1、选择 Help Install New Software; 2、在Details 面板中, 点击What is already installed? 链接; 3、在Eclipse Installation Details 对话框中,选择Android DDMS和Android Development Tools ,然后点击Uninstall; 4、在下一个窗口中,确认要删除的ADT,然后点击Finish进行删除; 5、重启Eclipse.