java.lang.NoClassDefFoundError: com/android/build/api/dsl/CommonExtension

[Jadyli]

ktlint gradle version: 11.0.0
agp version: 7.2.2
gradle version: gradle-7.5.1-bin

After removing ktlint, the project can run sync and build normally.

java.lang.NoClassDefFoundError: com/android/build/api/dsl/CommonExtension
	at org.jlleitschuh.gradle.ktlint.android.AndroidPluginsApplierKt$androidPluginConfigureAction$1.invoke(AndroidPluginsApplier.kt:67)
	at org.jlleitschuh.gradle.ktlint.android.AndroidPluginsApplierKt$androidPluginConfigureAction$1.invoke(AndroidPluginsApplier.kt:66)
	at org.jlleitschuh.gradle.ktlint.android.AndroidPluginsApplierKt$applyKtLintToAndroid$1.invoke$lambda-0(AndroidPluginsApplier.kt:29)
	at org.gradle.configuration.internal.DefaultUserCodeApplicationContext$CurrentApplication$1.execute(DefaultUserCodeApplicationContext.java:123)

[dfavaro]

Same here. Trying to integrate ktlint gradle in this template (multi-module branch) following the doc, into the root build.gradle. Getting the same error. Would appreciate some help.

[choongyouqi]

you will need com.android.application in your project gradle.

plugins {
    id("com.android.application") version "7.4.1" apply false
    id("org.jlleitschuh.gradle.ktlint") version "9.4.1" apply false
}

[wakingrufus]

version 12.1.0 of ktlint gradle came with fixes around AGP >= 7.0. Can you please retry with this version and report if it resolves your issue?
Thanks

[Sevastyan]

Having the same issue with version 12.1.1 even.

buildSrc/settings.gradle.kts:

dependencyResolutionManagement {
    versionCatalogs {
        create("libs") {
            from(files("../gradle/libs.versions.toml"))
        }
    }
}

buildSrc/build.gradle.kts:

plugins {
    `kotlin-dsl`
}

repositories {
    gradlePluginPortal()
    google()
    mavenCentral()
}


dependencies {
    implementation(libs.gradlePlugin.ktlint)
}

buildSrc/src/main/kotlin/...gradle.kts:

plugins {
    id("org.jlleitschuh.gradle.ktlint")
}

libs.versions.toml:

...
[libraries]
gradlePlugin-ktlint = "org.jlleitschuh.gradle:ktlint-gradle:12.1.1"
...