Failed to resolve: androidx.lifecycle:lifecycle-extensions-ktx:2.0.0-alpha1
Solution 1
UPDATE
As per @Dr.jacky's comment and Android Developers Documentation,
The APIs in lifecycle-extensions have been deprecated. Instead, add dependencies for the specific Lifecycle artifacts you need.
More Info at https://developer.android.com/jetpack/androidx/releases/lifecycle
I have found the answer. As Thunder Knight
said here it seems to be that the repository was emptied somehow. Hence, you can not download it from the repository.
. I agree with this and so i was looking for answer on mvnrepository.com and i found it here. I have to add
implementation group: 'androidx.lifecycle', name: 'lifecycle-extensions', version: '2.0.0-alpha1'
line for adding lifecycle-extensions and also i was adding -ktx
in name of library but it was the mistake. In documentation they have not commented to add -ktx
in line of lifecycle-extensions
.
Credits:- @Thunder Knight
Solution 2
The current version is 2.2.0
use -ktx for kotlin implementation and kapt for annotationProcesssor
implementation 'androidx.lifecycle:lifecycle-extensions:2.2.0'
annotationProcessor 'androidx.lifecycle:lifecycle-compiler:2.2.0'
Check the developer site for more information
https://developer.android.com/topic/libraries/architecture/adding-components
Solution 3
Just dont use -ktx in lifecycle-extensions. There is no separate '-ktx' version of the dependency unlike in viewmodel
![Jaydip Kalkani](https://i.stack.imgur.com/P3Meo.jpg?s=256&g=1)
Comments
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Jaydip Kalkani almost 2 years
I am trying to understand ViewModel and LiveData concepts in android. I am making a practice project but when i added
implementation 'androidx.lifecycle:lifecycle-extensions-ktx:2.0.0-alpha1'
line in my app level gradle file it shows meFailed to resolve: androidx.lifecycle:lifecycle-extensions-ktx:2.0.0-alpha1.
I have searched on google for solution and i found this answer, it works when i compile only viewmodel library but if i compile extensions library using same method as
implementation group: 'androidx.lifecycle', name:'lifecycle-extensions-ktx', version: '2.0.0-alpha1'
, it shows the same error as above. I have also tried to find it on Maven repositories site here but i didn't have any information for how to compile it.UPDATE
App Level Build.gradle
apply plugin: 'com.android.application' apply plugin: 'kotlin-android' apply plugin: 'kotlin-android-extensions' android { compileSdkVersion 28 defaultConfig { applicationId "***************" minSdkVersion 19 targetSdkVersion 28 versionCode 1 versionName "1.0" testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' } } } dependencies { implementation fileTree(dir: 'libs', include: ['*.jar']) implementation "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version" implementation 'com.android.support:appcompat-v7:28.0.0-alpha3' implementation 'com.android.support.constraint:constraint-layout:1.1.2' testImplementation 'junit:junit:4.12' androidTestImplementation 'com.android.support.test:runner:1.0.2' androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2' implementation group: 'androidx.lifecycle', name:'lifecycle-extensions-ktx', version: '2.0.0-alpha1' implementation group: 'androidx.lifecycle', name:'lifecycle-viewmodel-ktx', version: '2.0.0-alpha1' }
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Dr.jacky over 3 years
The APIs in lifecycle-extensions have been deprecated. Instead, add dependencies for the specific Lifecycle artifacts you need.
-> developer.android.com/jetpack/androidx/releases/lifecycle