[Android Software/Hacking General [Developers Only]] void00:
Hi, I'm getting the following errors while building Beanstalk

http://pastebin.com/6aRWwffQ

target Java: Bluetooth (/home/res/Android/beanstalk/out/target/common/obj/APPS/Bluetooth_intermediates/classes)
packages/apps/Trebuchet/src/com/android/launcher3/LockWallpaperPickerActivity.java:53: package android.provider.ThemesContract does not exist
import android.provider.ThemesContract.ThemesColumns;
^
packages/apps/Trebuchet/src/com/android/launcher3/LockWallpaperPickerActivity.java:127: cannot find symbol
symbol : method clearKeyguardWallpaper()
location: class android.app.WallpaperManager
am.clearKeyguardWallpaper();
^
packages/apps/Trebuchet/src/com/android/launcher3/LockWallpaperPickerActivity.java:193: cannot find symbol
symbol : variable legacyThemeInfos
location: class android.content.pm.PackageInfo
int resId = pi.legacyThemeInfos[0].wallpaperResourceId;
^
packages/apps/Trebuchet/src/com/android/launcher3/LockWallpaperPickerActivity.java:351: cannot find symbol
symbol : variable legacyThemeInfos
location: class android.content.pm.PackageInfo
int resId = pi.legacyThemeInfos[0].wallpaperResourceId;
^
packages/apps/Trebuchet/src/com/android/launcher3/LockWallpaperPickerActivity.java:647: cannot find symbol
symbol : method setKeyguardStream(java.io.InputStream)
location: class android.app.WallpaperManager
wallpaperManager.setKeyguardStream(mInStream);
^
packages/apps/Trebuchet/src/com/android/launcher3/LockWallpaperPickerActivity.java:800: cannot find symbol
symbol : method setKeyguardStream(java.io.ByteArrayInputStream)
location: class android.app.WallpaperManager
wallpaperManager.setKeyguardStream(new ByteArrayInputStream(outByteArray));
^
packages/apps/Trebuchet/src/com/android/launcher3/LockWallpaperPickerActivity.java:1334: cannot find symbol
symbol : variable ThemesColumns
location: class com.android.launcher3.LockWallpaperPickerActivity
String[] projection = { ThemesColumns.PKG_NAME, ThemesColumns.IS_LEGACY_THEME };
^
packages/apps/Trebuchet/src/com/android/launcher3/LockWallpaperPickerActivity.java:1334: cannot find symbol
symbol : variable ThemesColumns
location: class com.android.launcher3.LockWallpaperPickerActivity
String[] projection = { ThemesColumns.PKG_NAME, ThemesColumns.IS_LEGACY_THEME };
^
packages/apps/Trebuchet/src/com/android/launcher3/LockWallpaperPickerActivity.java:1335: cannot find symbol
symbol : variable ThemesColumns
location: class com.android.launcher3.LockWallpaperPickerActivity
String selection = ThemesColumns.MODIFIES_LAUNCHER + "=? AND " +
^
packages/apps/Trebuchet/src/com/android/launcher3/LockWallpaperPickerActivity.java:1336: cannot find symbol
symbol : variable ThemesColumns
location: class com.android.launcher3.LockWallpaperPickerActivity
ThemesColumns.PKG_NAME + "!=?";
^
packages/apps/Trebuchet/src/com/android/launcher3/LockWallpaperPickerActivity.java:1339: cannot find symbol
symbol : variable ThemesColumns
location: class com.android.launcher3.LockWallpaperPickerActivity
Cursor c = cr.query(ThemesColumns.CONTENT_URI, projection, selection,
^
packages/apps/Trebuchet/src/com/android/launcher3/LockWallpaperPickerActivity.java:1344: cannot find symbol
symbol : variable ThemesColumns
location: class com.android.launcher3.LockWallpaperPickerActivity
String pkgName = c.getString(c.getColumnIndexOrThrow(ThemesColumns.PKG_NAME));
^
packages/apps/Trebuchet/src/com/android/launcher3/LockWallpaperPickerActivity.java:1346: cannot find symbol
symbol : variable ThemesColumns
location: class com.android.launcher3.LockWallpaperPickerActivity
ThemesColumns.IS_LEGACY_THEME)) == 1;
^
packages/apps/Trebuchet/src/com/android/launcher3/LockWallpaperPickerActivity.java:1365: cannot find symbol
symbol : variable ThemesColumns
location: class com.android.launcher3.LockWallpaperPickerActivity
String[] projection = { ThemesColumns.PKG_NAME };
^
packages/apps/Trebuchet/src/com/android/launcher3/LockWallpaperPickerActivity.java:1366: cannot find symbol
symbol : variable ThemesColumns
location: class com.android.launcher3.LockWallpaperPickerActivity
String selection = ThemesColumns.MODIFIES_LOCKSCREEN + "=? AND " +
^
packages/apps/Trebuchet/src/com/android/launcher3/LockWallpaperPickerActivity.java:1367: cannot find symbol
symbol : variable ThemesColumns
location: class com.android.launcher3.LockWallpaperPickerActivity
ThemesColumns.PKG_NAME + "!=?";
^
packages/apps/Trebuchet/src/com/android/launcher3/LockWallpaperPickerActivity.java:1370: cannot find symbol
symbol : variable ThemesColumns
location: class com.android.launcher3.LockWallpaperPickerActivity
Cursor c = cr.query(ThemesColumns.CONTENT_URI, projection, selection,
^
packages/apps/Trebuchet/src/com/android/launcher3/LockWallpaperPickerActivity.java:1375: cannot find symbol
symbol : variable ThemesColumns
location: class com.android.launcher3.LockWallpaperPickerActivity
String pkgName = c.getString(c.getColumnIndexOrThrow(ThemesColumns.PKG_NAME));
^
packages/apps/Trebuchet/src/com/android/launcher3/LockWallpaperPickerActivity.java:1572: cannot find symbol
symbol : variable legacyThemeInfos
location: class android.content.pm.PackageInfo
int resId = pi.legacyThemeInfos[0].wallpaperResourceId;
^
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: packages/apps/Trebuchet/src/com/android/gallery3d/glrenderer/BasicTexture.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
19 errors
make: *** [/home/res/Android/beanstalk/out/target/common/obj/APPS/Trebuchet_intermediates/classes-full-debug.jar] Error 41
make: *** Waiting for unfinished jobs....
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.
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.

Should I revert the Trebuchet package? Or is there any other solution other than removing this package?