java.lang.IllegalArgumentException: the accountType must not be empty:
11-21 10:00:54.317  3488  3502 E AndroidRuntime:        at android.content.SyncAdapterType.<init>(SyncAdapterType.java:69)
11-21 10:00:54.317  3488  3502 E AndroidRuntime:        at android.content.SyncAdaptersCache.parseServiceAttributes(SyncAdaptersCache.java:83)
11-21 10:00:54.317  3488  3502 E AndroidRuntime:        at android.content.SyncAdaptersCache.parseServiceAttributes(SyncAdaptersCache.java:57)
11-21 10:00:54.317  3488  3502 E AndroidRuntime:        at android.content.pm.RegisteredServicesCache.parseServiceInfo(RegisteredServicesCache.java:614)
11-21 10:00:54.317  3488  3502 E AndroidRuntime:        at android.content.pm.RegisteredServicesCache.generateServicesMap(RegisteredServicesCache.java:439)
11-21 10:00:54.317  3488  3502 E AndroidRuntime:        at android.content.pm.RegisteredServicesCache.getAllServices(RegisteredServicesCache.java:342)
11-21 10:00:54.317  3488  3502 E AndroidRuntime:        at android.content.SyncAdaptersCache.getSyncAdapterPackagesForAuthority(SyncAdaptersCache.java:116)
11-21 10:00:54.317  3488  3502 E AndroidRuntime:        at com.android.server.content.SyncManager.getSyncAdapterPackagesForAuthorityAsUser(SyncManager.java:1160)
11-21 10:00:54.317  3488  3502 E AndroidRuntime:        at com.android.server.content.ContentService.getSyncAdapterPackagesForAuthorityAsUser(ContentService.java:696)
11-21 10:00:54.317  3488  3502 E AndroidRuntime:        at android.content.ContentResolver.getSyncAdapterPackagesForAuthorityAsUser(ContentResolver.java:2055)
11-21 10:00:54.317  3488  3502 E AndroidRuntime:        at com.android.server.usage.UsageStatsService.reportContentProviderUsage(UsageStatsService.java:659)
11-21 10:00:54.317  3488  3502 E AndroidRuntime:        at com.android.server.usage.UsageStatsService$H.handleMessage(UsageStatsService.java:1174)
11-21 10:00:54.317  3488  3502 E AndroidRuntime:        at android.os.Handler.dispatchMessage(Handler.java:102)
11-21 10:00:54.317  3488  3502 E AndroidRuntime:        at android.os.Looper.loop(Looper.java:154)
11-21 10:00:54.317  3488  3502 E AndroidRuntime:        at android.os.HandlerThread.run(HandlerThread.java:61)
11-21 10:01:00.526  4023  4023 E AndroidRuntime: FATAL EXCEPTION: main
11-21 10:01:00.526  4023  4023 E AndroidRuntime: Process: com.android.phone, PID: 4023
11-21 10:01:00.526  4023  4023 E AndroidRuntime: DeadSystemException: The system died; earlier logs will point to the root cause
11-21 10:01:00.560  4054  4054 E AndroidRuntime: FATAL EXCEPTION: main
11-21 10:01:00.560  4054  4054 E AndroidRuntime: Process: com.android.systemui, PID: 4054