详解android项目由Gradle 2.2 切换到 3.0的坑
问题1、运行的时候一直报如下错误
Error:Executionfailedfortask':app:transformDexArchiveWithExternalLibsDexMergerForApiTestDebug'.
>java.lang.RuntimeException:com.android.builder.dexing.DexArchiveMergerException:Unabletomergedex
查了很多资料，大概意识是引用重复的库或jar的问题。
然后一遍一遍的检查，发现并没有引用重复的jar包。
最后考虑是不是第三方库引用jar出现的问题，然后就一个一个排查第三方库，最后发现我们用支付用的是
compile'com.pingxx:pingpp-alipay:2.1.9'//使用支付宝时添加
发现这个库有些问题，竟然在里面引用两个版本的支付宝的jar包，果断的换了最新版本，检查了一个这次就引用了一个jar包。重新编译了一下项目，运行成功，问题解决了。
特别注意：引用第三方库在gralde3.0版本是更为严格，要特别注意。
问题2、
AAPT2
AAPT2将默认启用，如果遇到离奇的问题，可以尝试禁用，只要在gradle.properties中加入：
android.enableAapt2=false
其他：
应用（app）目录下build.gradle（下面implementation"com.android.support:design:25.4.0"切换为project的统一配置）
applyplugin:'com.android.application'
applyplugin:'io.fabric'
applyplugin:'com.google.gms.google-services'
android{
compileSdkVersion25
buildToolsVersion"26.0.2"
defaultConfig{
multiDexEnabledtrue
applicationId"com.example"
minSdkVersion21
targetSdkVersion23
versionCode1
versionName"1.0"
renderscriptTargetApi23
renderscriptSupportModeEnabledtrue
}
compileOptions{
sourceCompatibilityJavaVersion.VERSION_1_8
targetCompatibilityJavaVersion.VERSION_1_8
}
lintOptions{
quiettrue
abortOnErrorfalse
ignoreWarningstrue
disable'InvalidPackage'//Somelibrarieshaveissueswiththis.
disable'OldTargetApi'
//LintgivesthiswarningbutSDK20wouldbeAndroidLBeta.
disable'IconDensities'//Fortestingpurpose.Thisissafetoremove.
disable'IconMissingDensityFolder'//Fortestingpurpose.Thisissafetoremove.
}
dexOptions{
javaMaxHeapSize"8G"
}
packagingOptions{
exclude'LICENSE.txt'
exclude'META-INF/DEPENDENCIES.txt'
exclude'META-INF/LICENSE.txt'
exclude'META-INF/NOTICE.txt'
exclude'META-INF/NOTICE'
exclude'META-INF/LICENSE'
exclude'META-INF/DEPENDENCIES'
exclude'META-INF/notice.txt'
exclude'META-INF/license.txt'
exclude'META-INF/dependencies.txt'
exclude'META-INF/rxjava.properties'
}
sourceSets{
main.java.srcDirs+='build/generated/source/apt'
}
}
repositories{
flatDir{
dirs'libs'
}
}
dependencies{
implementationfileTree(dir:'libs',include:['*.jar'])
implementationproject(':library_api')
implementationproject(':library_base')
implementationproject(':library_blur_dialog')
implementationproject(':library_countrycodepicker_dialog')
implementationproject(':library_glow_decorator')
implementationproject(':library_icons')
implementationproject(':library_loopvideo')
implementationproject(':library_section_adaper')
implementationproject(':library_taptargetview')
implementationproject(':library_ucrop')
implementationproject(':library_utils')
implementationproject(':library_utils_picasso')
implementationproject(':library_vector_compat')
implementationproject(':library_view_clock')
implementationproject(':library_view_shimmer_recycler')
implementation"com.google.android.gms:play-services-cast-framework:11.4.2"
compileOnly'com.google.android.wearable:wearable:2.0.3'
implementation'com.google.android.support:wearable:2.0.3'
implementation'com.google.android.exoplayer:exoplayer:r2.4.1'
implementation"com.android.support:mediarouter-v7:25.4.0"
implementation"com.android.support:leanback-v17:25.4.0"
implementation"com.android.support:design:25.4.0"
implementation"com.android.support:appcompat-v7:25.4.0"
implementation"com.android.support:support-v4:25.4.0"
implementation"com.android.support:gridlayout-v7:25.4.0"
implementation"com.android.support:cardview-v7:25.4.0"
implementation"com.android.support:recyclerview-v7:25.4.0"
implementation"com.android.support:preference-v14:25.4.0"
//rxjava
implementation'io.reactivex:rxjava:1.2.9'
implementation'io.reactivex:rxandroid:1.2.1'
implementation'com.github.davidmoten:rxjava-extras:0.8.0.6'
//square
implementation"com.squareup.retrofit2:retrofit:2.1.0",
implementation"com.squareup.retrofit2:converter-gson:2.1.0"
implementation"com.squareup.retrofit2:adapter-rxjava:2.1.0"
implementation"com.squareup.phrase:phrase:1.1.0"
implementation"com.squareup.okhttp3:okhttp:3.6.0"
implementation"com.squareup.okhttp3:logging-interceptor:3.6.0"
implementation"com.squareup.okhttp3:okhttp-urlconnection:3.6.0"
//picasso
implementation"com.squareup.picasso:picasso:2.5.2"
implementation'com.jakewharton.picasso:picasso2-okhttp3-downloader:1.1.0'
//dagger
implementation"com.google.dagger:dagger:2.10"
annotationProcessor"com.google.dagger:dagger-compiler:2.10"
implementation"javax.annotation:jsr250-api:1.0"
implementation"javax.inject:javax.inject:1"
//jakeftw
implementation'com.jakewharton:butterknife:8.8.1'
annotationProcessor'com.jakewharton:butterknife-compiler:8.8.1'
compileOnly'org.projectlombok:lombok:1.16.16'
annotationProcessor'org.projectlombok:lombok:1.16.16'
//FragmentWithArgs
implementation"com.hannesdorfmann.fragmentargs:annotation:3.0.2",
annotationProcessor"com.hannesdorfmann.fragmentargs:processor:3.0.2",
implementation"org.parceler:parceler-api:1.1.9",
annotationProcessor"org.parceler:parceler:1.1.9",
implementation'com.hannesdorfmann.fragmentargs:bundler-parceler:3.0.2'
implementation"com.github.codekidX:storage-chooser:1.0.34"
implementation'io.github.yavski:fab-speed-dial:1.0.6'
implementation('com.crashlytics.sdk.android:crashlytics:2.6.7@aar'){
transitive=true;
}
//intentbuilder
implementation"com.github.marcinmoskala.activitystarter:activitystarter:1.00"
annotationProcessor"com.github.marcinmoskala.activitystarter:activitystarter-compiler:1.00"
implementation'com.android.support.constraint:constraint-layout:1.0.2'//constraint-layout
implementation'org.greenrobot:eventbus:3.0.0'
//font
implementation'uk.co.chrisjenx:calligraphy:2.2.0'
implementation'com.github.florent37:expectanim:1.0.6'
implementation'com.romandanylyk:pageindicatorview:0.2.0@aar'
implementation'com.github.rubensousa:gravitysnaphelper:1.2'
implementation'com.flaviofaria:kenburnsview:1.0.7'
implementation'com.github.florent37:arclayout:1.0.2'
implementation'com.jakewharton.rxbinding:rxbinding:1.0.1'
implementation'com.wang.avi:library:2.1.3'
implementation'com.flyco.tablayout:FlycoTabLayout_Lib:2.1.2@aar'
implementation'com.borax12.materialdaterangepicker:library:1.9'
implementation'com.github.scottyab:showhidepasswordedittext:0.8'
//Location
implementation"com.google.android.gms:play-services-maps:11.4.2"
implementation'pl.charmas.android:android-reactive-location:0.10@aar'
implementation"com.google.android.gms:play-services-location:11.4.2"
//youcanusenewerGMSversionifyouneed
implementation"com.google.android.gms:play-services-places:11.4.2"
implementation'com.tbruyelle.rxpermissions:rxpermissions:0.9.4@aar'
implementation'commons-validator:commons-validator:1.4.1'
implementation'com.balysv:material-ripple:1.0.2'
implementation'com.googlecode.libphonenumber:libphonenumber:8.5.2'
implementation'ru.egslava:MaskedEditText:1.0.5'
implementation'com.futuremind.recyclerfastscroll:fastscroll:0.2.5'
implementation"com.google.firebase:firebase-core:11.4.2"
implementation'com.labo.kaji:swipeawaydialog:0.1.1'
implementation'io.supercharge:shimmerlayout:1.0.1'
implementation'hanks.xyz:htextview-library:0.1.5'
implementation'com.github.castorflex.smoothprogressbar:library:1.1.0'//progressbarforactionbar
implementation'io.reactivex:rxjava-math:1.0.0'
implementation'jp.wasabeef:picasso-transformations:2.1.2'
implementation'com.afollestad.material-dialogs:core:0.9.1.0'
implementation('com.github.ihsanbal:LoggingInterceptor:2.0.2'){
excludegroup:'org.json',module:'json'
}
}
项目（project）目录下build.gradle：
//Top-levelbuildfilewhereyoucanaddconfigurationoptionscommontoallsub-projects/modules.
buildscript{
repositories{
maven{url'http://maven.aliyun.com/nexus/content/groups/public/'}
maven{
url'https://maven.google.com/'
name'Google'
}
jcenter()
//maven{url'http://maven.aliyun.com/nexus/content/repositories/jcenter'}
}
dependencies{
classpath'com.android.tools.build:gradle:3.0.1'
classpath'com.meituan.android.walle:plugin:1.1.1'
//NOTE:Donotplaceyourapplicationdependencieshere;theybelong
//intheindividualmodulebuild.gradlefiles
}
}
allprojects{
repositories{
maven{url'http://maven.aliyun.com/nexus/content/groups/public/'}
//maven{url'http://maven.aliyun.com/nexus/content/repositories/jcenter'}
maven{url"https://jitpack.io"}
maven{url'https://maven.google.com'}
maven{url"https://dl.google.com/dl/android/maven2/"}
jcenter()
google()
}
}
taskclean(type:Delete){
deleterootProject.buildDir
}
ext{
targetSdkVersion=26
minSdkVersion=14
compileSdk=26
buildTools="26.0.2"
junit='junit:junit:4.12'
recyclerview='com.android.support:recyclerview-v7:26.0.2'
appcompat='com.android.support:appcompat-v7:26.0.2'
design='com.android.support:design:26.0.2'
percent='com.android.support:percent:26.0.2'
glide='com.github.bumptech.glide:glide:3.7.0'
retrofit='com.squareup.retrofit:retrofit:1.9.0'
gson='com.google.code.gson:gson:2.8.0'
okhttp='com.squareup.okhttp3:okhttp:3.6.0'
//converterGson='com.squareup.retrofit:converter-gson:2.0.0-beta2'
//converterJackson='com.squareup.retrofit:converter-jackson:1.9.0'
commonsio='commons-io:commons-io:2.4'
}
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