Angular JS : version conflict

Question

User791773689 posted

Hello everybody,

I have left my Angular project for a while (the Angular Tour, done with the tutorial), and have got to refresh my ideas about it.

I went to the directory of the application, and typed

ng serve --open

and got this answer :

Global Angular CLI version greater than local version

then I ran this

npm install --save-dev @angular/cli@latest

then was invited to try another version to solve vulnerabilities,

and ng serve --open again, and I was insulted in answer :

Could not find the implementation for builder @angular-devkit/build-angular:dev-server
Error: Could not find the implementation for builder @angular-devkit/build-angular:dev-server
    at WorkspaceNodeModulesArchitectHost.resolveBuilder (D:\Projets Visual Studio\Web\TestAngular006\TestAngular006\angular-tour-of-heroes\node_modules\@angular\cli\node_modules\@angular-devkit\architect\node\node-modules-architect-host.js:49:19)
    at ServeCommand.initialize (D:\Projets Visual Studio\Web\TestAngular006\TestAngular006\angular-tour-of-heroes\node_modules\@angular\cli\models\architect-command.js:72:63)
    at process._tickCallback (internal/process/next_tick.js:68:7)
    at Function.Module.runMain (internal/modules/cjs/loader.js:745:11)
    at startup (internal/bootstrap/node.js:283:19)
    at bootstrapNodeJSCore (internal/bootstrap/node.js:743:3)

Oh, so I type ng --version, and get this :

Angular CLI: 8.0.2
Node: 10.15.0
OS: win32 x64
Angular: 7.2.4
... animations, common, compiler, core, forms, language-service
... platform-browser, platform-browser-dynamic, router

Package                           Version
-----------------------------------------------------------
@angular-devkit/architect         0.12.4
@angular-devkit/build-angular     0.12.4
@angular-devkit/build-optimizer   0.12.4
@angular-devkit/build-webpack     0.12.4
@angular-devkit/core              7.2.4
@angular-devkit/schematics        8.0.2Is 
@angular/cli                      8.0.2
@angular/compiler-cli             8.0.0
@ngtools/webpack                  7.2.4
@schematics/angular               8.0.2
@schematics/update                0.800.2
rxjs                              6.3.3
typescript                        3.2.4
webpack                           4.28.4

Is anyone able to guide me to make this project work ?

Answer 1

User-1764593085 posted

Hi Gluups,

Your Angular version is 7.2.4 and your Angular CLI is 8.0.2, but @angular/cli version 8 will only work with Angular version 8.

You could delete global angular-cli and reinstall it with specific version:

npm uninstall -g @angular/cli
npm cache clean
npm install -g @angular/cli@7.3.6 // or whatever version you need

Or update to version 8 by running the update command via 

ng update @angular/cli @angular/core

Refer to 

https://github.com/angular/angular-cli/issues/14546

https://update.angular.io/#7.2:8.0

Since it is related to angular configuration instead of .net core, you could ask it on its github(https://github.com/angular/angular-cli/issues) for more accurate response.

Best Regards,

Xing