title: Problems trying to generate Kotlin application with Android Studio
body: <p>-Android Studio 1.5.1, Java 1.7.0 amd64, Ubuntu 15.10 </p>
  
  <p>-instaled kotlin-plugin 1.0.0 </p>
  
  <p>-created new project with empty activity (API level 15)</p>
  
  <p>-Tools->Kotlin->Configure Kotlin in project</p>
  
  <p>-Default options are selected, All modules, Kotlin plugin version 1.0.0</p>
  
  <p>Generate build.gradle</p>
  
  <pre><code>apply plugin: 'com.android.application'
  apply plugin: 'kotlin-android'
  
  android {
      compileSdkVersion 23
      buildToolsVersion "23.0.2"
  
  defaultConfig {
      applicationId "kotlin.org.jjvr.kotlinapplication"
      minSdkVersion 15
      targetSdkVersion 23
      versionCode 1
      versionName "1.0"
  }
  buildTypes {
      release {
          minifyEnabled false
          proguardFiles getDefaultProguardFile('proguard-android.txt'),    'proguard-rules.pro'
      }
  }
  sourceSets {
      main.java.srcDirs += 'src/main/kotlin'
  }
  }
  
  dependencies {
  compile fileTree(dir: 'libs', include: ['*.jar'])
  testCompile 'junit:junit:4.12'
  compile 'com.android.support:appcompat-v7:23.1.1'
  compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
  }
  buildscript {
  ext.kotlin_version = '1.0.0'
  repositories {
      mavenCentral()
  }
  dependencies {
      classpath "org.jetbrains.kotlin:kotlin-gradle-    plugin:$kotlin_version"
  }
  }
  repositories {
  mavenCentral()
  }
  </code></pre>
  
  <p>-open in editor MainActivity.java and convert to Kotlin:
  - kotlin Code->Convert Java File to Kotlin File</p>
  
  <pre><code>import android.support.v7.app.AppCompatActivity
  import android.os.Bundle
  
  class MainActivity : AppCompatActivity() {
  
  override fun onCreate(savedInstanceState: Bundle?) {
      super.onCreate(savedInstanceState)
      setContentView(R.layout.activity_main)
  }
  }
  </code></pre>
  
  <p>-while building these errors are listed</p>
  
  <p>Error: Only the Kotlin standard library is allowed to use the 'kotlin' package</p>
  
  <p>Error:Execution failed for task ':app:compileDebugKotlin'.</p>
  
  <blockquote>
    <p>Compilation error.</p>
  </blockquote>
  
  <p>Any idea what's going on?</p>
  
  <p>Thanks in advance</p>