Develop Reference

Unable to merge dex error when building my android project

I am trying to build my android project and getting the error "Unable to merge dex"
I tried different options that are mentioned in other posts. Some of them are
Remove unused libraries
Add multidexenabled=true to gradle file
Add implementation 'com.android.support:multidex:1.0.3' to gradle file
Clean , delete .gradle folder and rebuild
The problem is still present and am not sure what is wrong. Kindly please share your thoughts.
Error:Execution failed for task
':app:transformDexArchiveWithExternalLibsDexMergerForDebug'.
> java.lang.RuntimeException:
com.android.builder.dexing.DexArchiveMergerException: Unable to merge dex
My app/build.gradle file
apply plugin: 'com.android.application'
android {
compileSdkVersion 27
defaultConfig {
applicationId "app.resta.com.restaurantapp"
minSdkVersion 23
targetSdkVersion 27
versionCode 1
versionName "1.0"
multiDexEnabled true
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
compileOptions {
targetCompatibility 1.7
sourceCompatibility 1.7
}
}
repositories {
maven { url "https://jitpack.io" }
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
testCompile 'junit:junit:4.12'
implementation 'com.android.support:appcompat-v7:27.0.2'
implementation 'com.android.support:design:27.0.2'
implementation 'com.android.support:recyclerview-v7:27.0.2'
compile 'com.github.PhilJay:MPAndroidChart:v3.0.2'
implementation 'com.google.firebase:firebase-core:16.0.6'
implementation 'com.google.firebase:firebase-firestore:17.1.5'
implementation 'com.google.firebase:firebase-storage:16.0.5'
implementation 'com.firebaseui:firebase-ui-storage:4.1.0'
annotationProcessor 'com.github.bumptech.glide:compiler:4.8.0'
implementation 'com.android.support:multidex:1.0.3'
}
apply plugin: 'com.google.gms.google-services'

with support libraries 27.1.1 it builds:
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.android.support:appcompat-v7:27.1.1'
implementation 'com.android.support:design:27.1.1'
implementation 'com.android.support:recyclerview-v7:27.1.1'
implementation 'com.github.PhilJay:MPAndroidChart:v3.0.2'
implementation 'com.google.firebase:firebase-core:16.0.6'
implementation 'com.google.firebase:firebase-firestore:17.1.5'
implementation 'com.google.firebase:firebase-storage:16.0.5'
implementation 'com.firebaseui:firebase-ui-storage:4.1.0'
implementation 'com.android.support:multidex:1.0.3'
annotationProcessor 'com.github.bumptech.glide:compiler:4.8.0'
testImplementation 'junit:junit:4.12'
}
if not, add the whole DexArchiveMergerException and not only that notice, which tells nothing.

Android Error while merging dex archives

After updating my android studio and build tool version get this error.I have tried all the solution available for this problem over internet , but not successful
don't know why this is happening ??
Android studio version: 3.1
Gradle version": 4.4
Gradle plugin : 3.1
org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':app:transformDexArchiveWithExternalLibsDexMergerForDebug'.
My build.gradle file
apply plugin: 'com.android.application'
android {
compileSdkVersion 27
defaultConfig {
applicationId "com.abc.abc"
minSdkVersion 21
targetSdkVersion 27
versionCode 1
versionName "1.0"
multiDexEnabled true //Tryed this but not worked
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
repositories {
maven {
url 'https://github.com/jitsi/jitsi-maven-repository/raw/master/releases'
}
// maven { url "https://dl.bintray.com/michelelacorte/maven/" }
mavenCentral()
}
configurations {
all*.exclude module: 'support-v4'
}
}
dependencies {
implementation fileTree(include: ['*.jar'], dir: 'libs')
implementation 'com.android.support:appcompat-v7:27.1.0'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.1'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
implementation 'com.android.support.constraint:constraint-layout:1.0.2'
implementation 'com.android.support:design:27.1.0'
implementation 'com.android.support:cardview-v7:27.1.0'
implementation 'com.android.support:support-fragment:27.1.0'
// multipart entity
implementation('org.apache.httpcomponents:httpmime:4.+') {
exclude module: "httpclient"
}
implementation 'com.oguzdev:CircularFloatingActionMenu:1.0.2'
// implementation 'com.wonderkiln:camerakit:0.13.0'
implementation 'com.getbase:floatingactionbutton:1.10.1'
implementation 'org.jitsi.react:jitsi-meet-sdk:1.9.0'
// compile 'com.google.code.gson:gson:2.2.4'
// compile 'com.android.support:support-emoji:26.0.1'
implementation 'com.nostra13.universalimageloader:universal-image-loader:1.9.5'
implementation 'com.android.volley:volley:1.1.0'
implementation 'com.miguelcatalan:materialsearchview:1.4.0'
implementation 'com.yalantis:ucrop:2.2.0-native'
implementation 'com.pnikosis:materialish-progress:1.7'
implementation 'org.igniterealtime.smack:smack-android-extensions:4.2.0'
implementation 'org.igniterealtime.smack:smack-experimental:4.2.0'
implementation 'org.igniterealtime.smack:smack-tcp:4.2.0'
implementation 'org.apache.commons:commons-lang3:3.4'
implementation 'org.jbundle.util.osgi.wrapped:org.jbundle.util.osgi.wrapped.org.apache.http.client:4.1.2'
implementation 'com.googlecode.libphonenumber:libphonenumber:7.0.4'
implementation 'org.greenrobot:eventbus:3.1.1'
implementation 'com.google.android.gms:play-services-places:11.8.0'
implementation 'com.squareup.picasso:picasso:2.5.2'
implementation 'com.google.android.gms:play-services-maps:11.8.0'
implementation 'com.github.bumptech.glide:glide:4.6.1'
annotationProcessor 'com.github.bumptech.glide:compiler:4.6.1'
implementation 'com.eyalbira.loadingdots:loading-dots:1.0.2'
implementation 'de.hdodenhof:circleimageview:2.1.0'
// implementation 'com.google.android.exoplayer:exoplayer:2.7.1'
// compile 'it.michelelacorte.swipeablecard:library:2.3.0#aar'{
// exclude module: 'appcompat-v7'
// exclude group: 'com.android.support'
// }
// BUTTER KNIFE
implementation('com.jakewharton:butterknife:8.5.1') {
exclude module: 'appcompat-v7'
exclude group: 'com.android.support'
}
annotationProcessor 'com.jakewharton:butterknife-compiler:8.5.1'
// implementation project(':libemoji')
implementation 'com.android.support:support-v13:27.1.0'
}
It's waste almost my 10 days...
most confusing error ever encounter..

This error happens if your code has two different modules of google-play-services or support-v4 which are using different versions of these libraries.
Check the dependencies of the libraries you are using in your project or use
gradle app:dependencies
to see dependency tree of your project and then when you find out which libraries is used with different version, add it to your dependencies with correct version. For example if google-play-services:location:11.2.0 appeared in your dependencies, replace it with google-play-services:location:11.8.0
Usually you will see a warning or error message in your build.gradle file (i.e. one dependency will be marked with red underline showing it cause version mismatch) in such cases.

In my case, project and module's package name is same. When running in debug mode, everything is okey. But when i want to build release mode. I got this error. Renaming package name is the solution for me.

How to Solve Error:Unable to merge dex

I'm following an Tutorial from youtube and now I ran into an problem. When I sync the build File. Build Completes without any Error but when I run app connecting my Device it give me error of
Error:Execution failed for task ':app:transformDexArchiveWithExternalLibsDexMergerForDebug'.
java.lang.RuntimeException: java.lang.RuntimeException: com.android.builder.dexing.DexArchiveMergerException: Unable to merge dex
But when I remove the line
implementation 'com.theartofdev.edmodo:android-image-cropper:2.6.+'
It works Fine, but I need this library. So How can I resolve it.
My app build.gradle file is
apply plugin: 'com.android.application'
android {
compileSdkVersion 26
buildToolsVersion "26.0.2"
defaultConfig {
applicationId "com.nepalpolice.cdp"
minSdkVersion 21
targetSdkVersion 26
versionCode 2
versionName "2.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
implementation 'com.google.firebase:firebase-auth:11.0.4'
implementation 'com.google.firebase:firebase-storage:11.0.4'
compile fileTree(include: ['*.jar'], dir: 'libs')
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support', module: 'support-annotations'
})
implementation 'com.android.support:appcompat-v7:26.+'
implementation 'com.android.support:support-v4:26.+'
implementation 'com.android.support:cardview-v7:26.+'
implementation 'com.google.firebase:firebase-messaging:11.0.4'
implementation 'com.google.gms:google-services:3.1.0'
implementation 'com.android.support:design:26.+'
implementation 'de.hdodenhof:circleimageview:2.2.0'
implementation 'com.android.support:multidex:1.0.1'
implementation 'com.theartofdev.edmodo:android-image-cropper:2.6.+'
implementation 'com.android.support:gridlayout-v7:26.+'
implementation 'com.android.support.constraint:constraint-layout:1.0.2'
testCompile 'junit:junit:4.12'
implementation 'com.google.android.gms:play-services-maps:11.0.4'
}
apply plugin: 'com.google.gms.google-services'
and inside my lib folder , I have volley jar file.
I tried below solution but it didn't work for me.
One
android {
defaultConfig {
multiDexEnabled true
}
}
and also using
compile 'com.android.support:multidex:1.0.1'
and also I deleted .gradle file and clean and rebuild project but didn't help either.
How can I solve this?? Thanks in advance.

This issue happened to me and the solution was about the release of the image cropper library.
In my case and as well yours, the SDK is 26 so you need to compile 2.5.1 version, not 2.6.0:
implementation 'com.theartofdev.edmodo:android-image-cropper:2.5.1'
Android Image Cropper releases

Double error after start working with ConstraintLayout

After start using constraint layout my app does not build. It shows an error
This thing maybe fixed when I implement each library separately.
This error FOR now doesn't show but and not compile
Now dependencies like this
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.android.support:multidex:1.0.3'
implementation 'com.android.support:support-v4:27.1.0'
implementation 'com.android.support:cardview-v7:27.1.0'
implementation 'com.android.support:animated-vector-drawable:27.1.0'
implementation 'com.android.support:customtabs:27.1.0'
implementation 'com.android.support:appcompat-v7:27.1.0'
implementation 'com.android.support:design:27.1.0'
implementation 'com.android.support.constraint:constraint-layout:1.0.2'
I have done already Clean -> Rebuild also i tried to change libraries from that error manually but no results. Also after all that work with manual working i received new error
My OLD VERSION gradle file code below
apply plugin: 'com.android.application'
android {
compileSdkVersion 27
defaultConfig {
applicationId "com.borisruzanov.myapp"
minSdkVersion 21
targetSdkVersion 27
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
resConfigs "auto"
// Enabling multidex support.
multiDexEnabled true
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.android.support:multidex:1.0.3'
implementation 'com.android.support:support-v4:27.1.0'
implementation 'com.android.support:appcompat-v7:27.1.0'
implementation 'com.android.support:design:27.1.0'
implementation 'com.android.support.constraint:constraint-layout:1.0.2'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.1'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
//General
compile 'com.facebook.android:facebook-android-sdk:4.29.0'
//Firebase
compile 'com.google.firebase:firebase-core:11.8.0'
compile 'com.google.firebase:firebase-database:11.8.0'
compile 'com.google.firebase:firebase-auth:11.8.0'
compile 'com.google.firebase:firebase-storage:11.8.0'
implementation 'com.firebaseui:firebase-ui-auth:3.2.1'
implementation 'com.firebaseui:firebase-ui-database:3.2.1'
compile 'com.google.firebase:firebase-messaging:11.8.0'
compile 'com.google.firebase:firebase-config:11.8.0'
//Images
implementation 'com.github.bumptech.glide:glide:4.6.1'
annotationProcessor 'com.github.bumptech.glide:compiler:4.6.1'
compile 'de.hdodenhof:circleimageview:2.2.0'
compile 'com.theartofdev.edmodo:android-image-cropper:2.6.+'
compile 'com.squareup.picasso:picasso:2.5.2'
compile 'id.zelory:compressor:2.1.0'
//Network
compile 'com.squareup.okhttp:okhttp:2.7.5'
compile 'com.android.support:cardview-v7:27.1.0'
}
apply plugin: 'com.google.gms.google-services'
Figured out that Firebase using support library different version. How I can change it ?

I was facing this from two days and now I solved it today these are the steps
First Try this in your app level gradle file
implementation('com.github.bumptech.glide:glide:4.6.1') {
exclude group: 'com.android.support'
}`
if it does not solve try logging dependencies run this command
./gradlew -q dependencies app:dependencies --configuration compile
in your android studio's Terminal Tab it will log all the dependency tree of your project
then find which libraries are using duplicating dependencies
for example
implementation 'com.github.bumptech.glide:glide:4.6.1' is using duplicate dependencies
so change
implementation 'com.github.bumptech.glide:glide:4.6.1'
to
implementation('com.github.bumptech.glide:glide:4.6.1') {
exclude group: 'com.android.support'
}
Thats It..

No virtual methods newJsonReader(Ljava/io/Reader;) issue when generating build

I have been using retrofit2 along with Gson convertor in many applications. But currently I'm contributing to an existing project and i have used both dependencies. While running the project directly, it works perfectly. But whenever I generate a debug or release build, This error appears in Toast and Api content is not parsed.
Proguard is disabled. Here is the error:
No virtual method
newJsonReader(Ljava/io/Reader;)Lcom/google/gson/stream/JsonReader; in
class Lcom/google/gson/Gson; or its super classes (declaration of
'com.google.gson.Gson' appears in
/data/app/com."packagename"/base.apk:classes2.dex)
App Gradle:
apply plugin: 'com.android.application'
android {
compileSdkVersion 25
buildToolsVersion "26.0.2"
defaultConfig {
applicationId "com.medris.medrisemt.medrishcemt"
minSdkVersion 22
targetSdkVersion 25
versionCode 1
versionName "1.0"
testInstrumentationRunner
"android.support.test.runner.AndroidJUnitRunner"
multiDexEnabled true
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'),
'proguard-rules.pro'
}
}
packagingOptions {
exclude 'META-INF/DEPENDENCIES'
exclude 'META-INF/NOTICE'
exclude 'META-INF/LICENSE'
}
splits {
abi {
enable true
reset()
include 'x86', 'armeabi-v7a'
universalApk true
}
}
}
repositories {
maven { url "https://oss.sonatype.org/content/repositories/snapshots/" }
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation project(':zoomsdk')
implementation project(':zoomcommonlib')
implementation project(':redirectionalgorithm');
androidTestImplementation('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support', module: 'support-annotations'
})
implementation 'io.jsonwebtoken:jjwt:0.9.0'
implementation 'com.squareup.okhttp:okhttp:2.7.5'
implementation 'commons-codec:commons-codec:1.9'
implementation 'com.android.support:appcompat-v7:25.4.0'
implementation 'com.android.support:design:25.4.0'
implementation 'com.android.support:support-v4:25.4.0'
implementation 'com.android.support.constraint:constraint-layout:1.0.2'
implementation 'org.apache.httpcomponents:httpcore:4.4.1'
testImplementation 'junit:junit:4.12'
implementation 'com.michaelpardo:activeandroid:3.1.0-SNAPSHOT'
implementation 'com.squareup.okhttp3:logging-interceptor:3.4.1'
implementation 'com.squareup.okhttp3:okhttp:3.8.0'
implementation 'com.squareup.retrofit2:converter-gson:2.3.0'
implementation 'com.google.code.gson:gson:2.8.0'
implementation 'com.jakewharton:butterknife:8.8.1'
annotationProcessor 'com.jakewharton:butterknife-compiler:8.8.1'
implementation 'com.google.android.gms:play-services-maps:11.8.0'
implementation 'io.nlopez.smartlocation:library:3.3.3'
implementation 'com.google.android.gms:play-services:11.8.0'
}
apply plugin: 'com.google.gms.google-services'
I have searched for relevant answers but no satisfactory results. I have tried to downgrade the gson & retrofit dependencies but no success.
Update
I have updated the Gson & retrofit-convertor dependencies in the gradle code above to the one I was actually using initially. I mistakenly posted the downgraded ones that I tried for testing.

Try this,
I started using the newer versions:
compile 'com.google.code.gson:gson:2.7'
compile 'com.squareup.retrofit2:retrofit:2.2.0'
compile 'com.squareup.retrofit2:converter-gson:2.2.0'
And the error disappeared.
After adding this dependencies in your gradle file, please clean and
rebuild your project.

write this in build.gradle > these are newer versions
compile 'com.google.code.gson:gson:2.7'
compile 'com.squareup.retrofit2:retrofit:2.2.0'
compile 'com.squareup.retrofit2:converter-gson:2.2.0'