小弟新手请大侠指点下android 单个模块编译时出现问题

root@ubuntu:/home/a/plat/hardware/libhardware_legacy# mmm gps
============================================
PLATFORM_VERSION_CODENAME=REL
PLATFORM_VERSION=2.3.3
TARGET_PRODUCT=generic
TARGET_BUILD_VARIANT=eng
TARGET_SIMULATOR=
TARGET_BUILD_TYPE=release
TARGET_BUILD_APPS=
TARGET_ARCH=arm
HOST_ARCH=x86
HOST_OS=linux
HOST_BUILD_TYPE=release
BUILD_ID=GRI40
============================================
make: Entering directory `/home/a/plat'
make: *** No rule to make target `out/target/product/generic/obj/lib/liblog.so', needed by `out/target/product/generic/obj/SHARED_LIBRARIES/libgps_intermediates/LINKED/libgps.so'.  Stop.
make: Leaving directory `/home/a/plat'
root@ubuntu:/home/a/plat/hardware/libhardware_legacy# 
在网上搜了好久不知道解决方法 感觉是PATH的问题不知道如何下手 高人指点下 谢谢