小编Bra*_*n W的帖子

因此,我昨天在Android Studio中遇到了这个错误,这是我以前从未见过的,这是由过去3个月未触及过的一段代码引起的.这来自用于注册推送通知的代码,本周早些时候工作正常,但现在它导致了这个错误:

05-20 10:37:02.064 22471-22681/com.appname E/AndroidRuntime: FATAL EXCEPTION: IntentService[RegIntentService]
                                                               Process: com.appname, PID: 22471
                                                               java.lang.IncompatibleClassChangeError: The method 'java.io.File android.support.v4.content.ContextCompat.getNoBackupFilesDir(android.content.Context)' was expected to be of type virtual but instead was found to be of type direct (declaration of 'java.lang.reflect.ArtMethod' appears in /system/framework/core-libart.jar)
                                                                   at com.google.android.gms.iid.zzd.zzeb(Unknown Source)
                                                                   at com.google.android.gms.iid.zzd.<init>(Unknown Source)
                                                                   at com.google.android.gms.iid.zzd.<init>(Unknown Source)
                                                                   at com.google.android.gms.iid.InstanceID.zza(Unknown Source)
                                                                   at com.google.android.gms.iid.InstanceID.getInstance(Unknown Source)
                                                                   at com.appname.services.RegistrationIntentService.onHandleIntent(RegistrationIntentService.java:32)
                                                                   at android.app.IntentService$ServiceHandler.handleMessage(IntentService.java:65)
                                                                   at android.os.Handler.dispatchMessage(Handler.java:102)
                                                                   at android.os.Looper.loop(Looper.java:135)
                                                                   at android.os.HandlerThread.run(HandlerThread.java:61)

这是我的RegistrationIntentService类:

package com.appname.services;

import android.app.IntentService;
import android.content.Context;
import android.content.Intent;
import com.google.android.gms.gcm.GoogleCloudMessaging;
import com.google.android.gms.iid.InstanceID;
import com.appname.MainSharedPreferences; …