Develop Reference

Execution failed for task ':app:checkReleaseDuplicateClasses'

I have a build issue suddenly in my react-native android build. The surprise is it was built in the morning fine, didn't make any changes but, suddenly, it's failing. here's what I get as the error. any idea why this happens? Did saw some similar issues in stack and GitHub also, but any fixes suggested in those didn't work for me so far. seems those stack-traces are somewhat different to mine.
* What went wrong:
Execution failed for task ':app:checkReleaseDuplicateClasses'.
> A failure occurred while executing com.android.build.gradle.internal.tasks.CheckDuplicatesRunnable
> Duplicate class kotlin.collections.jdk8.CollectionsJDK8Kt found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk8-1.7.10 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.7.10)
Duplicate class kotlin.internal.jdk7.JDK7PlatformImplementations found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk7-1.7.10 (org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.7.10)
Duplicate class kotlin.internal.jdk7.JDK7PlatformImplementations$ReflectSdkVersion found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk7-1.7.10 (org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.7.10)
Duplicate class kotlin.internal.jdk8.JDK8PlatformImplementations found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk8-1.7.10 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.7.10)
Duplicate class kotlin.internal.jdk8.JDK8PlatformImplementations$ReflectSdkVersion found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk8-1.7.10 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.7.10)
Duplicate class kotlin.io.path.ExperimentalPathApi found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk7-1.7.10 (org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.7.10)
Duplicate class kotlin.io.path.PathRelativizer found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk7-1.7.10 (org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.7.10)
Duplicate class kotlin.io.path.PathsKt found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk7-1.7.10 (org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.7.10)
Duplicate class kotlin.io.path.PathsKt__PathReadWriteKt found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk7-1.7.10 (org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.7.10)
Duplicate class kotlin.io.path.PathsKt__PathUtilsKt found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk7-1.7.10 (org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.7.10)
Duplicate class kotlin.jdk7.AutoCloseableKt found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk7-1.7.10 (org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.7.10)
Duplicate class kotlin.jvm.jdk8.JvmRepeatableKt found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk8-1.7.10 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.7.10)
Duplicate class kotlin.jvm.optionals.OptionalsKt found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk8-1.7.10 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.7.10)
Duplicate class kotlin.random.jdk8.PlatformThreadLocalRandom found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk8-1.7.10 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.7.10)
Duplicate class kotlin.streams.jdk8.StreamsKt found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk8-1.7.10 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.7.10)
Duplicate class kotlin.streams.jdk8.StreamsKt$asSequence$$inlined$Sequence$1 found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk8-1.7.10 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.7.10)
Duplicate class kotlin.streams.jdk8.StreamsKt$asSequence$$inlined$Sequence$2 found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk8-1.7.10 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.7.10)
Duplicate class kotlin.streams.jdk8.StreamsKt$asSequence$$inlined$Sequence$3 found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk8-1.7.10 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.7.10)
Duplicate class kotlin.streams.jdk8.StreamsKt$asSequence$$inlined$Sequence$4 found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk8-1.7.10 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.7.10)
Duplicate class kotlin.text.jdk8.RegexExtensionsJDK8Kt found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk8-1.7.10 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.7.10)
Duplicate class kotlin.time.jdk8.DurationConversionsJDK8Kt found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk8-1.7.10 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.7.10)
Go to the documentation to learn how to Fix dependency resolution errors.
env
openjdk 19.0.1
gradel version 7.6
here's my build.gradle file
// import org.apache.tools.ant.taskdefs.condition.Os
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
ext {
buildToolsVersion = "31.0.0"
minSdkVersion = 21
compileSdkVersion = 33
targetSdkVersion = 33
kotlin_version = '1.7.10'
if (System.properties['os.arch'] == "aarch64") {
// For M1 Users we need to use the NDK 24 which added support for aarch64
ndkVersion = "24.0.8215888"
} else {
// Otherwise we default to the side-by-side NDK version from AGP.
ndkVersion = "21.4.7075529"
}
}
repositories {
google()
mavenCentral()
}
dependencies {
classpath("com.android.tools.build:gradle:7.1.1")
classpath("com.facebook.react:react-native-gradle-plugin")
classpath("de.undercouch:gradle-download-task:5.0.1")
classpath("com.google.gms:google-services:4.3.3")
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
exclusiveContent {
// We get React Native's Android binaries exclusively through npm,
// from a local Maven repo inside node_modules/react-native/.
// (The use of exclusiveContent prevents looking elsewhere like Maven Central
// and potentially getting a wrong version.)
filter {
includeGroup "com.facebook.react"
}
forRepository {
maven {
url "$rootDir/../node_modules/react-native/android"
}
}
}
maven {
// All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
url("$rootDir/../node_modules/react-native/android")
}
maven {
// Android JSC is installed from npm
url("$rootDir/../node_modules/jsc-android/dist")
}
mavenCentral {
// We don't want to fetch react-native from Maven Central as there are
// older versions over there.
content {
excludeGroup "com.facebook.react"
}
}
google()
maven { url 'https://www.jitpack.io' }
}
}

This is due to a dependency update. Some lib you're using had a loose dependency specified and installs kotlin 1.8.0 dependencies. It was the case for me here.
You can fix it by adding kotlinVersion in your build.gradle config:
buildscript {
ext {
buildToolsVersion = "32.0.0"
minSdkVersion = 21
compileSdkVersion = 33
targetSdkVersion = 32
androidXBrowser = "1.4.0"
kotlinVersion = "1.8.0"
}
...
}

There 2 things to check and update.
1. Update kotlinVersion
buildscript {
ext {
kotlinVersion = "1.8.0"
}
}
2. Update org.jetbrains.kotlin.android
If org.jetbrains.kotlin.android is still 1.7.* then it does not works.
plugins {
id 'org.jetbrains.kotlin.android' version '1.8.0' apply false
}

I can't believe this, but upgrading Material 3 from version 1.1.0-alpha04 to version 1.1.0-alpha05 caused the issue in my case:
// Material 3 Lib - this version is causing the problem
implementation("androidx.compose.material3:material3:1.1.0-alpha05")
Just downgrade to alpha04 for now.
// downgrade to this version
implementation("androidx.compose.material3:material3:1.1.0-alpha04")
I am using Kotlin DSL and I found upgrading Kotlin version from 1.7.20 to 1.8.0 doesn't solve the issue. Kotlin Version 1.8.0 is not compatible with kotlinCompilerExtensionVersion = "1.3.2"

Implementation of library giving duplicate error

im trying to implement the 'com.github.barteksc:android-pdf-viewer:2.8.2' into my project and i am able to sync the gradle files but when i try to start the app it gives me this error
Duplicate class android.support.v4.app.INotificationSideChannel found in modules core-1.5.0-
runtime (androidx.core:core:1.5.0) and support-compat-25.3.1-runtime (com.android.support:support-compat:25.3.1)
Duplicate class android.support.v4.app.INotificationSideChannel$Stub found in modules core-1.5.0-runtime (androidx.core:core:1.5.0) and support-compat-25.3.1-runtime (com.android.support:support-compat:25.3.1)
Duplicate class android.support.v4.app.INotificationSideChannel$Stub$Proxy found in modules core-1.5.0-runtime (androidx.core:core:1.5.0) and support-compat-25.3.1-runtime (com.android.support:support-compat:25.3.1)
Duplicate class android.support.v4.os.IResultReceiver found in modules core-1.5.0-runtime (androidx.core:core:1.5.0) and support-compat-25.3.1-runtime (com.android.support:support-compat:25.3.1)
Duplicate class android.support.v4.os.IResultReceiver$Stub found in modules core-1.5.0-runtime (androidx.core:core:1.5.0) and support-compat-25.3.1-runtime (com.android.support:support-compat:25.3.1)
Duplicate class android.support.v4.os.IResultReceiver$Stub$Proxy found in modules core-1.5.0-runtime (androidx.core:core:1.5.0) and support-compat-25.3.1-runtime (com.android.support:support-compat:25.3.1)
Duplicate class android.support.v4.os.ResultReceiver found in modules core-1.5.0-runtime (androidx.core:core:1.5.0) and support-compat-25.3.1-runtime (com.android.support:support-compat:25.3.1)
Duplicate class android.support.v4.os.ResultReceiver$1 found in modules core-1.5.0-runtime (androidx.core:core:1.5.0) and support-compat-25.3.1-runtime (com.android.support:support-compat:25.3.1)
Duplicate class android.support.v4.os.ResultReceiver$MyResultReceiver found in modules core-1.5.0-runtime (androidx.core:core:1.5.0) and support-compat-25.3.1-runtime (com.android.support:support-compat:25.3.1)
Duplicate class android.support.v4.os.ResultReceiver$MyRunnable found in modules core-1.5.0-runtime (androidx.core:core:1.5.0) and support-compat-25.3.1-runtime (com.android.support:support-compat:25.3.1)
Go to the documentation to learn how to Fix dependency resolution errors
i do not get why i will post my build.gradle below
plugins {
id 'com.android.application'
id 'kotlin-android'
}
android {
compileSdkVersion 30
buildToolsVersion "30.0.3"
defaultConfig {
applicationId "com.jenson.resumeapp"
minSdkVersion 19
targetSdkVersion 30
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
kotlinOptions {
jvmTarget = '1.8'
}
}
dependencies {
implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
implementation 'androidx.core:core-ktx:1.5.0'
implementation 'androidx.appcompat:appcompat:1.3.0'
implementation 'com.google.android.material:material:1.3.0'
implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
testImplementation 'junit:junit:4.+'
androidTestImplementation 'androidx.test.ext:junit:1.1.2'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
}
i do not seem to find anything on this that works?

Add these lines in gradle.properties file
android.useAndroidX = true
android.enableJetifier = true

I was running into the same issue when I was implementing :
com.github.shts:StoriesProgressView:3.0.0
The problem, in my case at least, was that StoriesProgessView dependency was retrieving the same class from com.android.support:support-compat which is now already present in the androidx core package, causing the conflict to rise up.
This is how I went about it:
By checking out the Dependency tree, I found out that the StoriesProgressView was bringing in these dependencies, to remove those dependencies, I added the exlusion rule to the dependency like so:
implementation ('com.github.shts:StoriesProgressView:3.0.0') {
exclude group: "com.android.support", module: "support-compat"
exclude group: "com.android.support", module: "support-media-compat"
}
this stopped pulling the classes from the old package.
In your case though, there doesn't seem to be any third-party dependency so probably following Malik Ali's answer should suffice. If it doesn't, give this one a go!

Add this line in gradle.properties
android.enableJetifier = true

Can't resolve "Duplicate Class com.google.android.gms.internal.vision.zzdt found in module" error,

I saw a similar question asked in here but the solution didn't help me and the error is still same. I tried to make new project, but the error is still the same and I don't what's bugging! Please help me with this error, I can't deploy my app just because of this error.
Here is the error log:
Duplicate class com.google.android.gms.internal.vision.zzdt found in modules jetified-play-services-vision-common-19.1.0-runtime (com.google.android.gms:play-services-vision-common:19.1.0) and jetified-play-services-vision-image-labeling-internal-16.0.0-runtime (com.google.android.gms:play-services-vision-image-labeling-internal:16.0.0)
Duplicate class com.google.android.gms.internal.vision.zze found in modules jetified-play-services-vision-20.0.0-runtime (com.google.android.gms:play-services-vision:20.0.0) and jetified-play-services-vision-common-19.1.0-runtime (com.google.android.gms:play-services-vision-common:19.1.0)
Duplicate class com.google.android.gms.internal.vision.zzf found in modules jetified-play-services-vision-20.0.0-runtime (com.google.android.gms:play-services-vision:20.0.0) and jetified-play-services-vision-common-19.1.0-runtime (com.google.android.gms:play-services-vision-common:19.1.0)
Duplicate class com.google.android.gms.internal.vision.zzg found in modules jetified-play-services-vision-20.0.0-runtime (com.google.android.gms:play-services-vision:20.0.0) and jetified-play-services-vision-common-19.1.0-runtime (com.google.android.gms:play-services-vision-common:19.1.0)
Duplicate class com.google.android.gms.internal.vision.zzh found in modules jetified-play-services-vision-20.0.0-runtime (com.google.android.gms:play-services-vision:20.0.0) and jetified-play-services-vision-common-19.1.0-runtime (com.google.android.gms:play-services-vision-common:19.1.0)
Duplicate class com.google.android.gms.internal.vision.zzi found in modules jetified-play-services-vision-20.0.0-runtime (com.google.android.gms:play-services-vision:20.0.0) and jetified-play-services-vision-common-19.1.0-runtime (com.google.android.gms:play-services-vision-common:19.1.0)
Duplicate class com.google.android.gms.internal.vision.zzs found in modules jetified-play-services-vision-common-19.1.0-runtime (com.google.android.gms:play-services-vision-common:19.1.0) and jetified-play-services-vision-image-labeling-internal-16.0.0-runtime (com.google.android.gms:play-services-vision-image-labeling-internal:16.0.0)
Duplicate class com.google.android.gms.internal.vision.zzt found in modules jetified-play-services-vision-common-19.1.0-runtime (com.google.android.gms:play-services-vision-common:19.1.0) and jetified-play-services-vision-image-labeling-internal-16.0.0-runtime (com.google.android.gms:play-services-vision-image-labeling-internal:16.0.0)
Duplicate class com.google.android.gms.internal.vision.zzu found in modules jetified-play-services-vision-common-19.1.0-runtime (com.google.android.gms:play-services-vision-common:19.1.0) and jetified-play-services-vision-image-labeling-internal-16.0.0-runtime (com.google.android.gms:play-services-vision-image-labeling-internal:16.0.0)
Duplicate class com.google.android.gms.internal.vision.zzv found in modules jetified-play-services-vision-20.0.0-runtime (com.google.android.gms:play-services-vision:20.0.0) and jetified-play-services-vision-common-19.1.0-runtime (com.google.android.gms:play-services-vision-common:19.1.0)
Duplicate class com.google.android.gms.internal.vision.zzw found in modules jetified-play-services-vision-20.0.0-runtime (com.google.android.gms:play-services-vision:20.0.0) and jetified-play-services-vision-common-19.1.0-runtime (com.google.android.gms:play-services-vision-common:19.1.0)
Go to the documentation to learn how to Fix dependency resolution errors.
Here is my build.gradle(:app) file
plugins {
id 'com.android.application'
}
android {
compileSdkVersion 30
buildToolsVersion "30.0.3"
defaultConfig {
applicationId "com.example.finalapp"
minSdkVersion 21
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
}
}
dependencies {
implementation 'androidx.appcompat:appcompat:1.2.0'
implementation 'com.google.android.material:material:1.2.1'
implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
implementation 'com.google.firebase:firebase-ml-vision:24.1.0'
implementation 'com.google.firebase:firebase-ml-vision-image-label-model:20.0.2'
testImplementation 'junit:junit:4.13.1'
androidTestImplementation 'androidx.test.ext:junit:1.1.2'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
}
and here is my build.gradle(Final App) file
// 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:4.1.1"
// 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
}

Lower the version of dependency from 24.1.0 to 24.0.0
implementation 'com.google.firebase:firebase-ml-vision:24.0.0'

React Native :app:checkDebugDuplicateClasses FAILED

I'm trying to implement a Trustmanager for websocket connections in a React Native project by directly adopting the code from this gist. It requires the okhttp-ws module to run.
But, it fails at :app:checkDebugDuplicateClasses
Execution failed for task ':app:checkDebugDuplicateClasses'.
> 1 exception was raised by workers:
java.lang.RuntimeException: java.lang.RuntimeException:
Duplicate class okhttp3.internal.ws.RealWebSocket found in modules okhttp-3.14.1.jar (com.squareup.okhttp3:okhttp:3.14.1) and okhttp-ws-3.4.2.jar (com.squareup.okhttp3:okhttp-ws:3.4.2)
Duplicate class okhttp3.internal.ws.RealWebSocket$1 found in modules okhttp-3.14.1.jar (com.squareup.okhttp3:okhttp:3.14.1) and okhttp-ws-3.4.2.jar (com.squareup.okhttp3:okhttp-ws:3.4.2)
Duplicate class okhttp3.internal.ws.WebSocketProtocol found in modules okhttp-3.14.1.jar (com.squareup.okhttp3:okhttp:3.14.1) and okhttp-ws-3.4.2.jar (com.squareup.okhttp3:okhttp-ws:3.4.2)
Duplicate class okhttp3.internal.ws.WebSocketReader found in modules okhttp-3.14.1.jar (com.squareup.okhttp3:okhttp:3.14.1) and okhttp-ws-3.4.2.jar (com.squareup.okhttp3:okhttp-ws:3.4.2)
Duplicate class okhttp3.internal.ws.WebSocketReader$FrameCallback found in modules okhttp-3.14.1.jar (com.squareup.okhttp3:okhttp:3.14.1) and okhttp-ws-3.4.2.jar (com.squareup.okhttp3:okhttp-ws:3.4.2)
Duplicate class okhttp3.internal.ws.WebSocketWriter found in modules okhttp-3.14.1.jar (com.squareup.okhttp3:okhttp:3.14.1) and okhttp-ws-3.4.2.jar (com.squareup.okhttp3:okhttp-ws:3.4.2)
Duplicate class okhttp3.internal.ws.WebSocketWriter$FrameSink found in modules okhttp-3.14.1.jar (com.squareup.okhttp3:okhttp:3.14.1) and okhttp-ws-3.4.2.jar (com.squareup.okhttp3:okhttp-ws:3.4.2)
So, I excluded okhttp from app/build.gradle
dependencies {
implementation fileTree(dir: "libs", include: ["*.jar"])
implementation "com.facebook.react:react-native:+" // From node_modules
implementation "androidx.swiperefreshlayout:swiperefreshlayout:1.0.0"
// compile the ws module
implementation('com.squareup.okhttp3:okhttp-ws:+'){
// exclude the conflicting module
exclude group:'com.squareup.okhttp3', module:'okhttp'
}
debugImplementation("com.facebook.flipper:flipper:${FLIPPER_VERSION}") {
exclude group:'com.facebook.fbjni'
}
debugImplementation("com.facebook.flipper:flipper-network-plugin:${FLIPPER_VERSION}") {
exclude group:'com.facebook.flipper'
// interestingly, it's been excluded here too
exclude group:'com.squareup.okhttp3', module:'okhttp'
}
debugImplementation("com.facebook.flipper:flipper-fresco-plugin:${FLIPPER_VERSION}") {
exclude group:'com.facebook.flipper'
}
if (enableHermes) {
def hermesPath = "../../node_modules/hermes-engine/android/";
debugImplementation files(hermesPath + "hermes-debug.aar")
releaseImplementation files(hermesPath + "hermes-release.aar")
} else {
implementation jscFlavor
}
}
Still, I get the same error. So, I visited the developer docs link that the error shows and tried searching for the Class okhttp3.internal.ws.RealWebSocket in Android Studio. But it only shows some files from cache folder containing the troublesome Class, both of okhttp and ws modules, which I can't delete these files. For other classes, it just shows files from the okhttp module only, which I can't delete either. Is there a workaround to this? What am I missing?

WebSocket is now part of the core library. https://square.github.io/okhttp/4.x/okhttp/okhttp3/-web-socket/
So you should upgrade to 4.9.0 and stop depending on okhttp-ws, or revert to 3.12.12 (which is a supported legacy branch).
There is a sample here of how to use the WebSocket support in OkHttp https://github.com/square/okhttp/blob/master/samples/slack/src/main/java/okhttp3/slack/SlackApi.java
Or use the built in react-native support https://reactnative.dev/docs/network

Duplicate class in protobuf lite and protobuf java

I'm using grpc with protobuf lite in android implementation. but protobuf lite doesn't have google time stamp, and my protos has import "google/protobuf/timestamp.proto". so i added implementation 'com.google.protobuf:protobuf-java:3.7.1' to gradle that contains google time stamp. but after that code compilaition has errors. such as :Duplicate class com.google.protobuf.AbstractMessageLite found in modules protobuf-java-3.7.1.jar (com.google.protobuf:protobuf-java:3.7.1) and protobuf-lite-3.0.1.jar (com.google.protobuf:protobuf-lite:3.0.1).
any idea to fix this would be appreciated.
apply plugin: 'com.android.application'
apply plugin: 'com.google.protobuf'
android {
compileSdkVersion 28
buildToolsVersion "29.0.0"
defaultConfig {
minSdkVersion 21
targetSdkVersion 28
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
buildTypes {
debug {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
sourceSets {
main {
proto {
srcDir 'src/main'
}
java {
srcDir 'src/main'
}
}
}
}
protobuf {
protoc { artifact = 'com.google.protobuf:protoc:3.7.1' }
plugins {
javalite { artifact = "com.google.protobuf:protoc-gen-javalite:3.0.0" }
grpc {
artifact = 'io.grpc:protoc-gen-grpc-java:1.20.0' // CURRENT_GRPC_VERSION
}
}
generateProtoTasks {
all().each { task ->
task.plugins {
javalite {}
grpc { // Options added to --grpc_out
option 'lite'
}
}
}
}
}
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'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'androidx.test:runner:1.2.0'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
implementation 'com.google.android.material:material:1.0.0'
// You need to build grpc-java to obtain these libraries below.
implementation 'io.grpc:grpc-okhttp:1.20.0'
implementation 'io.grpc:grpc-protobuf-lite:1.22.1'
implementation 'io.grpc:grpc-stub:1.20.0'
implementation 'javax.annotation:javax.annotation-api:1.3.2'
implementation 'com.google.protobuf:protobuf-java:3.7.1'
}
given error is:
Duplicate class com.google.protobuf.AbstractMessageLite found in modules protobuf-java-3.7.1.jar (com.google.protobuf:protobuf-java:3.7.1) and protobuf-lite-3.0.1.jar (com.google.protobuf:protobuf-lite:3.0.1)
Duplicate class com.google.protobuf.AbstractMessageLite$Builder found in modules protobuf-java-3.7.1.jar (com.google.protobuf:protobuf-java:3.7.1) and protobuf-lite-3.0.1.jar (com.google.protobuf:protobuf-lite:3.0.1)
Duplicate class com.google.protobuf.AbstractMessageLite$Builder$LimitedInputStream found in modules protobuf-java-3.7.1.jar (com.google.protobuf:protobuf-java:3.7.1) and protobuf-lite-3.0.1.jar (com.google.protobuf:protobuf-lite:3.0.1)
Duplicate class com.google.protobuf.AbstractParser found in modules protobuf-java-3.7.1.jar (com.google.protobuf:protobuf-java:3.7.1) and protobuf-lite-3.0.1.jar (com.google.protobuf:protobuf-lite:3.0.1)
Duplicate class com.google.protobuf.AbstractProtobufList found in modules protobuf-java-3.7.1.jar (com.google.protobuf:protobuf-java:3.7.1) and protobuf-lite-3.0.1.jar (com.google.protobuf:protobuf-lite:3.0.1)
Duplicate class com.google.protobuf.BooleanArrayList found in modules protobuf-java-3.7.1.jar (com.google.protobuf:protobuf-java:3.7.1) and protobuf-lite-3.0.1.jar (com.google.protobuf:protobuf-lite:3.0.1)
Duplicate class com.google.protobuf.ByteBufferWriter found in modules protobuf-java-3.7.1.jar (com.google.protobuf:protobuf-java:3.7.1) and protobuf-lite-3.0.1.jar (com.google.protobuf:protobuf-lite:3.0.1)
Duplicate class com.google.protobuf.ByteOutput found in modules protobuf-java-3.7.1.jar (com.google.protobuf:protobuf-java:3.7.1) and protobuf-lite-3.0.1.jar (com.google.protobuf:protobuf-lite:3.0.1)
Duplicate class com.google.protobuf.ByteString found in modules protobuf-java-3.7.1.jar (com.google.protobuf:protobuf-java:3.7.1) and protobuf-lite-3.0.1.jar (com.google.protobuf:protobuf-lite:3.0.1)
Duplicate class com.google.protobuf.ByteString$1 found in modules protobuf-java-3.7.1.jar (com.google.protobuf:protobuf-java:3.7.1) and protobuf-lite-3.0.1.jar (com.google.protobuf:protobuf-lite:3.0.1)

The missing classes is a known issue. Full proto and lite proto can't be mixed; they use different generated code. Do not depend on protobuf-java as an implementation dependency, but as a protobuf dependency which will cause gradle-protobuf-plugin to generate code for the .protos.
dependencies {
...
protobuf 'com.google.protobuf:protobuf-java:3.7.1'
}
Note that this solution only really works for an application. If you are a library, it is dangerous because users of your library may then see multiple copied of the generated code for the well-known protos.

It happened to me because I added this dependency:
implementation 'com.google.firebase:firebase-firestore-ktx:21.5.0'
There was a problem with the latest version of firestore. Use version 21.4.2 instead of 21.5.0 as of August 2020.

In my case this happened because of mixed package dependencies specifically barcode_scan
This error means that you are importing two packages that use Protobuf for your project, one of them has a distribution that's conflicting with the other.
If you encountered this problem on Flutter, you can reconsider the version number of your dependencies in pubspec.yaml, and replace "any" by an exact version number.
For example, under "dependencies:" change:
barcode_scan: any
To:
barcode_scan: ^2.0.0
I hope I helped.