Question or issue of Kotlin Programming:
Has anyone solved this issue?
I am using AS 3.0 Canary 4
How to solve this issue?
Solution no. 1:
I followed @Miha_x64’s advice and upgraded the plug-in which solved my problem:
Tools -> Kotlin -> Configure Kotlin Plugin Updates -> Check for updates now
My version of Android Studio is:
Android Studio 3.0.1 Build #AI-171.4443003, built on November 9, 2017
Solution no. 2:
In my case, I converted Java to Kotlin and I have already Kotlin installed with lower version. So I updated it.
Tools -> Kotlin -> Configure Kotlin Plugin Updates then Check for updates now then choose Stable
.
But it didn’t update my version in the build.gradle file automatically. Because it detected a newer version and differs from the old one.
So I manually updated my version to the latest from
ext.kotlin_version = '1.0.0' to ext.kotlin_version = '1.2.41'
buildscript { ext.kotlin_version = '1.2.41' repositories { google() jcenter() } dependencies { classpath 'com.android.tools.build:gradle:3.1.2' 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 } }
Solution no. 3:
There’s an issue in Android Studio 3.0 Canary 4 that prevents it from loading the updated version of the Kotlin plugin. You can ignore the warning shown by the Kotlin plugin in build.gradle until a newer version of Android Studio 3.0 is released.
Solution no. 4:
I also had the same issue, I am using Android Studio 3.2.1
Change the Kotlin version of your project build.gradle file(not module build.gradle file) to latest(at the moment it is 1.3.11)
ext.kotlin_version = '1.3.11'
then there will be notification call Kotlin migration, click Run migrations link on the notification.
Solution no. 5:
add this in your build gradle app
apply plugin: 'com.android.application' apply plugin: 'kotlin-android' apply plugin: 'kotlin-android-extensions' apply plugin: 'kotlin-kapt'
