illegal cyclic reference involving object models - scala

Question

When I try to pass a list to the view page of a Play application I receive an error:
illegal cyclic reference involving object models
Error screenshot:
models.scala.html:
#(liValues: List[String])
#for(value <- liValues){
<li>#value</li>
}
entry in routes files:
GET /models/tictactoe controllers.ModelController.index
index method in ModelController.scala where I pass the values:
def index = Action {
Ok(views.html.models(List("Link1" , "Link2" , "Link3")))
}
Complete ModelController:
package controllers
import javax.inject._
import play.api.libs.json.Json
import play.api.mvc._
/**
* This controller creates an `Action` to handle HTTP requests to the
* application's home page.
*/
#Singleton
class ModelController #Inject()(cc: ControllerComponents) extends AbstractController(cc) {
/**
* Create an Action to render an HTML page with a welcome message.
* The configuration in the `routes` file means that this method
* will be called when the application receives a `GET` request with
* a path of `/`.
*/
def index = Action {
Ok(views.html.models(List("Link1" , "Link2" , "Link3")))
}
def sj = Action {
Ok(Json.toJson(List(1,2,3)).toString());
}
}
it seems I'm not declaring the list value in the view page correctly ?

Answer 1

It seems DummyPlaceHolder.scala
package models
/*
* Empty placeholder object to make sure templates keep compiling (due to
* imports in template files), even if projects don't have any models.
*/
object DummyPlaceHolder
is interfering with your views.html.models which also has models so the generated template target/scala-2.13/twirl/main/views/html/models.template.scala will have something like
import models._
object models extends ...
which causes illegal cycle. Try changing the name of your template from views.html.models to say views.html.model.