Error "was compiled with a incompatible version of Kotlin. The binary version...."

[robertruben98]

When i try to run the project this error appears:

home_widget\HomeWidgetProvider.kt: (12, 9): Class 'kotlin.Unit' was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.9.0, expected version is 1.7.1.

i try this, but doesn't work

buildscript {
    ext.kotlin_version = '1.9.24'
    repositories {
        google()
        mavenCentral()
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:8.0.0'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    }
}

can you help me please?

[Oh-Kang94]

Also, I have a same issue like above. Before, I make the project with this lib, I updated flutter 3.20 to 3.22.0.
Is there anyone solve this issue?

[Dec-QXY]

OMG, I also have the same problem. I set kotlin_version to the latest version and the same problem occurs. The same problem occurs when I set it to 1.9.0.

[Oh-Kang94]

I found the solution.
This is worked for me!

Please, amend ./android/settings.gradle

plugins {
    id "dev.flutter.flutter-plugin-loader" version "1.0.0"
    id "com.android.application" version "7.3.0" apply false
    id "org.jetbrains.kotlin.android" version "1.9.20" apply false
}