requesting
npm ERR! notarget a package version that doesn't exist.

我尝试删除package-log.json并删除了node_modules。我需要安装此软件包，因为当它调用命令npm install — save-dev @angular/cli@latest时，我收到一条消息，指出缺少此依赖性。我的主要目标是将Angular 5.2更新为Angular 8。