I just cloned an angular 6 project from bitbucket, did npm install
and all the related tasks, it seems to be working well, but when I try to generate a new comp
I also had same problem, when I trying to create component and after googling, I found https://jsonlint.com/ and which validate your JSON files and it points to the exact line and error.
For more information, please refer to following thread: https://github.com/angular/angular-cli/issues/10880
Cheers!