Develop Reference

Unable to resolve error of gradle version when migrating to AndroidX

When I tried to migrate my own project to AndroidX, the error message appeared on a error dialog:
The gradle plugin version in your project build.gradle file needs to be set to at least com.android.tools.build:gradle:3.2.0 in order to migrate to AndroidX.
Then I googled this error on the Internet. A site was found that it said classpath 'com.android.tools.build:gradle:3.2.0' has to be added to the build.gradle. Therefore, I added the line to the build.gradle like this:
apply plugin: 'com.android.library'
android {
compileSdkVersion 28
defaultConfig {
minSdkVersion 19
targetSdkVersion 28
versionCode 1
versionName "1.0"
multiDexEnabled true
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 'com.android.support:multidex:1.0.3'
implementation 'com.android.support:support-core-utils:28.0.0'
implementation 'com.android.support:appcompat-v7:28.0.0'
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'
}
buildscript {
repositories {
google()
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.2.0'
}
}
allprojects {
repositories {
google()
jcenter()
}
}
However, the same error happened. Am I missing something?

Check your build.grade of Project level ( Not Module )
And change the version of the android gradle plugin:
buildscript {
...
dependencies {
...
classpath 'com.android.tools.build:gradle:3.4.1' // it should be more than 3.2.0
}
}

Could not find the AndroidManifest.xml file, using generation folder after Android Annotations

I can't run my project after adding the #EActivity Annotation to my class.
This is my Gradle Project:
// 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:3.3.2'
classpath 'com.neenbedankt.gradle.plugins:android-apt:1.8'
// 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
}
This is my Gradle Module:app
apply plugin: 'com.android.application'
def AAVersion = '4.2.0'
android {
compileSdkVersion 28
defaultConfig {
applicationId "com.example.tasks"
minSdkVersion 19
targetSdkVersion 28
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.android.support:appcompat-v7:28.0.0'
implementation 'com.android.support.constraint:constraint-layout:1.1.3'
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 'com.android.support:support-annotations:28.0.0'
annotationProcessor "org.androidannotations:androidannotations:$AAVersion"
implementation "org.androidannotations:androidannotations-api:$AAVersion"
}
After I added the Android Annotations in my Gradle I noticed that my AndroidMannifest didn't get automatically modified (Missing the _ in the activity), and when I add that manually it gets highlighted in red.
If I run the project normally (Without modifying the AndroidMannifest or changing the class to Annotations) it will run normally.
If I add the annotations and modify the Manifest I'll receive the error:
error: Could not find the AndroidManifest.xml file, using generation
folder
[C:\Users\Asusc\AndroidStudioProjects\Tasks\app\build\generated\source\apt\debug])
Any idea what I might be doing wrong?

In my case, adding this to build.gradle fixed it:
android {
...
defaultConfig {
...
javaCompileOptions {
annotationProcessorOptions {
arguments = ["androidManifestFile": "$projectDir/src/main/AndroidManifest.xml".toString()]
}
}
}
}

You should update to AndroidAnnotations 4.6.0 . This version has Android Gradle Plugin 3.3.+ support.

If you are using AndroidAnnotations 4.6.0 with Android Gradle Plugin 3.5.+, you can downgrade the Android Gradle Plugin version to 3.4.1 to fix.
classpath 'com.android.tools.build:gradle:3.4.1'

OSM Android dependecies failed to resolve

I'm currently trying to implement OSMDroid in to my project, but doing it has shown in the OSMDroid tutorial (http://osmdroid.github.io/osmdroid/index.html) does not seem to be working.
When I try to sync the Gradle project I get the following message:
Failed to resolve: osmdroid-android
And I have here the full build.gradle(Module: app):
apply plugin: 'com.android.application'
android {
compileSdkVersion 28
defaultConfig {
applicationId "com.example.massas.emergency_numbers_pi"
minSdkVersion 23
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 'org.osmdroid:osmdroid-android:6.0.0-SNAPSHOT'
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.android.support:appcompat-v7:28.0.0'
implementation 'com.android.support.constraint:constraint-layout:1.1.3'
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'
}
Am I doing something wrong or is the dependencie just outdated? Should I insert the dependencies in the project build.gradle?
I'm new to android dev, so please bear with me! Thanks

1) Make sure you have added the repository. You need maven central for stable releases and sonatype for snapshot. Instructions for that are included in the documentation but for the sake of this response:
Current stable:
repositories {
mavenCentral()
}
dependencies {
implementation 'org.osmdroid:osmdroid-android:6.0.1'
}
Current snapshot:
repositories {
mavenCentral()
maven{
url 'https://oss.sonatype.org/content/repositories/snapshots/'
name 'OSS-Sonatype'
}
}
dependencies {
implementation 'org.osmdroid:osmdroid-android:6.0.2-SNAPSHOT'
}
Note: you can also add repositories to your root gradle file to the allprojects section.
2) You should use the stable version (6.0.1 at the time of writing) uless you have a specific reason to use snapshot.

Gradle is taking a long time to build

All of a sudden my gradle build has become really really slow seams like its doing some extra work that it didn't used to do here is a picture from build :
as you can see there are a lot of tasks here it used to be build in like 10 seconds now it takes minutes to build whats wrong with it? it writes things in the bottom bar like resolving some libraries for kotlin and doing something related to caching "variant attribute matching cache" here is the picture :
i was trying to activate the annotation processor that it happend here is my gradle codes:
apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
android {
compileSdkVersion 26
defaultConfig {
applicationId "com.example.moein.volley_download_kotlin"
minSdkVersion 21
targetSdkVersion 26
versionCode 1
versionName "1.0"
multiDexEnabled true
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
javaCompileOptions{
annotationProcessorOptions {
includeCompileClasspath true
}
}
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
implementation fileTree(include: ['*.jar'], dir: 'libs')
implementation "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
implementation 'com.android.support:appcompat-v7:26.1.0'
implementation 'com.android.support.constraint:constraint-layout:1.1.0'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test.espresso:espresso- core:3.0.2'
implementation 'com.tonyodev.fetch2downloaders:fetch2downloaders:2.0.0-RC21'
implementation 'com.android.volley:volley:1.1.0'
implementation 'com.google.dagger:dagger:2.13'
annotationProcessor 'com.google.dagger:dagger-compiler:2.13'
annotationProcessor 'com.google.dagger:dagger-android-processor:2.13'
}
and the other code
buildscript {
ext.kotlin_version = '1.2.30'
repositories {
google()
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.1.2'
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$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
}

In gradle setting check work offline.
Clean and rebuild your project.
In gradle.properties in Gradle scripts directory(i.e., ~/.gradle/gradle.properties), add
org.gradle.parallel=true
org.gradle.daemon=true
This settings have helped me a lot.

Android google services plugin version conflict

I recently upgraded Android Studio to 3.1 and I am tuck with version conflict problem.My Gradle version is 4.4 and Andoid plugin version is 3.0.0. I tried changing it to 3.1.1.It gets reverted back to the previous version mumber. It is getting confusing for me,so your help is needed. When syncing I get the following message in the Build.
Version Conflict:
Please fix the version conflict either by updating the version of the google-services plugin (information about the latest version is available at https://bintray.com/android/android-tools/com.google.gms.google-services/) or updating the version of com.google.android.gms to 11.4.2.
build.gradle/app
apply plugin: 'com.android.application'
apply plugin: 'com.google.gms.google-services'
android {
compileSdkVersion 27
defaultConfig {
applicationId "com.globemaster.samples"
minSdkVersion 16
targetSdkVersion 27
versionCode 1
versionName "1.0"
multiDexEnabled true
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'])
//noinspection GradleCompatible
implementation 'com.android.support:appcompat-v7:27.0.0'
implementation 'com.android.support:design:27.0.0'
implementation 'com.payumoney.sdkui:plug-n-play:1.2.0'
implementation 'com.google.firebase:firebase-auth:15.0.0'
implementation 'com.android.support.constraint:constraint-layout:1.1.0'
testImplementation 'junit:junit:4.12'
implementation 'com.google.firebase:firebase-core:15.0.0'
implementation 'com.squareup.retrofit2:retrofit:2.4.0'
implementation 'com.squareup.retrofit2:converter-gson:2.1.0'
implementation 'com.squareup.picasso:picasso:2.5.2'
implementation 'com.jakewharton.picasso:picasso2-okhttp3-downloader:1.1.0'
implementation 'com.google.android.gms:play-services-location:15.0.0'
androidTestImplementation 'com.android.support.test:runner:1.0.1'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
}
build.gradle
// 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:3.0.0'
classpath 'com.google.gms:google-services:3.2.1'
// 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
}

Move this line at last
apply plugin: 'com.google.gms.google-services'
apply plugin: 'com.android.application'
android {
compileSdkVersion 27
defaultConfig {
applicationId "com.globemaster.samples"
minSdkVersion 16
targetSdkVersion 27
versionCode 1
versionName "1.0"
multiDexEnabled true
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'])
//
//
}
apply plugin: 'com.google.gms.google-services'
At the bottom of the (app)build.gradle script and rebuild the project.
Note:- I think that it has to do something with referencing
dependencies that have not yet been created. Something like calling a
variable before you even declare it

Pls add below code in your app build gradle.file
apply plugin: 'com.google.gms.google-services'

I hope this will work for you
Change your classpath to 3.1.1
classpath 'com.android.tools.build:gradle:3.1.1'
And apply plugin after dependencies in app gradle file
apply plugin: 'com.google.gms.google-services'