Android构建失败

我已经下载了Android SDK工具。解压缩文件，然后在目录工具中运行这些命令

/android更新sdk——没有ui

/android create project--target 1--name MyApp--path./MyApp--activity MyAppActivity--package com.example.MyApp

cd MyApp

ant调试

并获取以下错误：

构建失败 /home/live/devel/android/tools/MyApp/build.xml:90:执行此行时发生以下错误： /home/live/devel/android/tools/ant/build.xml:108:taskdef找不到com.android.ant.SignApkTask类所需的类：com.android.ant.SignApkTask 使用类加载器和类加载器[/home/live/devel/android/tools/lib/anttasks.jar:/home/live/devel/android/tools/lib/guava tools.jar:/home/live/devel/android/tools/lib/sdklib.jar:/home/live/devel/android/tools/lib/layoutlib\u api.jar:/home/live/devel/android/android/tools/tools/lib/lib/commons-1.0.jar:/home/live/devel/devel/devel/android/android/android/tools/lib/ht/tpclient-4.1.1.jar:/home/live/devel/android/tools/lib/httpcore-4.1.jar:/home/live/devel/tools/httpime-4.1.jar:/home/live/devel/android/tools/lib/commons-logging-1.1.jar:/home/live/devel/android/tools/tools/lib/lib/commons-codec-1.4.jar:/home/live/devel/android/tools/dvlib/dvlib/devel/manifmerger.jar]

系统信息：

lived@dama:~> cat /etc/SuSE-release
openSUSE 12.2 (x86_64)
VERSION = 12.2
CODENAME = Mantis

lived@dama:~> java -version
java version "1.7.0_09"
OpenJDK Runtime Environment (IcedTea7 2.3.3) (suse-3.16.1-x86_64)
OpenJDK 64-Bit Server VM (build 23.2-b09, mixed mode)

lived@dama:~> javac --version
javac (SUSE Linux) 4.7.1 20120723 [gcc-4_7-branch revision 189773]
Copyright (C) 2012 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

lived@dama:~> ant -version
Apache Ant(TM) version 1.8.2 compiled on June 23 2012

我错过什么了吗

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谢谢

我通过安装包java-1\u 7\u 0-openjdk-devel解决了这个问题。之前我只安装了patters-openSUSE-devel\u java