Warning with maven repository in build.gradle in IntelliJ - intellij-idea

Question

I am trying to setup a new scala project in IntelliJ (2016.3.4, built on January 31, 2017) with gradle. My build.gradle is as given below:
group 'org.microservices.architecture'
version '1.0-SNAPSHOT'
apply plugin: 'scala'
repositories {
mavenCentral()
}
dependencies {
compile 'org.scala-lang:scala-library:2.10.1'
}
tasks.withType(ScalaCompile) {
ScalaCompileOptions.metaClass.daemonServer = true
ScalaCompileOptions.metaClass.fork = true
ScalaCompileOptions.metaClass.useAnt = false
ScalaCompileOptions.metaClass.useCompileDaemon = false
}
dependencies {
compile group: 'com.typesafe.akka', name: 'akka-actor_2.11', version: '2.4.17'
compile group: 'org.scala-lang', name: 'scala-library', version: '2.12.1'
testCompile 'org.scalatest:scalatest_2.11:3.0.1'
testCompile 'junit:junit:4.12'
}
sourceSets {
main {
scala {
srcDirs = ['src/scala']
}
}
test {
scala {
srcDirs = ['test/scala']
}
}
}
The problem is I get following warning message:
The following repositories used in your gradle projects were not indexed yet: https://repo1.maven.org/maven2.
If you want to use dependency completion for these repositories
artifacts, Open Repositories List, select required repositories and
press "Update" button.