Question 220276 in Flutter Question posted in
The official Flutter documentation can be found here.

Flutter Warning when build release

I keep on getting these red warning when i try to build –release my app:
tried flutter clean………
flutter clean –cache nothing is working, all packages are up-to-date.

My build Gradle:

    buildscript {
    ext.kotlin_version = '1.8.0'
    repositories {
        google()
        mavenCentral()
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:7.3.0'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    }
}

These Red Warning comes First:

 C:UsersPCAppDataLocalPubCachehostedpub.devcloud_firestore-4.8.4androidsrcmainjavaioflutterpluginsfirebasefirestoreFlutterFirebaseFirestoreMessageCodec.java uses unchecked or unsafe operations.
    Note: Recompile with -Xlint:unchecked for details.
    Note: Some input files use or override a deprecated API.
    Note: Recompile with -Xlint:deprecation for details.
    Note: C:UsersPCAppDataLocalPubCachehostedpub.devfirebase_messaging-14.6.5androidsrcmainjavaioflutterpluginsfirebasemessagingFlutterFirebaseMessagingPlugin.java uses unchecked or unsafe operations.
    Note: Recompile with -Xlint:unchecked for details.

e: C:/Users/PC/.gradle/caches/transforms-3/96912e3e4984bdc463916ea6fba56ac4/transformed/jetified-activity-1.7.2/jars/classes.jar!/META-INF/activity_release.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.
e: C:/Users/PC/.gradle/caches/transforms-3/c0c21f8311e0d3bdd149fde1cccd7c6b/transformed/lifecycle-livedata-core-2.6.1/jars/classes.jar!/META-INF/lifecycle-livedata-core_release.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.
e: C:/Users/PC/.gradle/caches/transforms-3/57c255789025aac2fb6743aca74eb9ff/transformed/lifecycle-livedata-2.6.1/jars/classes.jar!/META-INF/lifecycle-livedata_release.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.
e: C:/Users/PC/.gradle/caches/transforms-3/dfe23d076662816f417c59321ede171a/transformed/lifecycle-viewmodel-2.6.1/jars/classes.jar!/META-INF/lifecycle-viewmodel_release.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.
e: C:/Users/PC/.gradle/caches/transforms-3/4fec81ebf7b0698db38977ed6bdfb196/transformed/jetified-lifecycle-viewmodel-savedstate-2.6.1/jars/classes.jar!/META-INF/lifecycle-viewmodel-savedstate_release.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.
e: C:/Users/PC/.gradle/caches/transforms-3/a45d532d047b5ee2ada4d44d5157d37f/transformed/jetified-core-ktx-1.10.1/jars/classes.jar!/META-INF/core-ktx_release.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.
e: C:/Users/PC/.gradle/caches/transforms-3/9d8fb97b2a99c1b1d78bd925837bcbf3/transformed/core-1.10.1/jars/classes.jar!/META-INF/core_release.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.      
e: C:/Users/PC/.gradle/caches/transforms-3/9c576e910ff1e555ef5f56b5c13b0097/transformed/lifecycle-runtime-2.6.1/jars/classes.jar!/META-INF/lifecycle-runtime_release.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.
e: C:/Users/PC/.gradle/caches/modules-2/files-2.1/androidx.lifecycle/lifecycle-common/2.6.1/10f354fdb64868baecd67128560c5a0d6312c495/lifecycle-common-2.6.1.jar!/META-INF/lifecycle-common.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.
e: C:/Users/PC/.gradle/caches/transforms-3/134cbae0d4fd6d050de78674ca51ac81/transformed/jetified-savedstate-1.2.1/jars/classes.jar!/META-INF/savedstate_release.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.
e: C:/Users/PC/.gradle/caches/modules-2/files-2.1/androidx.annotation/annotation-jvm/1.6.0/a7257339a052df0f91433cf9651231bbb802b502/annotation-jvm-1.6.0.jar!/META-INF/annotation.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.
e: C:/Users/PC/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib/1.8.22/636bf8b320e7627482771bbac9ed7246773c02bd/kotlin-stdlib-1.8.22.jar!/META-INF/kotlin-stdlib-jdk7.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.
e: C:/Users/PC/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib/1.8.22/636bf8b320e7627482771bbac9ed7246773c02bd/kotlin-stdlib-1.8.22.jar!/META-INF/kotlin-stdlib.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.
e: C:/Users/PC/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib/1.8.22/636bf8b320e7627482771bbac9ed7246773c02bd/kotlin-stdlib-1.8.22.jar!/META-INF/kotlin-stdlib-jdk8.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.
e: C:/Users/PC/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib-common/1.8.22/1a8e3601703ae14bb58757ea6b2d8e8e5935a586/kotlin-stdlib-common-1.8.22.jar!/META-INF/kotlin-stdlib-common.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.
Running Gradle task 'assembleRelease'...
Tags:

2

Answers


  1. 0

    You can add the following lines to your build.gradle file:

    android {
    lintOptions {
        checkReleaseBuilds false
        // Or, if you prefer, you can continue to check for errors in release builds,
        // but continue the build even when errors are found:
        abortOnError false
    }
}

    This should allow the build to continue even when warnings are found. However, this is not a long-term solution and it is recommended to investigate and resolve the warnings when possible.

    Additionally, try running flutter pub cache clean in your terminal. This command cleans your Flutter and Dart package cache which might help with the build issues.

    Login or Signup to reply.
  2. 0

    Have you tried deleting the Gradle cache directory (C:/Users/PC/.gradle/caches/)?

    Login or Signup to reply.
Please signup or login to give your own answer.

Back To Top
Search