Question

我正在尝试okhttp，并且遇到下一个错误：\

发现多个文件具有与操作系统无关的路径 'META-INF / proguard / okhttp3.pro'

这是我在build.gradle中拥有的

apply plugin: 'com.android.application'

android {
    compileSdkVersion 28
    defaultConfig {
        applicationId "com.woooba.login2"
        minSdkVersion 23
        targetSdkVersion 28
        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-v7:28.0.0-rc01'
    implementation 'com.android.support.constraint:constraint-layout:1.1.2'
    implementation 'com.squareup.okhttp3:okhttp:3.11.0'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
}

这是MainActivity.java

OkHttpClient client = new OkHttpClient();

String u = "https://samples.openweathermap.org/data/2.5/weather?q=London,uk&appid=b6907d289e10d714a6e88b30761fae22k";
task.execute(u);
Request request = new Request.Builder().url(u).build();

client.newCall(request).enqueue(new Callback() {
     @Override
     public void onFailure(Call call, IOException e) {
          e.printStackTrace();
     }

     @Override
     public void onResponse(Call call, Response response) throws IOException {
           if (response.isSuccessful()){
             Log.i("Response", response.body().string());
           }
         }
  });

有人知道会发生什么吗？它说“发现一个文件不止一个”，但不确定它在说什么。我是android新手

谢谢

更新根据@vivek请求显示的proguard-rules.pro代码

# Add project specific ProGuard rules here.
# You can control the set of applied configuration files using the
# proguardFiles setting in build.gradle.
#
# For more details, see
#   http://developer.android.com/guide/developing/tools/proguard.html

# If your project uses WebView with JS, uncomment the following
# and specify the fully qualified class name to the JavaScript interface
# class:
#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
#   public *;
#}

# Uncomment this to preserve the line number information for
# debugging stack traces.
#-keepattributes SourceFile,LineNumberTable

# If you keep the line number information, uncomment this to
# hide the original source file name.
#-renamesourcefileattribute SourceFile

更新2 在android {}中添加到build.grade下一个： link

packagingOptions {
        exclude 'META-INF/DEPENDENCIES'
        exclude 'META-INF/NOTICE'
        exclude 'META-INF/LICENSE'
        exclude 'META-INF/LICENSE.txt'
        exclude 'META-INF/NOTICE.txt'
        exclude 'META-INF/DEPENDENCIES'
        exclude 'META-INF/license.txt'
        exclude 'META-INF/notice.txt'
        exclude 'META-INF/ASL2.0'
        exclude 'META-INF/proguard/okhttp3.pro'
}

按下“立即同步”并播放，错误消失了，但是当您转到4：run时，我看到了另一个错误。

发现多个文件具有与操作系统无关的路径 'okhttp3 / internal / publicsuffix / publicsuffixes.gz'

所以我添加到PackagingOptions {}

排除“ okhttp3 / internal / publicsuffix / publicsuffixes.gz”

我收到下一个错误

编译失败

Android问题：

程序类型已经存在：okhttp3.Call $ Factory Message {kind = ERROR， text =程序类型已经存在：okhttp3.Call $ Factory， sources = [未知源文件]，工具名称= Optional.of（D8）}

有什么主意吗？我见过here，建议删除okhttp3的实现，但是当我在MainActivity中调用此类时出现错误

OkHttpClient客户=新的OkHttpClient（）;

Answer 1

看起来您的构建正在尝试在二进制文件中包含OkHttp的多个副本。您的任何依赖项都包括自己的OkHttp副本吗？您包括多个版本吗？

使用操作系统独立路径“ META-INF / proguard / okhttp3.pro”找到了多个文件

1 个答案: