play framework 2.6 のコンパイルエラー

前提・実現したいこと

htmlファイルの表示

発生している問題・エラーメッセージ

Compilation error
object index is not a member of package views.html

6@Singleton
7class HomeController @Inject()(cc: ControllerComponents) extends AbstractController(cc) {
8  def index() = Action { implicit request: Request[AnyContent] =>
9    Ok(views.html.index()) 
10  }
11

該当のソースコード

scala
1package controllers
2
3import javax.inject._
4import play.api.mvc._
5
6@Singleton
7class HomeController @Inject()(cc: ControllerComponents) extends AbstractController(cc) {
8  def index() = Action { implicit request: Request[AnyContent] =>
9    Ok(views.html.index())
10  }
11}
12

# Routes
# This file defines all application routes (Higher priority routes first)
# https://www.playframework.com/documentation/latest/ScalaRouting
# ~~~~

# An example controller showing a sample home page
GET     /database                           controllers.SampleController.database
GET     /index                           controllers.HomeController.index

name := "scala_micro_blog"
organization := "com.fringe81"

version := "1.0-SNAPSHOT"

lazy val microBlog = (project in file(".")).enablePlugins(PlayScala)

scalaVersion := "2.12.6"

lazy val defaultDependencies = {
  val scalikeJdbcDependencies = {
    val scalikeJdbcVersion = "3.2.3"
    List(
      "org.scalikejdbc" %% "scalikejdbc"        % scalikeJdbcVersion,
      "org.scalikejdbc" %% "scalikejdbc-config" % scalikeJdbcVersion,
      "org.scalikejdbc" %% "scalikejdbc-play-initializer" % "2.6.0-scalikejdbc-3.2"
    )
  }

  List(
    evolutions, jdbc, guice,
    "com.h2database"  %  "h2"                 % "1.4.197",
    "ch.qos.logback"  %  "logback-classic"    % "1.2.+",
    "org.scalatestplus.play" %% "scalatestplus-play" % "3.1.2" % Test
  ) ++ scalikeJdbcDependencies
}

libraryDependencies ++= defaultDependencies

// sbt scalafmtでコードフォーマット
scalafmtConfig := Some(file(".scalafmt.conf"))
scalafmtOnCompile := true // compile時に自動でコードフォーマット