Gradle: More than one variant of project :myLib matches the consumer attributes
AndroidAndroid StudioGradleAndroid Gradle-PluginAndroid Problem Overview
A library that I wrote myLib
uses RemoteMessage
from Firebase
, the app itself also uses Firebase
.
Using gradle 4.7. Also facing this in 4.4.1.
How to fix it?
project.gradle
buildscript {
repositories {
google()
jcenter()
mavenCentral()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.1.2'
classpath 'com.google.gms:google-services:3.3.0'
}
}
allprojects {
repositories {
google()
jcenter()
mavenCentral()
mavenLocal()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
app.gradle
apply plugin: 'com.android.application'
android {
compileSdkVersion 27
defaultConfig {
applicationId "com.test.app"
minSdkVersion 19
targetSdkVersion 27
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
multiDexEnabled true
}
dexOptions {
preDexLibraries = false
jumboMode = false
javaMaxHeapSize "2048M"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
productFlavors {
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.android.support:appcompat-v7:27.1.1'
implementation 'com.google.android.gms:play-services-gcm:12.0.1'
implementation 'com.google.android.gms:play-services:12.0.1'
implementation 'com.google.firebase:firebase-core:12.0.1'
implementation 'com.google.firebase:firebase-messaging:12.0.1'
implementation 'com.google.firebase:firebase-crash:12.0.1'
implementation project(":myLib")
}
apply plugin: 'com.google.gms.google-services'
myLib.gradle
apply plugin: 'com.android.library'
android {
compileSdkVersion 27
defaultConfig {
minSdkVersion 19
targetSdkVersion 27
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 fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.android.support:appcompat-v7:27.1.1'
implementation group: 'com.google.code.gson', name: 'gson', version: '2.8.2'
implementation 'com.j256.ormlite:ormlite-core:5.0'
implementation 'com.j256.ormlite:ormlite-android:5.0'
implementation 'com.google.firebase:firebase-messaging:12.0.1'
}
Error output from testApp\myLib> gradle clean assembleDebug
and testApp\app> gradle clean assembleDebug
> More than one variant of project :myLib matches the > consumer attributes: > > - Configuration ':myLib:debugApiElements' variant android-aidl: > - Found artifactType 'android-aidl' but wasn't required. > - Required com.android.build.api.attributes.BuildTypeAttr 'debug' and found compatible value 'debug'. > - Found com.android.build.api.attributes.VariantAttr 'debug' but wasn't required. > - Required com.android.build.gradle.internal.dependency.AndroidTypeAttr 'Aar' and > found compatible value 'Aar'. > - Required org.gradle.usage 'java-api' and found compatible value 'java-api'. > - Configuration ':myLib:debugApiElements' variant android-classes: > - Found artifactType 'android-classes' but wasn't required. > - Required com.android.build.api.attributes.BuildTypeAttr 'debug' and found compatible value 'debug'. > - Found com.android.build.api.attributes.VariantAttr 'debug' but wasn't required. > - Required com.android.build.gradle.internal.dependency.AndroidTypeAttr 'Aar' and > found compatible value 'Aar'. > - Required org.gradle.usage 'java-api' and found compatible value 'java-api'. > - Configuration ':myLib:debugApiElements' variant android-manifest: > - Found artifactType 'android-manifest' but wasn't required. > - Required com.android.build.api.attributes.BuildTypeAttr 'debug' and found compatible value 'debug'. > - Found com.android.build.api.attributes.VariantAttr 'debug' but wasn't required. > - Required com.android.build.gradle.internal.dependency.AndroidTypeAttr 'Aar' and > found compatible value 'Aar'. > - Required org.gradle.usage 'java-api' and found compatible value 'java-api'. > - Configuration ':myLib:debugApiElements' variant android-renderscript: > - Found artifactType 'android-renderscript' but wasn't required. > - Required com.android.build.api.attributes.BuildTypeAttr 'debug' and found compatible value 'debug'. > - Found com.android.build.api.attributes.VariantAttr 'debug' but wasn't required. > - Required com.android.build.gradle.internal.dependency.AndroidTypeAttr 'Aar' and > found compatible value 'Aar'. > - Required org.gradle.usage 'java-api' and found compatible value 'java-api'. > - Configuration ':myLib:debugApiElements' variant jar: > - Found artifactType 'jar' but wasn't required. > - Required com.android.build.api.attributes.BuildTypeAttr 'debug' and found compatible value 'debug'. > - Found com.android.build.api.attributes.VariantAttr 'debug' but wasn't required. > - Required com.android.build.gradle.internal.dependency.AndroidTypeAttr 'Aar' and > found compatible value 'Aar'. > - Required org.gradle.usage 'java-api' and found compatible value 'java-api'.
Android Solutions
Solution 1 - Android
The google-services
gradle plugin is made to work with Google Play Services and Firebase 15+
, but you're using it with version 12.0.1
.
The solution is to either:
- Upgrade your Play Services and Firebase dependencies to version
15+
(note that they have different versions now) - Cancel your
google-services
upgrade to3.3.0
until you upgrade to15+
, that is, downgrading the gradle plugin to version3.2.1
.
EDIT 1: There's a known issue about using google-services
3.3
in multimodule apps. That means downgrading to google-services
to 3.2.1
may be your only option until a new version that fixes the bug is released.
EDIT 2: The bug mentioned above has been fixed in the version 4.0.1
of the google-services
gradle plugin! (and the version 4.0.2
also fixes an NPE that occurred in some cases)
BTW, you should move to FCM. GCM will stop working in a not too distant future.
Solution 2 - Android
I got this error when I use google-services:3.3.0.
Downgrade to classpath 'com.google.gms:google-services:3.2.1'
in your project .gradle.
It should solve the issue.
Update: It should probably not occur in the current versions.
Solution 3 - Android
Faced with similar issue while upgrading to 3.3.1
Fixed it by downgrading to 3.2.1
We can use firebase version >=15 with 3.2.1
Solution 4 - Android
Below steps worked for me ---
- Go to the android/build.gradle file.
- Search for
jcentre()
method. - Shift all the
jcenter()
methods to the bottom inside its block.
Solution 5 - Android
I faced a similar issue in past few days with.
implementation 'com.google.android.gms:play-services-auth:15.0.0'
implementation 'com.google.firebase:firebase-messaging:15.0.0'
solution was to either downgrade to
implementation 'com.google.android.gms:play-services-auth:12.0.1'
implementation 'com.google.firebase:firebase-messaging:12.0.1'
or consider leaving Google Cloud Services and upgrading to FCM entirely
Note that they have different version numbers you can look it up here