【发布时间】：2018-10-27 08:52:21
【问题描述】：
我有一个项目，我在 android studio 3.3 Beta 1 中使用匕首版本 2.18 (implementation "com.google.dagger:dagger:2.18") 但是当我运行它时，它失败并出现以下错误
e/../../databinding/ActivityHomeBinding.java:46: error: cannot find symbol
@Nullable DataBindingComponent component) {
^
symbol: class DataBindingComponent
location: class ActivityHomeBinding
i: Note: [1] Wrote GeneratedAppGlideModule with: []
e: [kapt] An exception occurred: java.util.NoSuchElementException
at com.sun.tools.javac.util.List$2.next(List.java:432)
at com.google.common.collect.Iterators.getOnlyElement(Iterators.java:302)
at com.google.common.collect.Iterables.getOnlyElement(Iterables.java:254)
at dagger.android.processor.AndroidMapKeys.mapKeyValue(AndroidMapKeys.java:75)
at dagger.android.processor.AndroidMapKeys.lambda$annotationsAndFrameworkTypes$5(AndroidMapKeys.java:56)
at java.util.stream.Collectors.lambda$toMap$58(Collectors.java:1321)
at java.util.stream.ReduceOps$3ReducingSink.accept(ReduceOps.java:169)
at java.util.stream.Streams$StreamBuilderImpl.forEachRemaining(Streams.java:419)
为了解决问题，我试过了
- 按照https://github.com/google/dagger/issues/1245#issuecomment-431842933 的建议在我的主buid.gradle 中添加
classpath 'com.android.tools.build.jetifier:jetifier-processor:1.0.0-beta02'，但仍然失败并出现错误
What went wrong:
Execution failed for task ':app:kaptGenerateStubsDebugKotlin'.
Could not resolve all files for configuration ':app:kapt'.
Failed to transform file 'jetifier-core-1.0.0-alpha10.jar' to match attributes {artifactType=processed-jar} using transform JetifyTransform
Failed to transform '/home/s/.gradle/caches/modules-2/files-2.1/com.android.tools.build.jetifier/jetifier-core/1.0.0-alpha10/9eb7027c383061de12f93aae7a22cbeb97832d2a/jetifier-core-1.0.0-alpha10.jar' using Jetifier. Reason: The given artifact contains a string literal with a package reference 'android/support/v4' that cannot be safely rewritten. Libraries using reflection such as annotation processors need to be updated manually to add support for androidx.. (Run with --stacktrace for more details.) To disable Jetifier, set android.enableJetifier=false in your gradle.properties file.
-
使用匕首版本
2.16仍然失败并出现奇怪的错误e: /home/s/G/app/src/main/java/com/edijae/crusar/sample/di/modules/ApiModule.kt: (11, 16): Unresolved reference: logging e: /home/s/G/app/src/main/java/com/edijae/crusar/sample/di/modules/ApiModule.kt: (40, 40): Unresolved reference: HttpLoggingInterceptor e: /home/s/G/app/src/main/java/com/edijae/crusar/sample/di/modules/ApiModule.kt: (41, 35): Unresolved reference: HttpLoggingInterceptor
然而，当我导航到 ApiModule.kt 时，没有错误。那就是import okhttp3.logging.HttpLoggingInterceptor 没有以红色突出显示，我可以去那堂课。
以下是我的主要build.gradle
buildscript {
ext.kotlin_version = '1.2.71'
ext.realmVersion ='5.4.2'
repositories {
google()
jcenter()
maven {
url "https://maven.google.com"
}
maven { url "https://jitpack.io" }
}
dependencies {
classpath 'com.android.tools.build:gradle:3.4.0-alpha02'
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
classpath "io.realm:realm-gradle-plugin:$realmVersion"
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
google()
jcenter()
maven {
url "https://maven.google.com"
}
maven { url "https://jitpack.io" }
}
}
/**
* Configure common tasks on all the submodules
*/
allprojects { project ->
// Get versions, this is where we store things
// like the list of submodules or the version
project.apply from: "$rootDir/versions.gradle"
gradle.projectsEvaluated {
tasks.withType(JavaCompile.class) {
options.compilerArgs << "-Xmaxerrs" << "10000"
}
}
afterEvaluate {
if (project.plugins.hasPlugin("kotlin-kapt")) {
kapt {
javacOptions {
option("-Xmaxerrs", 10000)
}
}
}
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
下面是我应用的build.gradle
apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
apply plugin: 'kotlin-kapt'
apply plugin: 'maven'
apply plugin: 'realm-android'
android {
compileSdkVersion 28
defaultConfig {
minSdkVersion 15
targetSdkVersion 28
versionCode 1
versionName "1.0"
multiDexEnabled true
vectorDrawables.useSupportLibrary = true
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
renderscriptTargetApi 19
renderscriptSupportModeEnabled true
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
dataBinding {
enabled true
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
}
dependencies {
implementation fileTree(include: ['*.jar'], dir: 'libs')
//kotlin
implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
//glide
kapt "com.github.bumptech.glide:compiler:4.8.0"
implementation "com.github.bumptech.glide:glide:4.8.0"
//dagger
implementation "com.google.dagger:dagger:2.18"
kapt "com.google.dagger:dagger-compiler:2.18"
implementation "com.google.dagger:dagger-android:2.18"
implementation "com.google.dagger:dagger-android-support:2.18"
// if you use the support libraries
kapt "com.google.dagger:dagger-android-processor:2.18"
//retrofit
implementation "com.squareup.retrofit2:retrofit:2.4.0"
implementation "com.squareup.retrofit2:converter-gson:2.4.0"
implementation "com.squareup.retrofit2:adapter-rxjava2:2.4.0"
debugImplementation "com.squareup.okhttp3:logging-interceptor:3.8.0"
testImplementation 'junit:junit:4.12'
androidTestImplementation "androidx.test:runner:1.0.0"
androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.0-alpha4'
}
【问题讨论】：
标签： android gradle kotlin dagger-2 kotlin-android-extensions