初涉及Andriod App开发,按照文档搭建开发环境时,如果某一步没有执行成功就有可能如有下面的问题,无法选择Theme, 不论是Holo Light with Dark Action Bar, 还是Holo Light, Holo Dark,甚至是None。如下图,这里的原因是Andriod SDK并没有安装成功。
解决办法:
重新安装Andriod SDK。
先下载Andriod SDK Manager, 然后通过SDK Manager来下载SDK等其他包。这里要注意的是,如果总是失败,遇到connection Refused,如下面的错误,很有可能就是你在使用代理,但却没有设置SDK Manager的网路设置。
*SDK manager Log* Fetching https://dl-ssl.google.com/android/repository/addons_list-2.xml Fetched Add-ons List successfully Fetching URL: https://dl-ssl.google.com/android/repository/repository-10.xml Done loading packages. Fetching https://dl-ssl.google.com/android/repository/addons_list-2.xml Failed to fetch URL https://dl-ssl.google.com/android/repository/addons_list-2.xml, reason: Connection to https://dl-ssl.google.com refused Fetched Add-ons List successfully Fetching URL: https://dl-ssl.google.com/android/repository/repository-10.xml Failed to fetch URL https://dl-ssl.google.com/android/repository/repository-10.xml, reason: HttpHostConnect Connection to https://dl-ssl.google.com refused Done loading packages. Fetching URL: https://dl-ssl.google.com/android/repository/repository-10.xml Failed to fetch URL https://dl-ssl.google.com/android/repository/repository-10.xml, reason: File not found Done loading packages. Fetching URL: http://dl-ssl.google.com/android/repository/repository-10.xml Failed to fetch URL http://dl-ssl.google.com/android/repository/repository-10.xml, reason: File not found Done loading packages.
或检查其是否设置正确:
进入Eclipse Window -> Preferences -> Andriod -> SDK Location
如图: