We recently bumped the minSdkVersion of our app from 16 (Jellybean) to 21 (Lollipop). Although we did extensive testing with our app predominantly using debug builds, we are now facing a slew of production crashes at app startup, predominantly on older Samsung devices - (Note3 and S4 are the top crashers) and always on Lollipop.
The error is
Fatal Exception: java.lang.NoClassDefFoundError: com.retailconvergence.ruelala.delegate.GoogleLoginDelegate
at com.retailconvergence.ruelala.delegate.LifecycleDelegateManager.addDelegateOfType(LifecycleDelegateManager.java:48)
at com.retailconvergence.ruelala.extensions.activity.LifecycleDelegateActivity.addDelegateOfType(LifecycleDelegateActivity.java:55)
at com.retailconvergence.ruelala.activity.SplashActivity.setupDelegates(SplashActivity.java:198)
at com.retailconvergence.ruelala.activity.SplashActivity.onCreate(SplashActivity.java:60)
at android.app.Activity.performCreate(Activity.java:6288)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1119)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2646)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2758)
at android.app.ActivityThread.access$900(ActivityThread.java:177)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1448)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:5942)
at java.lang.reflect.Method.invoke(Method.java)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1399)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1194)
The SplashActivity is the initial lauching activity of the app. The class not found is a long-established class not something newly introduced. As a side note, as part of this latest release we upgraded to Android Studio 3 and introduced Kotlin code, but I dont think these are related to the issue. We are not using proguard in the build.
I'm aware that there was a significant change for builds when the minSdkVersion is 21 and above, relating to the use of ART instead of Dalvik, so I'm wondering if there is some flaw with Samsung Lollipop devices still looking for a class in the primary dex file now?
The module-level build.gradle:
import java.text.SimpleDateFormat
import java.util.concurrent.TimeUnit
apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
apply plugin: 'io.fabric'
apply plugin: 'spoon'
// Manifest version information
def versionMajor = 4
def versionMinor = 2
def versionPatch = 0
def versionBuild = 0 // bump for dogfood builds, public betas, etc.
ext.versionReleaseDate="OCT-13-2017" // UPDATE THIS WHEN YOU BUMP THE VERSIONS ABOVE FOR A NEW RELEASE MMM-dd-yyy
repositories {
mavenCentral()
maven { url 'https://maven.fabric.io/public' }
maven { url 'http://salesforce-marketingcloud.github.io/JB4A-SDK-Android/repository' }
maven { url "https://maven.google.com" }
maven { url "http://maven.tealiumiq.com/android/releases/" }
}
def getCountOfHoursSinceVersionUpdate() {
def currentDate = new Date()
def format = new SimpleDateFormat("MMM-dd-yyyy")
def buildDate = (Date)format.parse(versionReleaseDate)
return (Integer)((currentDate.getTime() - buildDate.getTime()) / TimeUnit.HOURS.toMillis(1))
}
android {
compileSdkVersion 26
buildToolsVersion '26.0.1'
defaultConfig {
targetSdkVersion 25
/**
* Increment versionCode by commit count
*/
versionCode versionMajor * 100000 + versionMinor * 10000 + versionPatch * 1000 + versionBuild + getCountOfHoursSinceVersionUpdate()
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
// Enabling multidex support. :(
multiDexEnabled true
def manifestPath = project(':').file('app/src/androidTest/AndroidManifest.xml')
buildConfigField "String", "MANIFEST_PATH", "\"" + manifestPath + "\""
def resPath = project(':').file('app/src/main/res/')
buildConfigField "String", "RES_PATH", "\"" + resPath + "\""
def assetPath = project(':').file('app/src/prod/assets/')
buildConfigField "String", "ASSET_PATH", "\"" + assetPath + "\""
}
dexOptions {
javaMaxHeapSize "8g"
dexInProcess true // the magic line
}
flavorDimensions "debugDimension"
/**
* productFlavors override defaultConfig properties as well as force gradle to look in the new
* folders that we have created to differentiate the build assets and manifests.
* src/dev, src/prod
*/
productFlavors {
dev {
minSdkVersion 21
applicationId "com.retailconvergence.ruelala.dev"
versionName "${versionMajor}.${versionMinor}.0${versionPatch}"
manifestPlaceholders = [optimizelyId: "optly4740131949"]
dimension "debugDimension"
}
prod {
minSdkVersion 21
applicationId "com.retailconvergence.ruelala"
versionName "${versionMajor}.${versionMinor}.${versionPatch}"
manifestPlaceholders = [optimizelyId: "optly4752051515"]
dimension "debugDimension"
}
}
signingConfigs {
prod {
//the key is up a level, don't include in the modules
storeFile file("../RueLaLaKeystore")
storePassword "Boutiques"
keyAlias "rue la la"
keyPassword "Boutiques"
}
}
buildTypes {
release {
signingConfig signingConfigs.prod
ext.betaDistributionReleaseNotesFilePath = 'release_notes.txt'
ext.betaDistributionGroupAliases = 'AndroidTesters'
ext.betaDistributionNotifications = true
}
debug {
versionNameSuffix '-dev'
signingConfig signingConfigs.prod
// to get coverage report, set testCoverageEnabled to true and run gradle task called createDevelopmentDebugAndroidTestCoverageReport
// Note that test coverage doesn't seem to work on Samsung devices, other brand or emulator should work though
testCoverageEnabled = false
ext.betaDistributionReleaseNotesFilePath = 'release_notes.txt'
ext.betaDistributionGroupAliases = 'AndroidTesters'
ext.betaDistributionNotifications = true
}
}
packagingOptions {
exclude 'META-INF/LICENSE.txt'
exclude 'META-INF/NOTICE.txt'
exclude 'META-INF/LICENSE'
exclude 'META-INF/NOTICE'
exclude 'LICENSE.txt'
exclude 'LICENSE'
exclude 'READ.ME'
exclude 'README'
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
}
configurations {
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
//include our modules
compile project(':core')
compile project(':data')
//android
final APP_COMPAT_VERSION = '26.1.0'
compile "com.android.support:appcompat-v7:$APP_COMPAT_VERSION"
compile "com.android.support:recyclerview-v7:$APP_COMPAT_VERSION"
compile "com.android.support:design:$APP_COMPAT_VERSION"
compile "com.android.support:multidex:1.0.0"
compile "com.android.support:cardview-v7:$APP_COMPAT_VERSION"
// google
final PLAY_SERVICES_VERSION = '10.2.4'
compile "com.google.android.gms:play-services-wallet:$PLAY_SERVICES_VERSION"
compile "com.google.android.gms:play-services-location:$PLAY_SERVICES_VERSION"
compile "com.google.android.gms:play-services-gcm:$PLAY_SERVICES_VERSION"
compile "com.google.android.gms:play-services-plus:$PLAY_SERVICES_VERSION"
compile "com.google.android.gms:play-services-identity:$PLAY_SERVICES_VERSION"
compile "com.google.android.gms:play-services-analytics:$PLAY_SERVICES_VERSION"
compile "com.google.android.gms:play-services-auth:$PLAY_SERVICES_VERSION"
compile "com.google.android.gms:play-services-maps:$PLAY_SERVICES_VERSION"
// facebook
compile 'com.facebook.android:facebook-android-sdk:4.8.+'
compile 'com.facebook.stetho:stetho:1.1.0'
//markdown4j
compile 'org.commonjava.googlecode.markdown4j:markdown4j:2.2-cj-1.0'
//crashlytics
compile('com.crashlytics.sdk.android:crashlytics:2.5.2@aar') {
transitive = true;
}
//image zoom
compile 'com.github.chrisbanes.photoview:library:1.2.3'
//square
compile 'com.squareup.picasso:picasso:2.5.2'
compile 'com.makeramen:roundedimageview:2.2.1'
debugCompile 'com.squareup.leakcanary:leakcanary-android:1.5.1'
releaseCompile 'com.squareup.leakcanary:leakcanary-android-no-op:1.5.1'
testCompile 'com.squareup.leakcanary:leakcanary-android-no-op:1.5.1'
compile 'com.jakewharton:butterknife:8.6.0'
annotationProcessor 'com.jakewharton:butterknife-compiler:8.6.0'
// optimizely
compile('com.optimizely:optimizely:1.4.2@aar') {
transitive = true
}
//braintree
compile 'com.braintreepayments.api:braintree:2.6.0'
compile 'com.braintreepayments.api:data-collector:2.+'
// guava
compile 'com.google.guava:guava:19.0'
// sticky headers
compile 'com.github.mtotschnig:StickyListHeaders:2.7.1'
// expandable recyclerview
compile 'eu.davidea:flexible-adapter:5.0.0-rc2'
//recyclerview animations
compile 'jp.wasabeef:recyclerview-animators:2.2.3'
// tooltip
compile 'com.github.michaelye.easydialog:easydialog:1.4'
// tealium
compile 'com.tealium:library:5.3.0'
// circle indicator
compile 'me.relex:circleindicator:1.2.2@aar'
//testing
final HAMCREST_VERSION = '1.3'
def jUnit = "junit:junit:4.12"
// ExactTarget SDK
compile ('com.salesforce.marketingcloud:marketingcloudsdk:5.0.5') {
exclude module: 'android-beacon-library' //remove to use Proximity messaging
exclude module: 'play-services-location' //remove to use Geofence or Proximity messaging
}
androidTestCompile jUnit
// Unit tests dependencies
testCompile jUnit
testCompile "org.hamcrest:hamcrest-core:$HAMCREST_VERSION"
testCompile "org.hamcrest:hamcrest-library:$HAMCREST_VERSION"
testCompile "org.hamcrest:hamcrest-integration:$HAMCREST_VERSION"
testCompile 'org.robolectric:robolectric:3.1'
testCompile 'org.mockito:mockito-core:1.+'
testCompile 'com.google.guava:guava:19.0'
testCompile("com.android.support:support-v4:$APP_COMPAT_VERSION") {
exclude module: 'support-annotations'
}
testCompile('org.powermock:powermock-api-mockito:1.6.4') {
exclude module: 'objenesis'
}
testCompile('org.powermock:powermock-module-junit4:1.6.4') {
exclude module: 'objenesis'
}
testCompile 'io.reactivex:rxandroid:1.0.1'
testCompile 'io.reactivex:rxjava:1.1.0'
// Espresso
androidTestCompile('com.android.support.test:runner:0.5') {
exclude module: 'support-annotations'
}
androidTestCompile('com.android.support.test:rules:0.5') {
exclude module: 'support-annotations'
}
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2') {
exclude module: 'support-annotations'
}
androidTestCompile('com.android.support.test.espresso:espresso-intents:2.2.2') {
exclude module: 'support-annotations'
}
androidTestCompile('com.android.support.test.espresso:espresso-web:2.2.2') {
exclude module: 'support-annotations'
}
androidTestCompile('com.android.support.test.espresso:espresso-contrib:2.2.2') {
exclude module: 'support-annotations'
exclude module: 'recyclerview-v7'
exclude module: 'appcompat-v7'
exclude module: 'design'
exclude module: 'support-v4'
}
// allows java 8 compile
compile 'com.annimon:stream:1.1.2'
// For taking screenshots
androidTestCompile 'com.squareup.spoon:spoon-client:1.7.0'
testCompile 'com.android.support.test.uiautomator:uiautomator-v18:2.1.2'
compile 'com.android.support.test.uiautomator:uiautomator-v18:2.1.2'
compile "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
}
apply plugin: 'com.google.gms.google-services'
spoon {
noAnimations = true
grantAllPermissions = true
}
apply plugin: 'devicefarm'
devicefarm {
projectName "Rue Mobile"
devicePool "Smoke Test Pool"
useUnmeteredDevices()
authentication {
accessKey System.getenv("AWS_DEVICE_FARM_ACCESS_KEY")
secretKey System.getenv("AWS_DEVICE_FARM_SECRET_KEY")
}
}
The fix for this was to disable pre-dexing:
dexOptions {
preDexLibraries false
}
in the app build.gradle. Inspiration for this came from this link regarding a Picasso class not found error on Lollipop: see here
Its not entirely clear to me why disabling pre-dexing solves the problem, but I can only theorize that there is some optimization going on with the build process that affects the way classes are ordered in the dex files of the apk that then affects the app installation on these Samsung Lollipop devices. In theory ART should take care of all of that, but clearly there is a dependency between pre-dex optimization and some Lollipop devices.
来源：https://stackoverflow.com/questions/46814593/android-app-crash-noclassdeffounderror-on-samsung-lollipop-devices