Have problems with run Android Studio - java

Thats is my result so, error run code..
Exception in thread "main" java.lang.ClassNotFoundException: pya.marlon.com.pruebas.ExampleRXJava
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:123)
Process finished with exit code 1
Working with some example RXJava maybe have problems with gradle code..
apply plugin: 'com.android.application'
android {
compileSdkVersion 25
buildToolsVersion "25.0.3"
defaultConfig {
applicationId "pya.marlon.com.pruebas"
minSdkVersion 19
targetSdkVersion 25
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
jackOptions{
enabled true
}
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
sourceSets {
main {
java.srcDirs = ['src/main/java', 'src/main/java-gen', '../greendao/classes']
}
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
}
dependencies {
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'
})
compile project(':greendao')
compile 'com.android.support:appcompat-v7:25.3.1'
compile 'com.android.support.constraint:constraint-layout:1.0.0-beta4'
compile 'com.android.support:recyclerview-v7:25.3.1'
compile 'com.android.support:cardview-v7:25.3.1'
compile 'com.jakewharton:butterknife:8.5.1'
compile 'com.github.bumptech.glide:glide:3.8.0'
compile 'de.greenrobot:greendao:1.3.7'
testCompile 'junit:junit:4.12'
annotationProcessor 'com.jakewharton:butterknife-compiler:8.5.1'
compile 'com.android.support:design:25.3.1'
compile 'io.reactivex:rxjava:1.3.0'
}
whats problem with my Android Studio so version is 2.3.2
i working with two modules in my project

Please read the exception message properly, it is clearly showing that pya.marlon.com.pruebas.ExampleRXJava class not found, possibly you did not include the above class.
One very good tutorial on RxJava can be found here RxJava 2.0 - Tutorial

To use RxJava in Android add the following dependency to your build.gradle file.
compile 'io.reactivex.rxjava2:rxandroid:2.0.1'
compile 'io.reactivex.rxjava2:rxjava:2.0.8
and have a look at this Tutorial RXJava Android Article

Related

Cannot Build release apk version

The Problem occur when i generate release version of the APK . I have already view this question and try all things mention but problem still exists Please point me in the right direction
Error
Error:Execution failed for
task:app:transformClassesWithJarMergingForRelease'.
com.android.build.api.transform.TransformException:
java.util.zip.ZipException: duplicate entry:
android/support/design/widget/CoordinatorLayout$1.class
gradle
apply plugin: 'com.android.application'
android {
compileSdkVersion 27
buildToolsVersion "27.0.3"
dexOptions {
javaMaxHeapSize "4g"
}
defaultConfig {
applicationId "com.example.wildstone.cv_maker"
minSdkVersion 19
versionCode 1
versionName "1.0"
targetSdkVersion 27
multiDexEnabled true //important
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled true
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
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'
})
compile 'com.android.support:appcompat-v7:27.+'
compile 'com.android.support.constraint:constraint-layout:1.0.2'
compile 'com.android.support:cardview-v7:26.0.0-alpha1'
compile 'com.android.support:design:26.0.0-alpha1'
compile 'com.android.support:multidex:1.0.1'
compile 'com.google.android.gms:play-services:7.5.0'
compile 'com.itextpdf:itextg:5.5.10'
testCompile 'junit:junit:4.12'
}
This generally happens when you are using different versions of SDK and support libraries.
Replace the versions of these
compile 'com.android.support:cardview-v7:26.0.0-alpha1'
compile 'com.android.support:design:26.0.0-alpha1'
to
compile 'com.android.support:cardview-v7:27.1.0'
compile 'com.android.support:design:27.1.0'
and it should work.

Building an APK generates Error:Execution failed for task

When I try to build with my current gradle.build file, I get an error, then following that my gradle build.
Why is it causing this error?
Error:Execution failed for task ':app:transformClassesWithJarMergingForDebug'.
com.android.build.api.transform.TransformException:
java.util.zip.ZipException: duplicate entry: com/google/android/gms/internal/zzaf$zzd.class
this is my build.gradle
apply plugin: 'com.android.application'
android {
compileSdkVersion 25
buildToolsVersion "25.0.2"
defaultConfig {
applicationId "com.usmans.videodownloader"
minSdkVersion 17
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'
}
}
useLibrary 'org.apache.http.legacy'
}
dependencies {
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support', module: 'support-annotations'
})
compile 'com.android.support:appcompat-v7:25.3.1'
compile 'com.android.support:design:25.3.1'
compile 'com.android.support.constraint:constraint-layout:1.0.2'
testCompile 'junit:junit:4.12'
// glide
compile 'com.github.bumptech.glide:glide:3.7.0'
compile 'com.squareup.okio:okio:1.11.0'
compile 'com.squareup.picasso:picasso:2.5.2'
compile 'com.google.android.gms:play-services-analytics:8.4.0'
compile 'com.facebook.android:audience-network-sdk:4.+'
compile 'com.io.tools.android.ramiloif.folderchooser:folderchooser-dialog:1.0.6'
I don't know what is causing this. What can I do to solve this issue?
Change and exclude gms from facebook library.
compile ('com.facebook.android:audience-network-sdk:4.+'){
exclude group:"com.google.android.gms"
}
Then clean and rebuild your project.
Hope it works :)

Apache Mahout for Android

I am making a music recommendation Android app. I am trying to add Apache Mahout to the dependency, yet the library methods and classes are unavailable. Kindly point out what is going wrong .
Here's the build.gradle file.
apply plugin: 'com.android.application'
android {
compileSdkVersion 25
buildToolsVersion "25.0.2"
defaultConfig {
applicationId "com.example.ashutosh.music_player"
minSdkVersion 15
targetSdkVersion 25
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
repositories {
mavenCentral()
}
dependencies {
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'
})
compile 'com.android.support:appcompat-v7:25.1.0'
compile 'com.android.support:design:25.1.0'
testCompile 'junit:junit:4.12'
compile 'com.android.support:recyclerview-v7:25.1.0'
compile 'com.android.support:cardview-v7:25.1.0'
compile 'com.android.volley:volley:1.0.0'
compile 'com.facebook.android:facebook-android-sdk:4.+'
compile 'org.apache.mahout:mahout:0.10.0'
}
If you know anything as an alternative to mahout for recommendation system, kindly suggest that.

Duplicated files copied in APK. Android

I'm trying to send a file to my Datastore of google. When I try to run the application I take the following error:
Error:Execution failed for task
':app:transformResourcesWithMergeJavaResForDebug'.
com.android.build.api.transform.TransformException: com.android.builder.packaging.DuplicateFileException: Duplicate files
copied in APK
com/google/appengine/repackaged/org/apache/commons/codec/language/bm/sep_approx_spanish.txt
File1:
C:\Users\Javier.gradle\caches\modules-2\files-2.1\com.google.appengine\appengine-endpoints\1.9.28\bf2e8a74bd28e388b3487fc78a0c7adfa592fd5d\appengine-endpoints-1.9.28.jar
File2:
C:\Users\Javier.gradle\caches\modules-2\files-2.1\com.google.appengine\appengine-api-1.0-sdk\1.9.34\7c15c22fd362478e9758081d28e51590304d5ff4\appengine-api-1.0-sdk-1.9.34.jar
I tried exclude the file with
packagingOptions {
exclude 'sep_approx_spanish.txt'
}
but it doesn't work. My Build.gradle is the next:
apply plugin: 'com.android.application'
android {
compileSdkVersion 24
buildToolsVersion "24.0.2"
defaultConfig {
applicationId "com.example.javier.wh"
minSdkVersion 23
targetSdkVersion 24
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
packagingOptions {
exclude 'sep_approx_spanish.txt'
}
}
dependencies {
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support', module: 'support-annotations'
})
compile 'com.android.support:appcompat-v7:25.0.1'
compile 'com.google.android.gms:play-services:10.0.1'
compile 'com.android.support:support-v4:25.0.1'
compile 'com.android.support:recyclerview-v7:25.0.1'
compile 'com.android.support:design:25.0.1'
compile 'com.google.code.findbugs:jsr305:2.0.1'
testCompile 'junit:junit:4.12'
compile project(path: ':backend', configuration: 'android-endpoints')
compile 'com.google.appengine:appengine-api-1.0-sdk:1.9.34'
compile 'com.google.appengine:appengine-endpoints:1.9.28'
compile 'com.google.appengine:appengine-endpoints-deps:1.9.28'
compile 'javax.servlet:servlet-api:2.5'
compile fileTree(include: ['*.jar'], dir: 'libs')
compile 'com.google.guava:guava:19.0'
compile 'com.googlecode.objectify:objectify:5.1.12'
}
Someone had the same problem?
Help please!
Put below line in your app build.gradle inside android block
packagingOptions {
pickFirst 'com/google/appengine/repackaged/org/apache/commons/codec/language/bm/sep_approx_spanish.txt'
}

Picasso crashed with NoClassDefFoundError

I have been using Picasso for quite a while now. I have encountered a weird problem today.
I simply loaded an image url to an imageview with this code,
Picasso.with(_context)
.load(groupDeatils.getThumbnail()).transform(new CircleTransform())
.into(group_pic);
This is my gradle build,
apply plugin: 'com.android.application'
android {
compileSdkVersion 23
buildToolsVersion "23.0.2"
defaultConfig {
applicationId "com.km.contribill"
minSdkVersion 15
targetSdkVersion 23
versionCode 1
versionName "1.0"
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'
exclude 'META-INF/LICENSE.txt'
exclude 'META-INF/NOTICE.txt'
}
dexOptions {
incremental true
}
}
dependencies {
compile fileTree(include: ['*.jar'], dir: 'libs')
testCompile 'junit:junit:4.12'
compile 'com.android.support:appcompat-v7:23.1.1'
compile 'com.android.support:design:23.1.1'
compile 'com.facebook.android:facebook-android-sdk:4.1.0'
compile 'com.google.android.gms:play-services-auth:8.3.0'
compile 'com.google.android.gms:play-services:8.3.0'
compile 'com.shamanland:fab:0.0.8'
compile 'com.squareup.picasso:picasso:2.5.2'
compile project(':library')
}
After building the project when I run it and go to the page I am getting this error,
java.lang.NoClassDefFoundError: com.squareup.picasso.Utils
Any help would be appreciated.

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