android源码编译问题

我用mmm packages/apps/Contacts 不能正常生产apk============================================
PLATFORM_VERSION_CODENAME=REL
PLATFORM_VERSION=2.3.7
TARGET_PRODUCT=full
TARGET_BUILD_VARIANT=eng
TARGET_SIMULATOR=false
TARGET_BUILD_TYPE=release
TARGET_BUILD_APPS=
TARGET_ARCH=arm
HOST_ARCH=x86
HOST_OS=linux
HOST_BUILD_TYPE=release
BUILD_ID=GWK74
============================================
make:进入目录'/home/archermind/training/gingerbread'
make: *** packages/apps/Contacts: 是一个目录。 停止。
make:离开目录“/home/archermind/training/gingerbread”红字为出问题地方。