我用android studio创建了一个新项目，我尝试使用Samsung Ace 3调试它。我在logcat中遇到了很多错误，但我不知道该尝试什么。我尝试更改清单，以便定位SDK为18，最小值为15，最大值为21.
06-05 09:19:26.220 281-281/? E/SMD﹕ DCD ON
06-05 09:19:28.112 3328-4769/? E/dalvikvm﹕ Could not find class 'android.telephony.CellIdentityWcdma', referenced from method com.google.android.gms.herrevad.h.f.a
06-05 09:19:28.112 3328-4769/? E/dalvikvm﹕ Could not find class 'android.telephony.CellInfoWcdma', referenced from method com.google.android.gms.herrevad.h.f.a
06-05 09:19:28.142 3328-4769/? E/dalvikvm﹕ Could not find class 'android.telephony.CellInfoWcdma', referenced from method com.google.android.gms.herrevad.h.k.f
06-05 09:19:29.223 281-281/? E/SMD﹕ DCD ON
06-05 09:19:29.914 4810-4810/? E/dalvikvm﹕ Could not find class 'android.app.AppOpsManager', referenced from method com.google.android.gms.common.GooglePlayServicesUtil.zza
06-05 09:19:32.226 281-281/? E/SMD﹕ DCD ON
06-05 09:19:35.219 281-281/? E/SMD﹕ DCD ON
06-05 09:19:35.419 4362-4362/? E/MTPPlaObsrvr﹕ On change is called.false
06-05 09:19:35.419 4362-4362/? E/MTPPlaObsrvr﹕ URI of the playlistcontent://media/external/audio/playlists
06-05 09:19:35.469 4362-4362/? E/MTPPlaObsrvr﹕ Count2mCount2
06-05 09:19:35.469 4362-4362/? E/MTPPlaObsrvr﹕ Neither deleted nor added. Could be rename
06-05 09:19:35.469 4362-4362/? E/MTPPlaObsrvr﹕ It is not renamed
06-05 09:19:35.469 4362-4362/? E/MTPPlaObsrvr﹕ The DB is renamed.
06-05 09:19:35.469 4362-4362/? E/MTPPlaObsrvr﹕ playlist path before updatePlaylistPath
06-05 09:19:35.480 4362-4362/? E/MTPPlaObsrvr﹕ playlist is not renamed & m3u case
06-05 09:19:37.372 1412-1412/? E/AuthorizationBluetoothService﹕ Proximity feature is not enabled.
06-05 09:19:38.222 281-281/? E/SMD﹕ DCD ON
06-05 09:19:40.335 1412-1412/? E/AuthorizationBluetoothService﹕ Proximity feature is not enabled.
06-05 09:19:40.875 3328-4994/? E/WakeLock﹕ callingPackage is not supposed to be empty for wakelock Config Service fetch!
06-05 09:19:41.226 281-281/? E/SMD﹕ DCD ON
06-05 09:19:41.386 1412-1412/? E/AuthorizationBluetoothService﹕ Proximity feature is not enabled.
06-05 09:19:44.229 281-281/? E/SMD﹕ DCD ON
06-05 09:19:45.500 4362-4362/? E/MTPPlaObsrvr﹕ On change is called.false
06-05 09:19:45.500 4362-4362/? E/MTPPlaObsrvr﹕ URI of the playlistcontent://media/external/audio/playlists
06-05 09:19:45.550 4362-4362/? E/MTPPlaObsrvr﹕ Count2mCount2
06-05 09:19:45.550 4362-4362/? E/MTPPlaObsrvr﹕ Neither deleted nor added. Could be rename
06-05 09:19:45.550 4362-4362/? E/MTPPlaObsrvr﹕ It is not renamed
06-05 09:19:45.550 4362-4362/? E/MTPPlaObsrvr﹕ The DB is renamed.
06-05 09:19:45.560 4362-4362/? E/MTPPlaObsrvr﹕ playlist path before updatePlaylistPath
06-05 09:19:45.560 4362-4362/? E/MTPPlaObsrvr﹕ playlist is not renamed & m3u case
06-05 09:19:47.232 281-281/? E/SMD﹕ DCD ON
06-05 09:19:49.464 5083-5108/? E/dalvikvm﹕ Could not find class 'android.app.AppOpsManager', referenced from method com.google.android.gms.common.e.b
06-05 09:19:50.235 281-281/? E/SMD﹕ DCD ON
06-05 09:19:53.228 281-281/? E/SMD﹕ DCD ON
06-05 09:19:55.361 1274-1274/? E/CscFactoryReceiver﹕ onReceive android.intent.action.MEDIA_SCANNER_FINISHED
06-05 09:19:55.381 1274-1274/? E/CscUpdateService﹕ costomer file is exists : it has been preconfiged.
06-05 09:19:55.381 1274-1274/? E/CscUpdateService﹕ costomer file is exists : it has been preconfiged.
06-05 09:19:55.381 1274-1274/? E/CscUpdateService﹕ costomer file is exists : it has been preconfiged.
06-05 09:19:55.391 1274-5224/? E/CscParser﹕ update(): xml file exist
06-05 09:19:55.401 1274-5226/? E/CscParser﹕ update(): xml file exist
06-05 09:19:55.411 1274-5225/? E/CscParser﹕ update(): xml file exist
06-05 09:19:56.232 281-281/? E/SMD﹕ DCD ON
06-05 09:19:57.163 1496-1496/? E/BluetoothA2dpServiceJni﹕ Failed for on Track changed response, status: 2
06-05 09:19:57.163 1496-1496/? E/BluetoothA2dpServiceJni﹕ Failed for on play state changed response, status: 2
06-05 09:19:57.473 1496-1496/? E/BluetoothA2dpServiceJni﹕ Failed for on Track changed response, status: 2
06-05 09:19:57.513 1496-1496/? E/BluetoothA2dpServiceJni﹕ Failed for on play state changed response, status: 2
答案 0 :(得分：0)
您将看到整个设备的logcat（所有其他应用/服务）。要仅查看项目的logcat，请将logcat过滤器（通常在右侧的下拉列表）设置为：
“仅显示所选应用程序”
然后，您的logcat窗口应仅显示与您的应用相关的行。
更多信息：
如果您还没有，请确保您已遵循Google的Getting Started教程。具体来说，请参阅Running Your App。
确保您的设备已连接，ADB正在运行，并且您已从菜单中选择了“运行'应用程序”（应用程序应加载到您的设备上，而不是模拟器上。）
如果你已经完成了所有这些，你应该在底部窗口看到logcat，并且应该有过滤输出的选项。如果您没有在右侧看到“仅显示选定的应用程序”，则您的Android Studio平台/版本可能与我的不同。无论哪种方式，您仍然可以创建手动过滤器。