无法完成安装，因为一个或多个必需项目无法找到。     软件安装：Android开发工具12.0.0.v201106281929-138431（com.android.ide.eclipse.adt.feature.group 12.0.0.v201106281929-138431）     缺少要求：Android开发工具12.0.0.v201106281929-138431（com.android.ide.eclipse.adt.feature.group 12.0.0.v201106281929-138431）要求org.eclipse.gef 0.0.0，但它不能找到

Cannot complete the install because one or more required items could not be found. Software being installed: Android Development Tools 12.0.0.v201106281929-138431 (com.android.ide.eclipse.adt.feature.group 12.0.0.v201106281929-138431) Missing requirement: Android Development Tools 12.0.0.v201106281929-138431 (com.android.ide.eclipse.adt.feature.group 12.0.0.v201106281929-138431) requires 'org.eclipse.gef 0.0.0' but it could not be found

一些信息：

的Eclipse SDK版本：3.6.2 的jdk-6u26-窗口-i586系统 在Windows 7中

在如何解决这个必需的项目无法找到的错误有什么建议？

Any suggestions on how to solve this 'required items could not be found' error?

推荐答案

曾经有过同样的问题了几次。您需要将以下网址添加到可用软件站点Eclipse安装的：

Have had the same problem a few times. You need to add the following urls to the "Available Software Sites" of your eclipse installation:

http://download.eclipse.org/releases/indigo http://download.eclipse.org/eclipse/updates/3.7 http://download.eclipse.org/releases/indigo http://download.eclipse.org/eclipse/updates/3.7

这应该修复它。

如果没有，看我的安装路径，并根据需要添加：

If not, see my install paths, and add as needed:

此外，还要确保你打勾的安装，上面写着请所有的更新站点，在安装过程中找到所需的软件框。

Also, make sure you tick the box on install that says "Contact all update sites during install to find required software".