今天,在ubuntu10.4平台在安装AD发生错误：
Cannot complete the install because one or more required items could not be found. Software being installed: Android Development Tools 0.9.7.v201005071157-36220 (com.android.ide.eclipse.adt.feature.group 0.9.7.v201005071157-36220) Missing requirement: Android Development Tools 0.9.7.v201005071157-36220 (com.android.ide.eclipse.adt.feature.group 0.9.7.v201005071157-36220) requires 'org.eclipse.gef 0.0.0' but it could not be found
查了好多帖子也不能解决，最后在一个帖子上说要先安装GEF和WST，我抱着死 马当成活马医的心态试了试，结果成了！
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。
最后 安装好了，建一个helloandroid试试，建个2.2的avd，以下是test结果
[2010-09-04 09:55:56 - HelloAndroid] ------------------------------
[2010-09-04 09:55:56 - HelloAndroid] Android Launch!
[2010-09-04 09:55:56 - HelloAndroid] adb is running normally.
[2010-09-04 09:55:56 - HelloAndroid] Performing miumiu.helloAndroid.helloAndroid activity launch
[2010-09-04 09:55:56 - HelloAndroid] Automatic Target Mode: using existing emulator 'emulator-5554' running compatible AVD 'android2.2'
[2010-09-04 09:55:56 - HelloAndroid] WARNING: Application does not specify an API level requirement!
[2010-09-04 09:55:56 - HelloAndroid] Device API version is 8 (Android 2.2)
[2010-09-04 09:56:02 - HelloAndroid] Uploading HelloAndroid.apk onto device 'emulator-5554'
[2010-09-04 09:56:02 - HelloAndroid] Installing HelloAndroid.apk...
[2010-09-04 09:56:40 - HelloAndroid] Success!
[2010-09-04 09:56:40 - HelloAndroid] Starting activity miumiu.helloAndroid.helloAndroid on device
[2010-09-04 09:56:42 - HelloAndroid] ActivityManager: Starting: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] cmp=miumiu.helloAndroid/.helloAndroid }