Recyclerview not being displayed when using API 28 - android

I have an android module (my own lib) which I'm using to fetch data from the web and display it as a list using recyclerview.
The data consists of paths to images which i'm loading via Picasso lib. Each item in the recyclerview list is an ImageView.
I am using androidx dependencies. The apps works as expected when installed in an emulator with API 24. However, the data is not displayed when the app is installed in an emulator with API 28.
I already debugged for API 28 and the data is fetcheda as expected.
Here is where the list returns from the web as 'it'. When debugging, the list comes with 20 items as expected.
viewModel.trendingsLiveData.observe(this, Observer {
Log.d("trendingtitle", "trendingsLiveData.observe() called")
allTrendingAdapter!!.loadItems(it)
allTrendingAdapter!!.notifyDataSetChanged()
shimmerViewContainer?.stopShimmer()//stopShimmerAnimation()
shimmerViewContainer?.setVisibility(View.INVISIBLE)
})
Line used to load images in the adapter (also checked with a breakpoint - working as expected)
Picasso.get().load("http://image.tmdb.org/t/p/w342${results!!.get(position).poster_path}").into(holder.poster);
Build.gradle (my Android Module)
apply plugin: 'com.android.library'
apply plugin: 'kotlin-android-extensions'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-kapt'
android {
compileSdkVersion 28
buildToolsVersion "29.0.0"
defaultConfig {
minSdkVersion 21
targetSdkVersion 28
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
implementation 'androidx.appcompat:appcompat:1.0.2'
implementation 'androidx.core:core-ktx:1.0.2'
implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
implementation 'androidx.legacy:legacy-support-v4:1.0.0'
implementation 'androidx.lifecycle:lifecycle-extensions:2.0.0'
implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.0.0'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'androidx.test:runner:1.2.0'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
def moshiVersion="1.8.0"
def retrofit2_version = "2.5.0"
def okhttp3_version = "3.12.0"
def kotlinCoroutineVersion = "1.0.1"
def picassoVersion = "2.71828"
//ViewModel Scope
implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.2.0-alpha01'
//recyclerview
implementation 'androidx.recyclerview:recyclerview:1.0.0'
implementation 'com.google.android.material:material:1.0.0'
//Moshi
implementation "com.squareup.moshi:moshi-kotlin:$moshiVersion"
kapt "com.squareup.moshi:moshi-kotlin-codegen:$moshiVersion"
//Retrofit2
implementation "com.squareup.retrofit2:retrofit:$retrofit2_version"
implementation "com.squareup.retrofit2:converter-moshi:$retrofit2_version"
implementation "com.jakewharton.retrofit:retrofit2-kotlin-coroutines-adapter:0.9.2"
//Because of an error with JAR version
implementation "org.jetbrains.kotlin:kotlin-reflect:'1.3.31'"
//Okhttp3
implementation "com.squareup.okhttp3:okhttp:$okhttp3_version"
implementation 'com.squareup.okhttp3:logging-interceptor:3.11.0'
//Picasso
implementation ("com.squareup.picasso:picasso:$picassoVersion"){
exclude group: "com.android.support"
}
implementation 'com.facebook.shimmer:shimmer:0.4.0'
}
Build.gradle (Module app)
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
android {
compileSdkVersion 28
buildToolsVersion "29.0.0"
defaultConfig {
applicationId "com.example.myapplication"
minSdkVersion 21
targetSdkVersion 28
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation"org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
implementation 'androidx.appcompat:appcompat:1.0.2'
implementation 'androidx.core:core-ktx:1.0.2'
implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'androidx.test:runner:1.2.0'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
implementation project(path: ':posterlistlib')
}
Build.gradle (Project)
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
ext.kotlin_version = '1.3.41'
repositories {
google()
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.4.1'
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
google()
jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
Why is the list of images being displayed in API 24, but is not in API 28?

For simple fix please use below code in AndroidManifest.xml
<application
android:usesCleartextTraffic="true"
...>
From API 28, URL with HTTP won't work by default, for more details on this topic check below link
https://developer.android.com/about/versions/pie/android-9.0-changes-28

To fix the images not loading, replace http://image.tmdb.org with https://image.tmdb.org

Related

error: cannot find symbol import android.widget.selector;

My Android Studio Build fails with this error message, after updating several dependencies. I also switched from using "dataBinding{
enabled = true
}"
to "viewBinding true" I can't find a resolution for this anywhere. I already tried cleaning, rebuilding, invalidating caches and restarting the computer multiple times. Previous suggestions to similar questions didn't resolve this either. Do i have to start a new android studio project and copy over my code?
C:\Users\seric\AndroidStudioProjects\Futlytics\app\build\generated\data_binding_base_class_source_out\debug\out\com\futlytics\databinding\ToggleStyleBinding.java:7: error: cannot find symbol
import android.widget.selector;
I dont even use anything called ToggleStyleBinding.
My gradle files look like this:
Module
apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
//apply plugin: 'kotlin-android-extensions'
apply plugin: "androidx.navigation.safeargs.kotlin"
apply plugin: 'com.google.gms.google-services'
android {
compileSdkVersion 30
buildToolsVersion "30.0.0"
defaultConfig {
applicationId "com.futlytics"
minSdkVersion 22
targetSdkVersion 30
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
kotlinOptions {
jvmTarget = '1.8'
}
/*dataBinding{
enabled = true
}*/
buildFeatures {
mlModelBinding true
viewBinding true
}
}
dependencies {
implementation fileTree(dir: "libs", include: ["*.jar"])
implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
implementation 'androidx.core:core-ktx:1.3.2'
implementation 'androidx.appcompat:appcompat:1.2.0'
implementation 'com.google.android.material:material:1.3.0'
implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
//implementation 'androidx.navigation:navigation-fragment:2.3.4'
//implementation 'androidx.navigation:navigation-ui:2.3.4'
implementation 'androidx.lifecycle:lifecycle-extensions:2.2.0'
implementation 'androidx.navigation:navigation-fragment-ktx:2.3.4'
implementation 'androidx.navigation:navigation-ui-ktx:2.3.4'
implementation 'org.tensorflow:tensorflow-lite-support:0.1.0-rc1'
implementation 'org.tensorflow:tensorflow-lite-metadata:0.1.0-rc1'
implementation 'org.tensorflow:tensorflow-lite-gpu:2.2.0'
implementation 'com.google.firebase:firebase-auth:20.0.3'
implementation 'com.google.android.gms:play-services-auth:19.0.0'
testImplementation 'junit:junit:4.13.2'
androidTestImplementation 'androidx.test.ext:junit:1.1.2'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
implementation 'com.github.PhilJay:MPAndroidChart:v3.1.0'
implementation 'com.google.android.gms:play-services-vision:20.1.3'
implementation 'com.google.android.gms:play-services-mlkit-text-recognition:16.1.3'
implementation 'androidx.preference:preference-ktx:1.1.1'
// CameraX
implementation "androidx.camera:camera-camera2:1.1.0-alpha03"
implementation "androidx.camera:camera-lifecycle:1.1.0-alpha03"
implementation "androidx.camera:camera-view:1.0.0-alpha23"
//Firebase
implementation platform('com.google.firebase:firebase-bom:26.7.0')
implementation 'com.google.firebase:firebase-analytics-ktx'
implementation 'com.google.firebase:firebase-firestore-ktx'
implementation 'com.google.firebase:firebase-auth-ktx:20.0.3'
}
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apply plugin: 'kotlin-android'
//apply plugin: 'kotlin-android-extensions'
apply plugin: "androidx.navigation.safeargs.kotlin"
apply plugin: 'com.google.gms.google-services'
android {
compileSdkVersion 30
buildToolsVersion "30.0.0"
defaultConfig {
applicationId "com.futlytics"
minSdkVersion 22
targetSdkVersion 30
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
kotlinOptions {
jvmTarget = '1.8'
}
/*dataBinding{
enabled = true
}*/
buildFeatures {
mlModelBinding true
viewBinding true
}
}
dependencies {
implementation fileTree(dir: "libs", include: ["*.jar"])
implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
implementation 'androidx.core:core-ktx:1.3.2'
implementation 'androidx.appcompat:appcompat:1.2.0'
implementation 'com.google.android.material:material:1.3.0'
implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
//implementation 'androidx.navigation:navigation-fragment:2.3.4'
//implementation 'androidx.navigation:navigation-ui:2.3.4'
implementation 'androidx.lifecycle:lifecycle-extensions:2.2.0'
implementation 'androidx.navigation:navigation-fragment-ktx:2.3.4'
implementation 'androidx.navigation:navigation-ui-ktx:2.3.4'
implementation 'org.tensorflow:tensorflow-lite-support:0.1.0-rc1'
implementation 'org.tensorflow:tensorflow-lite-metadata:0.1.0-rc1'
implementation 'org.tensorflow:tensorflow-lite-gpu:2.2.0'
implementation 'com.google.firebase:firebase-auth:20.0.3'
implementation 'com.google.android.gms:play-services-auth:19.0.0'
testImplementation 'junit:junit:4.13.2'
androidTestImplementation 'androidx.test.ext:junit:1.1.2'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
implementation 'com.github.PhilJay:MPAndroidChart:v3.1.0'
implementation 'com.google.android.gms:play-services-vision:20.1.3'
implementation 'com.google.android.gms:play-services-mlkit-text-recognition:16.1.3'
implementation 'androidx.preference:preference-ktx:1.1.1'
// CameraX
implementation "androidx.camera:camera-camera2:1.1.0-alpha03"
implementation "androidx.camera:camera-lifecycle:1.1.0-alpha03"
implementation "androidx.camera:camera-view:1.0.0-alpha23"
//Firebase
implementation platform('com.google.firebase:firebase-bom:26.7.0')
implementation 'com.google.firebase:firebase-analytics-ktx'
implementation 'com.google.firebase:firebase-firestore-ktx'
implementation 'com.google.firebase:firebase-auth-ktx:20.0.3'
}
Project
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
ext.kotlin_version = "1.4.31"
repositories {
google()
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:4.1.3'
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
classpath "androidx.navigation:navigation-safe-args-gradle-plugin:2.3.4"
classpath 'com.google.gms:google-services:4.3.5'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
google()
jcenter()
maven { url 'https://jitpack.io' }
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
I had this issue when accidentally placed xml with <selector> to "layout" folder (instead of "drawable"). Android Studio then tries to make a Binding for it as for layout.
build.gradle(:app) -> just change TRUE to FALSE. (idk what viewBiding does, but my quite advanced app works (again) without error)
buildFeatures {
viewBinding false
}

Android studio could not resolve retrofit2 converter scalars 2.5.0

Android studio displays this strange error whenever I add some dependency to the grade file. It was working perfectly earlier. Further it displays no cached version of retrofit2 scalars available for offline mode.
Currently I tried almost all options from uninstalling and reinstalling android studio but no luck. I am running out of time so please help me resolve this.
apply plugin: 'com.android.application'
android {
compileSdkVersion 29
buildToolsVersion "29.0.3"
defaultConfig {
applicationId "com.example.protabler"
minSdkVersion 23
targetSdkVersion 29
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'androidx.appcompat:appcompat:1.0.2'
implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
implementation 'androidx.legacy:legacy-support-v4:1.0.0'
implementation 'androidx.navigation:navigation-fragment:2.0.0'
implementation 'androidx.navigation:navigation-ui:2.0.0'
implementation 'androidx.lifecycle:lifecycle-extensions:2.0.0'
implementation 'androidx.preference:preference:1.1.0-alpha05'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'androidx.test.ext:junit:1.1.0'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'
implementation "androidx.cardview:cardview:1.0.0"
implementation 'com.google.android.material:material:1.0.0'
implementation 'com.squareup.retrofit2:retrofit:2.4.0'
implementation 'com.google.code.gson:gson:2.8.6'
implementation 'com.squareup.retrofit2:converter-gson:2.4.0'
implementation 'com.squareup.retrofit2:converter-scalars:2.5.0'
implementation 'androidx.recyclerview:recyclerview:1.1.0'
implementation 'de.hdodenhof:circleimageview:3.0.1'
}
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
repositories {
google()
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.5.3'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
google()
jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}

Android Gradle project sync failed due to unresolved dependency

I recently added a card-stack-view dependency (implementation 'com.yuyakaido.android:card-stack-view:2.3.4') to my app level build.gradle and after that my project is giving syncing failure like:-
ERROR: Failed to resolve: androidx
Affected Modules: app
This is my build.gradle
apply plugin: 'com.android.application'
android {
compileSdkVersion 28
defaultConfig {
applicationId "com.animeapp.brijender.myapp"
minSdkVersion 19
targetSdkVersion 28
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
vectorDrawables.useSupportLibrary = true
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'androidx.appcompat:appcompat:1.1.0'
implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'androidx.test:run ner:1.2.0'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
implementation 'com.miguelcatalan:materialsearchview:1.4.0'
implementation 'androidx.recyclerview:recyclerview:1.0.0'
implementation 'com.squareup.retrofit2:retrofit:2.5.0'
implementation 'com.squareup.retrofit2:converter-gson:2.1.0'
implementation 'androidx.cardview:cardview:1.0.0'
implementation 'com.google.android.material:material:1.0.0'
implementation 'com.yuyakaido.android:card-stack-view:2.3.4'
}
Can anyone help what i might be doing wrong?
Just add jCenter repository in project’s build.gradle (or if you are using the new way just add it in your settings.gradle)
pluginManagement {
repositories {
gradlePluginPortal()
google()
mavenCentral()
}
}
dependencyResolutionManagement {
repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
repositories {
google()
mavenCentral()
jcenter()
}
}
include ':app'
Just Needed to remove these dependencies androidTestImplementation 'androidx.test:run ner:1.2.0' androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'

Kotlin the compiler warning and application cannot be executed

I have a project using androidx and kotlin, I get an error message when running the application as follows:
w: JAR runtime files in the classpath should have the same version. These files were found in the classpath:
w: /Users/arjava/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib-jre7/1.2.31/98678431965f7487d6dc9b399e59b6c4b3921073/kotlin-stdlib-jre7-1.2.31.jar: kotlin-stdlib-jre7 is deprecated. Please use kotlin-stdlib-jdk7 instead
and one more message directed me to the directory :
.gradle / caches / modules-2 / files-2.1 / org directory. Jetbrains.kotlin / kotlin-stdlib-jre7 / and xxxxxxx
I'm really confused about this problem, even though I don't apply jre in my app.gradle, I try to delete the files and then there will be more and more.
this is my app.gradle file :
apply plugin: 'com.android.application'
apply plugin: 'kotlin-android-extensions'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-kapt'
android {
compileSdkVersion 28
defaultConfig {
applicationId "com.mhdfdl41.android.gotoclinic"
minSdkVersion 16
targetSdkVersion 28
versionCode 1
versionName "1.0"
multiDexEnabled true
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
sourceSets { main { assets.srcDirs = ['src/main/assets', 'src/main/assets/'] } }
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'androidx.appcompat:appcompat:1.1.0-alpha01'
androidTestImplementation "android.arch.core:core-testing:1.1.1"
implementation 'com.google.android.material:material:1.1.0-alpha03'
implementation 'com.readystatesoftware.sqliteasset:sqliteassethelper:2.0.1'
implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
implementation 'androidx.cardview:cardview:1.0.0'
implementation 'com.github.smarteist:autoimageslider:1.1.1'
implementation 'com.github.bumptech.glide:glide:4.8.0'
implementation 'androidx.cardview:cardview:1.0.0'
implementation 'com.github.smarteist:autoimageslider:1.1.1'
implementation 'com.github.bumptech.glide:glide:4.8.0'
implementation 'com.github.humazed:RoomAsset:1.0.3'
implementation 'de.hdodenhof:circleimageview:2.2.0'
implementation 'com.basgeekball:awesome-validation:1.3'
// AAC (Room, Live Data, View Model)
implementation "android.arch.persistence.room:runtime:1.1.1"
kapt "android.arch.persistence.room:compiler:1.1.1"
kapt "android.arch.lifecycle:compiler:1.1.1"
// ViewModel and LiveData
androidTestImplementation "android.arch.persistence.room:testing:1.1.1"
implementation "android.arch.lifecycle:extensions:$lifecycle_version"
//room asset access databases
implementation 'com.github.humazed:RoomAsset:1.0.3'
testImplementation 'junit:junit:4.12'
androidTestImplementation "androidx.test.ext:junit:1.1.0"
androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'
// implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
//anko
implementation "org.jetbrains.anko:anko:$anko_version"
}
configurations {
all*.exclude group: 'com.google.guava', module: 'listenablefuture'
}
repositories{
mavenCentral()
}
what made this happen?
This is how the root project's build.gradle should look alike. when I add kotlin-stdlib-jdk7, it still complains about a version mismatch; only kotlin-stdlib (without the postfix) works for me.
buildscript {
ext.kotlinVersion = "1.3.30"
repositories {
google()
jcenter()
}
dependencies {
classpath "com.android.tools.build:gradle:3.4.0"
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:${kotlinVersion}"
}
}
plugins {
id "org.jetbrains.kotlin.jvm" version "1.3.30"
}
repositories {
mavenCentral()
}
dependencies {
implementation "org.jetbrains.kotlin:kotlin-stdlib:${kotlinVersion}"
}
...

Failed to resolve: androidx.lifecycle:lifecycle-viewmodel-ktx:1.1.1

I'm trying to use the new Navigation Architecture Component for android and I'm getting the error
Failed to resolve: androidx.lifecycle:lifecycle-viewmodel-ktx:1.1.1
when I'm defining the lifecycle_version to "1.1.1"
I'm basically just copying and pasting what is in the documentation so I'm running out of ideas of what is wrong in here :(
apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
apply plugin: 'kotlin-kapt'
android {
compileSdkVersion 26
defaultConfig {
applicationId "com.mobile.codgin.newnavigation"
minSdkVersion 21
targetSdkVersion 26
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
def lifecycle_version = "1.1.1"
// ViewModel and LiveData
implementation "android.arch.lifecycle:extensions:$lifecycle_version"
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation"org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
implementation 'com.android.support:appcompat-v7:26.1.0'
implementation 'com.android.support.constraint:constraint-layout:1.1.0'
implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:$lifecycle_version"
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
}
try replace
implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:$lifecycle_version"
with this
//https://mvnrepository.com/artifact/androidx.lifecycle/lifecycle-viewmodel-ktx
implementation group: 'androidx.lifecycle', name:'lifecycle-viewmodel-ktx', version: '2.0.0-alpha1'
then sync again.
You can have a look here :
https://mvnrepository.com/artifact/androidx.lifecycle/lifecycle-viewmodel-ktx/2.0.0-alpha1
it seems to be that the repository was emptied somehow. Hence, you can not download it from the repository.
When it shows you this error add this code to section build.gradle
configurations {
all {
exclude group: 'androidx.lifecycle', module: 'lifecycle-viewmodel-ktx'
}
}

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