構建特定的Android平臺？

Question

我一直在試圖構建Android平臺的「/ libcore」目錄。當我嘗試mmm libcore我結束了以下的輸出：

============================================ 
PLATFORM_VERSION_CODENAME=REL 
PLATFORM_VERSION=2.1-update1 
TARGET_PRODUCT=generic 
TARGET_BUILD_VARIANT=eng 
TARGET_SIMULATOR=false 
TARGET_BUILD_TYPE=release 
TARGET_ARCH=arm 
HOST_ARCH=x86 
HOST_OS=linux 
HOST_BUILD_TYPE=release 
BUILD_ID=ECLAIR 
============================================ 
make: Entering directory `/home/chris/android/platform' 
target Prebuilt: (out/target/product/generic/system/etc/security/cacerts.bks) 
host Prebuilt: run-core-tests-on-ri (out/host/linux-x86/obj/EXECUTABLES/run-core-tests-on-ri_intermediates/run-core-tests-on-ri) 
target Prebuilt: run-core-tests (out/target/product/generic/obj/EXECUTABLES/run-core-tests_intermediates/run-core-tests) 
Copy: out/target/product/generic/system/etc/apns-conf.xml 
Copying: out/target/common/obj/JAVA_LIBRARIES/core_intermediates/classes-full-debug.jar 
Copying: out/target/common/obj/JAVA_LIBRARIES/core-tests_intermediates/classes-full-debug.jar 
/bin/bash: jar: command not found 
make: *** [out/host/common/core-tests.jar] Error 127 
make: *** Deleting file `out/host/common/core-tests.jar' 
make: Leaving directory `/home/chris/android/platform' 

有沒有人有什麼錯誤127是任何建議，或另一種方法，我可以着手建立「libcore」，而無需再次構建整個平臺？

謝謝， 克里斯

Answer 1

它說： 「罐子：命令未找到」

你確定你已經安裝了Java SDK？