Invalid rule result: Instance of class Promise

Question

I work with Angular 7.1.4. I want to generate a new module with the following line;

ng g m order-process

But I encountered an error:

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Answer 1

Angular CLI: 8.0.3 Node: 10.16.0 OS: darwin x64 Angular: 7.2.7

I also encountered this problem, but it was resolved when I chose to reinstall node！I hope I can help you！