# Android Studio Editor Rendering Problems

**URL:** <https://discuss.kotlinlang.org/t/android-studio-editor-rendering-problems/1569>\
**Category:** Android\
**Created:** [March 31, 2016, 8:12am UTC](https://discuss.kotlinlang.org/t/android-studio-editor-rendering-problems/1569 "2016-03-31T08:12:04Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![kejin](https://avatars.discourse-cdn.com/v4/letter/k/439d5e/32.png) [@kejin](https://discuss.kotlinlang.org/u/kejin)\
**Post date:** [March 31, 2016, 8:12am UTC](https://discuss.kotlinlang.org/t/android-studio-editor-rendering-problems/1569/1 "2016-03-31T08:12:04Z")

</div>

This problem appear on android studio 2.0, but it work fine on Android Studio 1.5.1  
Heere is my code  
`
class ExRecyclerView: RecyclerView {`

`
```
private val headerViews: MutableList<View> = mutableListOf()

private val footerViews: MutableList<View> = mutableListOf()

.....

```
`

`}
`

The android studio rendering problems  
`
java.lang.NoSuchMethodError: kotlin.collections.CollectionsKt.mutableListOf([Ljava/lang/Object;)Ljava/util/List;
`

---

<div class="post-metadata">

**Author:** ![yole](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.kotlinlang.org/yole/32/1425_2.png) [@yole](https://discuss.kotlinlang.org/u/yole)\
**Post date:** [March 31, 2016, 11:56am UTC](https://discuss.kotlinlang.org/t/android-studio-editor-rendering-problems/1569/2 "2016-03-31T11:56:22Z")

</div>

Please ensure that your project references the correct version of the Kotlin runtime library in its build.gradle.

---

<div class="post-metadata">

**Author:** ![kejin](https://avatars.discourse-cdn.com/v4/letter/k/439d5e/32.png) [@kejin](https://discuss.kotlinlang.org/u/kejin)\
**Post date:** [March 31, 2016, 3:22pm UTC](https://discuss.kotlinlang.org/t/android-studio-editor-rendering-problems/1569/3 "2016-03-31T15:22:08Z")

</div>

My kotlin version is 1.0.1, the lastest version  
Here is my module buid.gradle

```nohighlight
apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'

android {
    compileSdkVersion 23
    buildToolsVersion "23.0.2"

    defaultConfig {
        applicationId "cn.kejin.gitbook"
        minSdkVersion 15
        targetSdkVersion 23
        versionCode 1
        versionName "1.0"
    }

    sourceSets {
        main.java.srcDirs += 'src/main/kotlin'
        test.java.srcDirs += 'src/test/kotlin'
        androidTest.java.srcDirs += 'src/androidTest/kotlin'
    }
}

dependencies {
    ....
    compile 'org.jetbrains.kotlin:kotlin-android-extensions:1.0.0'
    compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version" 
    ....
}
buildscript {
    ext.kotlin_version = '1.0.1'
    repositories {
        mavenCentral()
        jcenter()
    }
    dependencies {
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
        classpath "org.jetbrains.kotlin:kotlin-android-extensions:$kotlin_version"
    }
}
repositories {
    jcenter()
}

```

Here is the root project build.gradle

```nohighlight

buildscript {
    ext.kotlin_version = '1.0.1'
    repositories {
        jcenter()
        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:1.5.0'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        jcenter()
    }
}

```