App initialization error

[blueiceprj]

main.ts:47 Error: NG0200: Circular dependency in DI detected for ApplicationRef. Find more at https://angular.io/errors/NG0200
at throwCyclicDependencyError (core.mjs:240:11)
at R3Injector.hydrate (core.mjs:6883:13)
at R3Injector.get (core.mjs:6775:33)
at injectInjectorOnly (core.mjs:4782:33)
at Module.ɵɵinject (core.mjs:4786:60)
at Object.ViewService_Factory [as factory] (ngneat-overview.mjs:19:101)
at R3Injector.hydrate (core.mjs:6887:35)
at R3Injector.get (core.mjs:6775:33)
at injectInjectorOnly (core.mjs:4782:33)
at Module.ɵɵinject (core.mjs:4786:60)

I'm submitting a...

[ ] Regression (a behavior that used to work and stopped working in a new release)
[X] Bug report  
[ ] Performance issue
[ ] Feature request
[ ] Documentation issue or request
[ ] Support request
[ ] Other... Please describe:

Current behavior

Expected behavior

Minimal reproduction of the problem with instructions

What is the motivation / use case for changing the behavior?

Environment

Angular version: X.Y.Z


Browser:
- [X] Chrome (desktop) version XX
- [ ] Chrome (Android) version XX
- [ ] Chrome (iOS) version XX
- [ ] Firefox version XX
- [ ] Safari (desktop) version XX
- [ ] Safari (iOS) version XX
- [ ] IE version XX
- [ ] Edge version XX
 
For Tooling issues:
- Node version: XX  
- Platform:  

Others: