Getting error on ng serve: ERROR in Cannot read property 'listLazyRoutes' of undefined

Question

When running ng serve in command-line for an angular-cli generated project, I am getting error below:

 ERROR in Cannot read property \'listLazy         


        

Answer 1

I was able to fix the issue by upgrading the angular-cli generated project to angular-cli: 1.0.0-beta.24. If you generated the project from previous version (eg. *-beta.22 in my case), upgrade the local project package(dev dependencies) by running commands below:

>rm -rf node_modules dist tmp
>npm install --save-dev angular-cli@latest
>npm install
>ng init

To upgrade to new angular-cli, run commands below in the command-line:

>npm uninstall -g angular-cli
>npm cache clean
>npm install -g angular-cli@latest

Update on 2/23/2017: Syntax changed in getting latest angular-cli. Use command below instead:

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