Upgrade angular CLI to 8

问题

I have encountered the following errors when updating the version of Angular Cli to 8.

Could not find module "@angular-devkit/build-angular" from "C:\\Users\\AGT\\Desktop\\central8\\client".
Error: Could not find module "@angular-devkit/build-angular" from "C:\\Users\\AGT\\Desktop\\central8\\client".
    at Object.resolve (C:\Users\AGT\AppData\Roaming\npm\node_modules\@angular\cli\node_modules\@angular-devkit\core\node\resolve.js:151:11)
    at WorkspaceNodeModulesArchitectHost.resolveBuilder (C:\Users\AGT\AppData\Roaming\npm\node_modules\@angular\cli\node_modules\@angular-devkit\architect\node\node-modules-architect-host.js:31:40)
    at ServeCommand.initialize (C:\Users\AGT\AppData\Roaming\npm\node_modules\@angular\cli\models\architect-command.js:135:55)
    at process._tickCallback (internal/process/next_tick.js:68:7)
    at Function.Module.runMain (internal/modules/cjs/loader.js:757:11)
    at startup (internal/bootstrap/node.js:283:19)
    at bootstrapNodeJSCore (internal/bootstrap/node.js:622:3)

enter image description here

回答1:

If you are upgrading to Angular 8, you should ensure your Angular packages are safely updated to the current stable version by running the following command

ng update

Otherwise, you can try to manually update the @angular/cli and core framework package manually.

ng update @angular/cli @angular/core

Alternatively, you can directly use npm to install/update it.

npm install --save-dev @angular-devkit/build-angular

The step-by-step Angular upgrade guide can be found here.

回答2:

npm uninstall -g @angular/cli
npm cache verify
npm install -g @angular/cli@latest

Then in your Local project package:

rm -rf node_modules dist 
npm install --save-dev @angular/cli@latest
npm i 
ng update --all --force
npm install --save-dev @angular-devkit/build-angular

Your app has now been upgrade to the latest version

来源：https://stackoverflow.com/questions/56373422/upgrade-angular-cli-to-8

标签

angular

command-line-interface