android - 我正在使用 Firebase，在创建 firebase 对象时出现此异常

Question

这是 logcat 消息

FATAL EXCEPTION: main
  java.lang.IllegalAccessError: tried to access method java.util.concurrent.ScheduledThreadPoolExecutor.setRemoveOnCancelPolicy:()V from class com.firebase.client.utilities.DefaultRunLoop
      at com.firebase.client.utilities.DefaultRunLoop.<init>(DefaultRunLoop.java:45)
      at com.firebase.client.android.AndroidPlatform$1.<init>(AndroidPlatform.java:44)
      at com.firebase.client.android.AndroidPlatform.newRunLoop(AndroidPlatform.java:44)
      at com.firebase.client.core.Context.ensureRunLoop(Context.java:224)
      at com.firebase.client.core.Context.initServices(Context.java:111)
      at com.firebase.client.core.Context.freeze(Context.java:92)
      at com.firebase.client.core.RepoManager.getLocalRepo(RepoManager.java:55)
      at com.firebase.client.core.RepoManager.getRepo(RepoManager.java:19)
      at com.firebase.client.Firebase.<init>(Firebase.java:172)
      at com.firebase.client.Firebase.<init>(Firebase.java:177)
      at com.firebase.client.Firebase.<init>(Firebase.java:155)
      at elnagga.forebasedemo.MainActivity.onCreate(MainActivity.java:24)
      at android.app.Activity.performCreate(Activity.java:5008)
      at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1079)
      at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2023)
      at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084)
      at android.app.ActivityThread.access$600(ActivityThread.java:130)
      at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195)
      at android.os.Handler.dispatchMessage(Handler.java:99)
      at android.os.Looper.loop(Looper.java:137)
      at android.app.ActivityThread.main(ActivityThread.java:4745)
      at java.lang.reflect.Method.invokeNative(Native Method)
      at java.lang.reflect.Method.invoke(Method.java:511)
      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
      at dalvik.system.NativeStart.main(Native Method)

Answer 1

看看Android App is crashing when connecting to Firebase 。这似乎是 firebase android 客户端中的一个错误。为了避免此错误，请使用 firebase android 客户端版本 2.5.0 而不是我假设您现在正在使用的 2.5.1。