コンパイル問題:user tag detected on new module

gingerbread ＃ make
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PLATFORM_VERSION_CODENAME=REL
PLATFORM_VERSION=2.3.1
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=GRH78
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build/core/base_rules.mk:74: *** Module name: MediaTest
build/core/base_rules.mk:75: *** Makefile location: packages/My/MediaTest
build/core/base_rules.mk:76: *  
build/core/base_rules.mk:77: * Each module must use a LOCAL_MODULE_TAGS in its
build/core/base_rules.mk:78: * Android.mk. Possible tags declared by a module:
build/core/base_rules.mk:79: *  
build/core/base_rules.mk:80: * optional， debug， eng， tests， samples
build/core/base_rules.mk:81: *  
build/core/base_rules.mk:82: * If the module is expected to be in all builds
build/core/base_rules.mk:83: * of a product， then it should use the
build/core/base_rules.mk:84: * "optional" tag:  
build/core/base_rules.mk:85: *  
build/core/base_rules.mk:86: * Add "LOCAL_MODULE_TAGS := optional" in the
build/core/base_rules.mk:87: * Android.mk for the affected module， and add
build/core/base_rules.mk:88: * the LOCAL_MODULE value for that component
build/core/base_rules.mk:89: * into the PRODUCT_PACKAGES section of product
build/core/base_rules.mk:90: * makefile（s） where it""s necessary， if
build/core/base_rules.mk:91: * appropriate.
build/core/base_rules.mk:92: *  
build/core/base_rules.mk:93: * If the component should be in EVERY build of ALL
build/core/base_rules.mk:94: * products， then add its LOCAL_MODULE value to the
build/core/base_rules.mk:95: * PRODUCT_PACKAGES section of
build/core/base_rules.mk:96: * build/target/product/core.mk
build/core/base_rules.mk:97: *  
build/core/base_rules.mk:98: *** user tag detected on new module - user tags are only supported on legacy modules. Stop.