程序类型已存在：com.loopj.android.http.AsyncHttpClient$3

Question

我正在尝试构建应用程序，但编译失败。我尝试清理项目，当我尝试重建项目时，出现了同样的错误。

我从 logcat 得到这个错误：

Program type already present: com.loopj.android.http.AsyncHttpClient
Message{kind=ERROR, text=Program type already present: com.loopj.android.http.AsyncHttpClient, sources=[Unknown source file], tool name=Optional.of(D8)}

这是我的 build.gradle:

apply plugin: 'com.android.application'

android {
compileSdkVersion 24
buildToolsVersion '27.0.3'
defaultConfig {
    applicationId "com.example.joao.cafeclientapp"
    minSdkVersion 21
    targetSdkVersion 24
    versionCode 1
    versionName "1.0"
    testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    vectorDrawables.useSupportLibrary = true
}
buildTypes {
    release {
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
    }
}
}

repositories {
maven { url "https://jitpack.io" }
}

dependencies {
implementation fileTree(include: ['*.jar'], dir: 'libs')
androidTestImplementation('com.android.support.test.espresso:espresso-core:2.2.2', {
    exclude group: 'com.android.support', module: 'support-annotations'
})
implementation 'com.android.support:appcompat-v7:24.2.1'
implementation 'com.android.support:design:24.2.1'
testImplementation 'junit:junit:4.12'
implementation 'com.loopj.android:android-async-http:1.4.9'
implementation files('libs/android-async-http-1.4.9.jar')
implementation 'com.android.support:recyclerview-v7:24.2.1'
implementation 'com.github.dbachelder:CreditCardEntry:1.4.7'
implementation 'com.google.code.gson:gson:2.7'
implementation 'com.google.zxing:core:3.3.0'
implementation 'com.getbase:floatingactionbutton:1.10.1'
}

Answer 1

implementation 'com.loopj.android:android-async-http:1.4.9'
implementation files('libs/android-async-http-1.4.9.jar')

去掉第二行应该没问题

Answer 2

变化：

Implementation files ('libs/android-async-http-1.4.9.jar')

收件人：

Compile files ('libs/android-async-http:1.4.9')

Answer 3

就我而言，我去了那些在构建过程中出现问题的文件所在的位置。我在文件浏览器中打开了受感染的文件并删除了其中一个重复文件，然后我再次构建了该项目并且它对我有用。

这些文件位于以下位置：

..app\build\intermediates\external_file_lib_dex_archives\debug\out

程序类型已存在：com.loopj.android.http.AsyncHttpClient$3

Program type already present: com.loopj.android.http.AsyncHttpClient$3

android

runtime-error

gradle

android-async-http