Warning when building with AOT for NgbModalRef referring to Angular 5.x

Bug description:

When building with AOT, I’m getting a warning, not an error though.

[ERROR]  11% building modules 14/14 modules 0 activeWarning: 
Can't resolve all parameters for NgbModalRef in 
/home/projects/angular-app/node_modules/@ng-bootstrap/ng-bootstrap/modal/modal-ref.d.ts: 
([object Object], [object Object], [object Object], ?). 
This will become an error in Angular v5.x

The build went through and no problem as for now but I forsee this will be when Angular move to v5.x

Version of Angular, ng-bootstrap, and Bootstrap:

Angular: 4.3.6

ng-bootstrap: 1.0.0-beta.3

Bootstrap: 4

[leksim]

I’m facing this issue as an error on angular 4.4.3 while using the same 1.0.0-beta.5

I worked around this error by removing the reference to NgbModalRef from the NgModule and using any as shown below.

modal:any;

showModal(){ this.modal = this.modalService.open(content); }

closeModal(){ this.modal.close(); }

[djvelimir]

FYI, just tried version: 1.0.0-beta.5, problem is fixed.