frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/tablet/TabletStatusBar.java:679: error: cannot find symbol
        mBackButton = (ImageView)sb.findViewById(R.id.back);
        ^
  symbol:   variable mBackButton
  location: class TabletStatusBar
frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java:797: error: cannot find symbol
        mSignalView = (SignalClusterView) mStatusBarView.findViewById(R.id.signal_cluster);
        ^
  symbol:   variable mSignalView
  location: class PhoneStatusBar
frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java:798: error: cannot find symbol
        mSignalTextView = (SignalClusterTextView) mStatusBarView.findViewById(R.id.signal_cluster_text);
        ^
  symbol:   variable mSignalTextView
  location: class PhoneStatusBar
frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java:798: error: cannot find symbol
        mSignalTextView = (SignalClusterTextView) mStatusBarView.findViewById(R.id.signal_cluster_text);
                           ^
  symbol:   class SignalClusterTextView
  location: class PhoneStatusBar
frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java:801: error: cannot find symbol
        mSignalView.setNetworkController(mNetworkController);
        ^
  symbol:   variable mSignalView
  location: class PhoneStatusBar
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.
5 errors