Develop Reference

build.gradle - All com.android.support libraries must use the exact same version specification (mixing versions can lead to runtime crashes)

Just installed Android Studio for the first time on this new machine and was trying to import a project that used to work without any errors a year ago on another machine.
Had to fix plenty of errors by just downloading and installing updates (recommendations).
The one error that's left is in the title.
This is my build.gradle source:
apply plugin: 'com.android.application'
android {
compileSdkVersion 24
repositories {
mavenCentral()
}
defaultConfig {
applicationId "com.test.testaa"
vectorDrawables.useSupportLibrary = true
minSdkVersion 19
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'
}
}
}
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.facebook.android:facebook-android-sdk:4.+'
compile 'com.android.support:appcompat-v7:24.2.1'
compile 'com.android.support:design:24.2.1'
compile 'com.android.support:support-v4:24.2.1'
compile 'com.squareup.picasso:picasso:2.5.2'
compile 'com.squareup.okhttp:okhttp:2.4.0'
compile 'com.squareup.okhttp:okhttp-urlconnection:2.2.0'
compile 'com.google.android.gms:play-services:9.6.1'
compile 'eu.the4thfloor.volley:com.android.volley:2015.05.28'
testCompile 'junit:junit:4.12'
}

Can't sign APK because of third party library

This is my first app publication. The project is working fine in the development side, but I am facing a problem during signing APK.
Included library in the app of com.1gravity:android-contactpicker
and facing problem during signing apk only.
error coming
Error:(30, 44) error: package com.onegravity.contactpicker.contact
does not exist
and
Generate Signed APK: Errors while building APK. You can find the
errors in the 'Messages' view.
gradle file
apply plugin: 'com.android.application'
android {
compileSdkVersion 25
buildToolsVersion "26.0.0"
defaultConfig {
applicationId 'com.mymatatu'
minSdkVersion 15
targetSdkVersion 25
versionCode 3
versionName "1.3"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
productFlavors {
}
}
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'
})
debugCompile project(':library')
compile 'com.android.support:appcompat-v7:25.3.1'
compile 'com.android.support.constraint:constraint-layout:1.0.2'
compile 'com.android.volley:volley:1.0.0'
compile 'com.android.support:design:25.3.1'
compile 'com.android.support:support-v4:25.3.1'
compile 'com.android.support:cardview-v7:25.3.1'
compile 'com.android.support:recyclerview-v7:25.3.1'
compile 'com.github.bumptech.glide:glide:4.0.0-RC1'
compile 'com.github.markushi:circlebutton:1.1'
testCompile 'junit:junit:4.12'
annotationProcessor 'com.github.bumptech.glide:compiler:4.0.0-RC1'
}

in your gradle file change this
debugCompile project(':library')
line into
compile project(':library')

compile appcompat v7:26.+ error when adding play services for fusion location provider

I have an issue and have looked at possible duplicate questions and answers and I think this one is not answered by the others so asking it here.
I updated my play services to make use of the fused location provider and now the appcompat in my gradle is showing an error.
So I created a new project and checked the build.gradle on the new project and have exactly the same appcompat but my project is showing an error.
apply plugin: 'com.android.application'
android {
compileSdkVersion 26
buildToolsVersion "26.0.0"
defaultConfig {
applicationId "au.com.itmobilesupport.sqltwo"
minSdkVersion 17
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 {
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-v7:26.+'
compile 'com.android.support:recyclerview-v7:26.+'
compile 'com.readystatesoftware.sqliteasset:sqliteassethelper:+'
testCompile 'junit:junit:4.12'
compile 'com.google.android.gms:play-services-maps:11.0.0'
compile 'com.google.android.gms:play-services:11.0.1'
}
Its this line that is showing the error:
compile 'com.android.support:appcompat-v7:26.+'
But in a new project its fine. Why am I getting the error?
UPDATE:
If I remove these two lines then the error goes away:
compile 'com.google.android.gms:play-services-maps:11.0.0'
compile 'com.google.android.gms:play-services:11.0.1'
But I need them so still have the error.

Add these lines to your build.gradle file to get libraries that you don't have based on Google site.
allprojects {
repositories {
jcenter()
maven {
url "https://maven.google.com"
}
}
}
Caution: Using dynamic dependencies (for example, palette-v7:23.0.+) can cause unexpected version updates and regression incompatibilities. We recommend that you explicitly specify a library version (for example, palette-v7:25.4.0).

Finally solved the issue with the help of ZeroOne's answer to a similar question.
What led me to look at ZeroOnes answer was Google giving me the reason but not as an error. My issue was that the following line is too encompassing and a lot of extra dependencies were added that would have made the app unnecessarily larger.
compile 'com.google.android.gms:play-services:11.0.1'
I simply needed to be more specific and the error disappeared.
Here is the final gradle.
apply plugin: 'com.android.application'
android {
compileSdkVersion 26
buildToolsVersion "26.0.0"
defaultConfig {
applicationId "au.com.itmobilesupport.sqltwo"
minSdkVersion 17
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 {
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-v7:26.+'
compile 'com.android.support:recyclerview-v7:26.+'
compile 'com.readystatesoftware.sqliteasset:sqliteassethelper:+'
testCompile 'junit:junit:4.12'
compile 'com.google.android.gms:play-services-maps:11.0.1'
compile 'com.google.android.gms:play-services-location:11.0.1'
}
And this is the specifc line I change the above to:
compile 'com.google.android.gms:play-services-location:11.0.1'
Hope it helps someone who comes across the same issue.

Being more specific using compile 'com.google.android.gms:play-services-location:11.0.1' rather than compile 'com.google.android.gms:play-services:11.0.1' saved my project as well, tks a lot guys.

duplicate entry of library gradle causing application not run

I searched alot but not found any solution of my problem, i tried to run my app on any device and i got this error:
it's throwing an error with com.github.bumptech.glide:glide:3.5.2 ,but it's used only single time how the classes of it got duplicate i run this app before with the same dependencies with out any trouble but suddenly this error appear while i run the app.
app.gradle file
apply plugin: 'com.android.application'
android {
compileSdkVersion 25
buildToolsVersion '25.0.3'
defaultConfig {
applicationId "info.androidhive.firebase"
minSdkVersion 19
targetSdkVersion 25
versionCode 1
versionName "1.0"
multiDexEnabled true
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(include: ['*.jar'], dir: 'libs')
compile 'com.android.support:appcompat-v7:25.3.1'
compile 'com.google.firebase:firebase-auth:10.0.1'
compile 'com.android.support:design:25.1.0'
compile 'com.firebaseui:firebase-ui-database:1.1.1'
compile 'com.firebaseui:firebase-ui-storage:1.1.1'
compile 'com.google.firebase:firebase-database:10.0.1'
compile 'com.google.firebase:firebase-core:10.0.1'
compile 'com.android.support.constraint:constraint-layout:1.0.0'
compile 'com.google.code.gson:gson:2.6.2'
compile 'com.github.bumptech.glide:glide:3.5.2'
compile 'com.android.support:cardview-v7:25.3.1'
compile 'com.android.support:recyclerview-v7:25.3.1'
compile 'com.android.support:multidex:1.0.1'
compile 'com.crystal:crystalrangeseekbar:1.1.1'
testCompile 'junit:junit:4.12'
}
apply plugin: 'com.google.gms.google-services'

Browse to your project's "libs" directory and remove redundant "glide.x.x" which is causing the error due to redundancy.

Try putting this line :
enforceUniquePackageName false
after buildtoolVersion in your gradle

How to gragle compile Custom Tabs when sdk is 25?

I take a reference on official website https://developer.chrome.com/multidevice/android/customtabs
They gradle like this :compile 'com.android.support:customtabs:23.3.0'
My project had used a lots of compile gradle that the sdk is 25 , i don't want to change it.
Is anyone to compile gragdle Custom Tabs when sdk is 25 ? Thanks in advance.
Here is my gradle:
apply plugin: 'com.android.application'
android {
compileSdkVersion 25
buildToolsVersion "25.0.1"
defaultConfig {
applicationId "com.example.my.myapp"
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'
}
}
}
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.crashlytics.sdk.android:crashlytics:2.6.6#aar') {
transitive = true;
}
compile files('libs/YouTubeAndroidPlayerApi.jar')
compile 'com.android.support:appcompat-v7:25.1.1'//i don't want to change it.
compile 'com.android.support:design:25.1.1'
compile 'com.android.support:support-v4:25.1.1'
compile 'com.android.support:recyclerview-v7:25.1.1'
compile 'com.github.PhilJay:MPAndroidChart:v3.0.1'
compile 'com.android.support:cardview-v7:25.1.1'
compile 'com.android.support:customtabs:23.3.0'//is this with verson 25 ?
testCompile 'junit:junit:4.12'
}
apply plugin: 'io.fabric'

You should use
dependencies {
...
compile 'com.android.support:customtabs:25.1.0' //25.2.0 has been published
}
Advantages
Customizing the UI and interaction with the custom tabs.
Making the page load faster, and keeping the application alive.
Read Chrome Custom Tabs