Question 395476 in Android Studio Question posted in
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Android Studio – Compiler error migrating to androidx.lifecycle 2.8.0 library

I am using:

implementation 'androidx.lifecycle:lifecycle-extensions:2.2.0'
implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.7.0'
annotationProcessor 'androidx.lifecycle:lifecycle-common-java8:2.7.0'

libraries in my Android Java project. If I try to move it to 2.8.0 version, I have a message from compiler:

ViewModelProvider(androidx.lifecycle.viewmodel.ViewModelProviderImpl) has private access in 'androidx.lifecycle.ViewModelProvider.

UPDATE:
Thanks to @IanHannibalLake, I have replaced deprecated library
implementation 'androidx.lifecycle:lifecycle-extensions:2.2.0' with implementation 'androidx.lifecycle:lifecycle-process:2.7.0' and now I am able to compile the project with 2.7.0 libraries version in the configuration:

implementation 'androidx.lifecycle:lifecycle-process:2.7.0'  
implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.7.0'
annotationProcessor 'androidx.lifecycle:lifecycle-common-java8:2.7.0'

But an attempt to compile with 2.8.0 versions give me the same error from the compiler on the string:

SearchListViewModel viewModel = new ViewModelProvider(this, viewModelFactory).get(SearchListViewModel.class);

What change was made in the lifecycle libraries in version 2.7.0 that prevents me from compiling the project with the next version 2.8.0!?

UPDATE 2: I have found a fresh bug ViewModel 2.8.0: constructor has private access in ViewModelProvider with the same question.

Tags:

2

Answers


  1. 0

    The error is happening because the android-lifecycle library is now a kotlin multiplatform project and the gradle dependency resolution picks the jvm variant instead of the android one.
    This only happens to projects which do not apply the kotlin-android gradle plugin!

    The problem is the "org.jetbrains.kotlin.platform.type" variant attribute is not requested and so gradle picks the jvm lifecycle-viewmodel variant.
    When you add the kotlin-android plugin the attribute is automatically set to "androidJvm".
    For more information about gradle variant attributes see https://docs.gradle.org/current/userguide/variant_attributes.html

    You can debug this with the following command:

    gradlew -q app:dependencyInsight --dependency lifecycle-viewmodel --configuration debugAndroidCompileClasspath

    This is a bug and should be fixed by Google. Probably by setting the "org.gradle.jvm.environment" variant to "android"
    A workaround could look like this but i am not a Gradle expert and there should be a better solution.

        implementation("androidx.lifecycle:lifecycle-viewmodel")
    constraints {
        def platformTypeArgument = Attribute.of("org.jetbrains.kotlin.platform.type",  String)
        implementation("androidx.lifecycle:lifecycle-viewmodel:2.8.1") {
            because "The wrong dependency is picked"
            attributes {
                attribute(platformTypeArgument, "androidJvm")
            }
        }
        implementation("androidx.lifecycle:lifecycle-runtime:2.8.1") {
            because "The wrong dependency is picked"
            attributes {
                attribute(platformTypeArgument, "androidJvm")
            }
        }
}

    UPDATE:

    I found the following error for compose https://issuetracker.google.com/issues/328687152 which is basically the same problem.
    Just upgrade the Android Gradle Plugin to version 8.4.0 and the problem is solved.

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  2. 0

    for a Java project remove :

    implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:X.X.X'

    it should looks like :

    implementation 'androidx.lifecycle:lifecycle-common-jvm:2.8.3'  
implementation 'androidx.lifecycle:lifecycle-process:2.8.3'  
implementation 'androidx.lifecycle:lifecycle-viewmodel-android:2.8.3'
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