如何解决java.lang.NoClassDefFoundError: okio.Okio？

Question

我有一个运行良好的应用程序，但有时当我在程序中添加一些类和代码时，我的应用程序会崩溃。在我的logcat中，错误是这样的：

 8871-8929/com.example.first E/AndroidRuntime﹕ FATAL EXCEPTION: pool-4-thread-1
java.lang.NoClassDefFoundError: okio.Okio
    at com.squareup.okhttp.internal.http.HttpConnection.<init>    (HttpConnection.java:90)
    at com.squareup.okhttp.Connection.connectSocket(Connection.java:208)
    at com.squareup.okhttp.Connection.connect(Connection.java:172)
    at com.squareup.okhttp.Connection.connectAndSetOwner(Connection.java:367)
    at com.squareup.okhttp.OkHttpClient$1.connectAndSetOwner(OkHttpClient.java:128)
    at com.squareup.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:328)
    at com.squareup.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:245)
    at com.squareup.okhttp.internal.huc.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:438)
    at com.squareup.okhttp.internal.huc.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:389)
    at com.squareup.okhttp.internal.huc.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:233)

我的gradle：

dependencies {
 compile fileTree(dir: 'libs', include: ['*.jar'])
 compile 'com.android.support:support-v4:23.1.+'
 compile 'com.google.android.gms:play-services:3.2.+'
 compile 'net.hockeyapp.android:HockeySDK:3.6.+'
 compile 'com.googlecode.mp4parser:isoparser:1.0.+'
 compile 'com.android.support:appcompat-v7:23.1.0'
 compile 'com.android.support:design:23.1.1'
 compile 'com.android.support:cardview-v7:23.1.0'
 compile 'com.android.support:recyclerview-v7:23.0.1'
 compile 'com.github.bumptech.glide:glide:+'
 compile 'com.nineoldandroids:library:2.4.+'
  compile 'com.koushikdutta.ion:ion:2.+'
 compile 'de.greenrobot:eventbus:2.4.0'
 compile 'com.github.dmytrodanylyk.circular-progress-button:library:1.1.3'
 compile 'com.theartofdev.edmodo:android-image-cropper:1.0.+'
 compile 'com.squareup.picasso:picasso:2.5.2'
 compile 'com.squareup.okhttp:okhttp-urlconnection:2.7.5'
 compile 'com.github.rahatarmanahmed:circularprogressview:2.4.0'
 compile 'com.makeramen:roundedimageview:2.1.2'
 compile 'com.squareup.okio:okio:1.6.0'
}

Answer 1

也许您正在跨越65K方法的限制，并且拥有multiDexEnabled = true，但是还没有正确地设置多路转换？

如果您还没有，则需要添加以下内容：

dependencies {
  compile 'com.android.support:multidex:1.0.1'
}

和

@Override
protected void attachBaseContext(Context base) {
    super.attachBaseContext(base);
    MultiDex.install(this);
}

到类扩展应用程序

有关详细信息，请查看完整指南：https://developer.android.com/studio/build/multidex.html#avoid