[Android Q&A, Help & Troubleshooting] bart452:
frameworks/base/services/java/com/android/server/BluetoothManagerService.java:24: cannot find symbol
symbol : class IBluetoothManagerCallback
location: package android.bluetooth
import android.bluetooth.IBluetoothManagerCallback;
^
frameworks/base/services/java/com/android/server/BluetoothManagerService.java:97: cannot find symbol
symbol : class IBluetoothManagerCallback
location: class com.android.server.BluetoothManagerService
private final RemoteCallbackList<IBluetoothManagerCallback> mCallbacks;
^
frameworks/base/services/java/com/android/server/BluetoothManagerService.java:301: cannot find symbol
symbol : class IBluetoothManagerCallback
location: class com.android.server.BluetoothManagerService
public IBluetooth registerAdapter(IBluetoothManagerCallback callback){
^
frameworks/base/services/java/com/android/server/BluetoothManagerService.java:310: cannot find symbol
symbol : class IBluetoothManagerCallback
location: class com.android.server.BluetoothManagerService
public void unregisterAdapter(IBluetoothManagerCallback callback) {
^
Reading library jar [/home/bart452/beergang/out/target/common/obj/JAVA_LIBRARIES/framework_intermediates/classes.jar]
Reading library jar [/home/bart452/beergang/out/target/common/obj/JAVA_LIBRARIES/framework_intermediates/classes.jar]
Copying: /home/bart452/beergang/out/target/common/obj/JAVA_LIBRARIES/mms-common_intermediates/noproguard.classes.jar
Install: /home/bart452/beergang/out/target/product/p700/system/app/DeskClock.apk
Reading library jar [/home/bart452/beergang/out/target/common/obj/JAVA_LIBRARIES/core-junit_intermediates/classes.jar]
Reading library jar [/home/bart452/beergang/out/target/common/obj/JAVA_LIBRARIES/ext_intermediates/classes.jar]
Copying: /home/bart452/beergang/out/target/common/obj/JAVA_LIBRARIES/android.test.runner_intermediates/noproguard.classes.dex
Copying: /home/bart452/beergang/out/target/common/obj/APPS/Nfc_intermediates/noproguard.classes.dex
Proguard: /home/bart452/beergang/out/target/common/obj/APPS/Phone_intermediates/proguard.classes.jar
Copying: /home/bart452/beergang/out/target/common/obj/APPS/ThemeChooser_intermediates/proguard.classes.dex
Copying: /home/bart452/beergang/out/target/common/obj/APPS/ThemeManager_intermediates/proguard.classes.dex
target Strip: libbcc.sha1 (/home/bart452/beergang/out/target/product/p700/obj/lib/libbcc.sha1.so)
Install: /home/bart452/beergang/out/target/product/p700/system/framework/monkey.jar
target Dex: mms-common
Reading library jar [/home/bart452/beergang/out/target/common/obj/JAVA_LIBRARIES/framework_intermediates/classes.jar]
ProGuard, version 4.4
Reading input...
Reading program jar [/home/bart452/beergang/out/target/common/obj/APPS/Phone_intermediates/classes.jar]
Reading library jar [/home/bart452/beergang/out/target/common/obj/JAVA_LIBRARIES/telephony-common_intermediates/classes.jar]
Reading library jar [/home/bart452/beergang/out/target/common/obj/JAVA_LIBRARIES/telephony-common_intermediates/classes.jar]
Reading library jar [/home/bart452/beergang/out/target/common/obj/JAVA_LIBRARIES/core_intermediates/classes.jar]
Reading library jar [/home/bart452/beergang/out/target/common/obj/JAVA_LIBRARIES/telephony-common_intermediates/classes.jar]
Preparing output jar [/home/bart452/beergang/out/target/common/obj/APPS/DrmProvider_intermediates/proguard.classes.jar]
Copying resources from program jar [/home/bart452/beergang/out/target/common/obj/APPS/DrmProvider_intermediates/classes.jar]
Reading library jar [/home/bart452/beergang/out/target/common/obj/JAVA_LIBRARIES/core-junit_intermediates/classes.jar]Reading library jar [/home/bart452/beergang/out/target/common/obj/JAVA_LIBRARIES/telephony-common_intermediates/classes.jar]

Preparing output jar [/home/bart452/beergang/out/target/common/obj/APPS/SettingsProvider_intermediates/proguard.classes.jar]
Copying resources from program jar [/home/bart452/beergang/out/target/common/obj/APPS/SettingsProvider_intermediates/classes.jar]Reading library jar [/home/bart452/beergang/out/target/common/obj/JAVA_LIBRARIES/ext_intermediates/classes.jar]

target Jar: android.test.runner (/home/bart452/beergang/out/target/common/obj/JAVA_LIBRARIES/android.test.runner_intermediates/javalib.jar)
Preparing output jar [/home/bart452/beergang/out/target/common/obj/APPS/CellBroadcastReceiver_intermediates/proguard.classes.jar]
Copying resources from program jar [/home/bart452/beergang/out/target/common/obj/APPS/CellBroadcastReceiver_intermediates/classes.jar]
frameworks/base/services/java/com/android/server/BluetoothManagerService.java:129: <anonymous com.android.server.BluetoothManagerService$1> is not abstract and does not override abstract method onAmpPolicyChange(int) in android.bluetooth.IBluetoothCallback
private final IBluetoothCallback mBluetoothCallback = new IBluetoothCallback.Stub() {
^
frameworks/base/services/java/com/android/server/BluetoothManagerService.java:130: method does not override or implement a method from a supertype
[MENTION=439709]override[/MENTION]
^
frameworks/base/services/java/com/android/server/BluetoothManagerService.java:201: cannot find symbol
symbol : class IBluetoothManagerCallback
location: class com.android.server.BluetoothManagerService
mCallbacks = new RemoteCallbackList<IBluetoothManagerCallback>();
^
frameworks/base/services/java/com/android/server/BluetoothManagerService.java:449: cannot find symbol
symbol : method unregisterCallback(android.bluetooth.IBluetoothCallback)
location: interface android.bluetooth.IBluetooth
mBluetooth.unregisterCallback(mBluetoothCallback);
^
frameworks/base/services/java/com/android/server/BluetoothManagerService.java:680: disable(boolean) in android.bluetooth.IBluetooth cannot be applied to ()
mBluetooth.disable();
^
frameworks/base/services/java/com/android/server/BluetoothManagerService.java:723: cannot find symbol
symbol : class IBluetoothManagerCallback
location: class com.android.server.BluetoothManagerService.BluetoothHandler
IBluetoothManagerCallback callback = (IBluetoothManagerCallback) msg.obj;
^
frameworks/base/services/java/com/android/server/BluetoothManagerService.java:723: cannot find symbol
symbol : class IBluetoothManagerCallback
location: class com.android.server.BluetoothManagerService.BluetoothHandler
IBluetoothManagerCallback callback = (IBluetoothManagerCallback) msg.obj;
^
frameworks/base/services/java/com/android/server/BluetoothManagerService.java:730: cannot find symbol
symbol : class IBluetoothManagerCallback
location: class com.android.server.BluetoothManagerService.BluetoothHandler
IBluetoothManagerCallback callback = (IBluetoothManagerCallback) msg.obj;
^
frameworks/base/services/java/com/android/server/BluetoothManagerService.java:730: cannot find symbol
symbol : class IBluetoothManagerCallback
location: class com.android.server.BluetoothManagerService.BluetoothHandler
IBluetoothManagerCallback callback = (IBluetoothManagerCallback) msg.obj;
^
frameworks/base/services/java/com/android/server/BluetoothManagerService.java:769: cannot find symbol
symbol : method registerCallback(android.bluetooth.IBluetoothCallback)
location: interface android.bluetooth.IBluetooth
mBluetooth.registerCallback(mBluetoothCallback);
^
frameworks/base/services/java/com/android/server/BluetoothManagerService.java:889: cannot find symbol
symbol : method unregisterCallback(android.bluetooth.IBluetoothCallback)
location: interface android.bluetooth.IBluetooth
mBluetooth.unregisterCallback(mBluetoothCallback);
^
frameworks/base/services/java/com/android/server/BluetoothManagerService.java:977: cannot find symbol
symbol : method registerCallback(android.bluetooth.IBluetoothCallback)
location: interface android.bluetooth.IBluetooth
mBluetooth.registerCallback(mBluetoothCallback);
^
frameworks/base/services/java/com/android/server/BluetoothManagerService.java:1012: disable(boolean) in android.bluetooth.IBluetooth cannot be applied to ()
if(!mBluetooth.disable()) {
^
frameworks/base/services/java/com/android/server/BluetoothManagerService.java:1081: cannot find symbol
symbol : method getState()
location: interface android.bluetooth.IBluetooth
if (mBluetooth.getState() == BluetoothAdapter.STATE_ON) return true;
^
frameworks/base/services/java/com/android/server/BluetoothManagerService.java:1083: cannot find symbol
symbol : method getState()
location: interface android.bluetooth.IBluetooth
if (mBluetooth.getState() == BluetoothAdapter.STATE_OFF) return true;
^
frameworks/base/services/java/com/android/server/BluetoothManagerService.java:1085: cannot find symbol
symbol : method getState()
location: interface android.bluetooth.IBluetooth
if (mBluetooth.getState() != BluetoothAdapter.STATE_ON) return true;
^
frameworks/base/services/java/com/android/server/BluetoothManagerService.java:1122: cannot find symbol
symbol : method getState()
location: interface android.bluetooth.IBluetooth
return (mBluetooth.getState() == BluetoothAdapter.STATE_OFF);
^
target Dex: DrmProvider
Initializing...
target Package: Nfc (/home/bart452/beergang/out/target/product/p700/obj/APPS/Nfc_intermediates/package.apk)
Reading library jar [/home/bart452/beergang/out/target/common/obj/JAVA_LIBRARIES/framework_intermediates/classes.jar]Reading library jar [/home/bart452/beergang/out/target/common/obj/JAVA_LIBRARIES/telephony-common_intermediates/classes.jar]

packages/apps/Settings/src/com/android/settings/bluetooth/PbapServerProfile.java:48: com.android.settings.bluetooth.PbapServerProfile.PbapServiceListener is not abstract and does not override abstract method onServiceConnected() in android.bluetooth.BluetoothPbap.ServiceListener
private final class PbapServiceListener
^
Reading library jar [/home/bart452/beergang/out/target/common/obj/JAVA_LIBRARIES/telephony-common_intermediates/classes.jar]
Note: the configuration refers to the unknown class 'com.android.stk.StkSettings'
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: Some input files use unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
21 errors

How do I solve these symbol not found errors?