环境： Ubuntu 11.10 x64: 

1. 安装 

/opt/eclipse/android-sdk-linux/platform-tools/adb: error while loading shared libraries:libncurses.so.5: wrong ELF class: ELFCLASS64 

解决方案： apt-get install ia32-libs 

2. Eclipse不能安装adt插件 

打开eclipse： 

windows->preferences->Install/Update->Avai... 

选中或添加以下两个网址， 

         GEF Update Site :  http://download.eclipse.org/tools/gef/updates/releases/ 

         galileo  :  http://download.eclipse.org/releases/galileo 

进入help->Install new software,先选择GEF进行升级，（应该只升级对应版本即可，不过我把所有的都选了） 

                                                         再升级WST，这个在galileo的最后面，耐心找一下吧，而且galileo加载也会很慢，稍等即可。 

期间按照提示，选择重启或OK，应该会很顺利地。 

如果GEF update Site打不开，直接去 http://www.eclipse.org/galileo/projects.php 查找对应的网址 

Eclipse的版本是3.5.2，配置Android的开发环境时遇到问题…… 

按照Android官方文档一步步安装，到了安装Eclipse的ADT插件时，提示“requires 'org.eclipse.gef 0.0.0' but it could not be found”，找了很久终于解决问题： 

缺少GEF，Eclipse's Graphic Editing Framework，下面是这个插件的地址： 

http://download.eclipse.org/tools/gef/updates/releases/ 

在Eclipse的菜单栏Help->Install New Software中添加这一项，然后选择对应Eclipse版本的选项安装好即可。 

原文地址在此（感谢这位哥们儿，贡献一个链接） 

http://tewson.com/content/orgeclipsegef-000-required-installing-android-development-tools-eclipse-351 

另外在安装ADT时还需要添加以下站点以便自动安装依赖的组件： 

Eclipse GEF      - http://download.eclipse.org/tools/gef/updates/releases/ 

Eclipse EMF      - http://download.eclipse.org/modeling/emf/updates/releases/ 

Eclipse GMF      - http://download.eclipse.org/modeling/gmf/updates/releases 

Eclipse Webtools - http://download.eclipse.org/webtools/updates/ 

Google eclipse Plugin - http://dl.google.com/eclipse/plugin/3.5 

3. Unable to find a 'userdata.img' file for ABI armeabi to copy into the AVD folder. 

解决方案: If you look in the "Android SDK Manager" in the "Android 4.0 (API 14)" section you'll see a few packages. 

One of these is named "ARM EABI v7a System Image" 

This is what you need to download in order to create an android 4.0 virtual device.