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fix(android): set the Kotlin jvmTarget without requiring the Kotlin G… #3799

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Merged
szuperaz merged 1 commit into from
Sep 8, 2026
+18 −12
Merged

fix(android): set the Kotlin jvmTarget without requiring the Kotlin G… #3799

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15 changes: 9 additions & 6 deletions package/expo-package/android/build.gradle
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Original file line number Diff line number Diff line change
Expand Up @@ -69,16 +69,13 @@ android {
}

compileOptions {
// Must match the Kotlin jvmTarget below. AGP 9 (React Native 0.87) fails the build on an
// inconsistent JVM-target between the Java and Kotlin compilation tasks.
// Must match the Kotlin jvmTarget set on the KotlinCompile tasks below: an inconsistent
// JVM-target between the Java and Kotlin compilation tasks fails the build. On AGP 9 this
// is also what AGP's built-in Kotlin derives the Kotlin jvmTarget from.
sourceCompatibility JavaVersion.VERSION_17
targetCompatibility JavaVersion.VERSION_17
}

kotlinOptions {
jvmTarget = "17"
}

sourceSets {
main {
if (isNewArchitectureEnabled()) {
Expand Down Expand Up @@ -128,6 +125,12 @@ tasks.matching { it.name == "preBuild" }.configureEach {

tasks.withType(org.jetbrains.kotlin.gradle.tasks.KotlinCompile).configureEach {
dependsOn("syncSharedShimmerSources")
// Set here rather than via `android.kotlinOptions`: that DSL is contributed by the Kotlin
// Gradle plugin, which is deliberately not applied when AGP registers the `kotlin`
// extension itself (see the guard at the top of this file). This form works either way.
compilerOptions {
jvmTarget = org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_17
}
}

repositories {
Expand Down
15 changes: 9 additions & 6 deletions package/native-package/android/build.gradle
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Original file line number Diff line number Diff line change
Expand Up @@ -79,16 +79,13 @@ android {
}

compileOptions {
// Must match the Kotlin jvmTarget below. AGP 9 (React Native 0.87) fails the build on an
// inconsistent JVM-target between the Java and Kotlin compilation tasks.
// Must match the Kotlin jvmTarget set on the KotlinCompile tasks below: an inconsistent
// JVM-target between the Java and Kotlin compilation tasks fails the build. On AGP 9 this
// is also what AGP's built-in Kotlin derives the Kotlin jvmTarget from.
sourceCompatibility JavaVersion.VERSION_17
targetCompatibility JavaVersion.VERSION_17
}

kotlinOptions {
jvmTarget = "17"
}

sourceSets {
main {
if (isNewArchitectureEnabled()) {
Expand Down Expand Up @@ -141,6 +138,12 @@ tasks.matching { it.name == "preBuild" }.configureEach {

tasks.withType(org.jetbrains.kotlin.gradle.tasks.KotlinCompile).configureEach {
dependsOn("syncSharedShimmerSources")
// Set here rather than via `android.kotlinOptions`: that DSL is contributed by the Kotlin
// Gradle plugin, which is deliberately not applied when AGP registers the `kotlin`
// extension itself (see the guard at the top of this file). This form works either way.
compilerOptions {
jvmTarget = org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_17
}
}

repositories {
Expand Down