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Tag: gradle

14 posts · Page 1 of 2

2026-10-21 errors flutter android

Fix: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is X, expected version is Y (Flutter Android)

A dependency was built with a Kotlin at least two minor versions newer than your build's compiler. Raise the org.jetbrains.kotlin.android version in settings.gradle.kts to X minus one or later, or pin the dependency back.

2026-10-06 errors flutter android

Fix: ClassNotFoundException for MainActivity when a Flutter Android app launches

The manifest's .MainActivity resolves against the Gradle namespace, and no class with that name is in the APK. Make namespace, the Kotlin package line, and the manifest agree.

2026-10-05 errors flutter android

Fix: Timeout waiting to lock journal cache in a Flutter Android build

Another Gradle process holds ~/.gradle/caches/journal-1 and cannot hand it over. Find the Owner PID, kill that daemon, and stop deleting .lock files: that only moves the error.

2026-09-25 errors flutter android

Fix: e: Daemon compilation failed: null in a Flutter Android Gradle build

On Windows, Kotlin incremental compilation fails when the Flutter project and the pub cache sit on different drives. Move PUB_CACHE to the project's drive or turn off IC for pub-cache plugins.

2026-09-18 migration flutter android

Migrate a Flutter Android project to AGP 9 with built-in Kotlin

The full path from an AGP 8 Flutter app that applies kotlin-android to AGP 9.1 with android.builtInKotlin=true on Flutter 3.47. Every step was built and measured, including the two edits that look optional and are not: kotlinOptions is a compile error under KGP 2.2+, and the KGP line in settings.gradle.kts has to stay.

2026-09-10 errors flutter android

Fix: Could not create Dart VM instance in a Flutter release build after flutter upgrade

The release APK shipped without libapp.so. Flutter 3.44.0 to 3.44.4 could drop it: upgrade to 3.44.5 or later and split the combined subprojects block.

2026-08-22 errors flutter android

Fix: A restricted method in java.lang.System has been called in a Flutter Gradle build

The JEP 472 warning on JDK 24+ is harmless and prints once. Fix it by matching your JDK to a Gradle version that supports it, not by pasting flags into gradle.properties.

2026-08-21 errors flutter android

Fix: Toolchain installation does not provide the required capabilities: [JAVA_COMPILER]

Gradle is compiling with a JRE. It is not searching your machine, it is using the exact JVM it was launched on. Point flutter config --jdk-dir at a real JDK, or clear org.gradle.java.home.

2026-08-14 errors flutter android

Fix: An error occurred while preparing SDK package NDK (Side by side): Not in GZIP format

The SDK Manager is re-unpacking a corrupt archive it cached in .downloadIntermediates. Delete that folder and the half-extracted ndk/<version> directory, then re-run the build.

2026-08-14 errors flutter maui

Fix: Google Play rejects a Flutter or .NET MAUI app for missing 16 KB memory page size support

Play rejects the bundle because a 64-bit .so still has 4 KB ELF segments. Find the offending library, rebuild it with NDK r28+, and verify with zipalign -P 16.