问题描述
我已将我的 SDK 和 ADT 更新到最新版本，我也更新了 Eclipse 到开普勒最后一个 Juno 。
I have updated my SDK and ADT to the latest version, I have also update the Eclipse to Kepler the latest one after Juno.
我的 ADT 版本是 22.0 。在我创建一个新项目的这个更新之后，我收到错误，指出 R无法解析为变量。我已导入 import android.R; ，但它显示为未使用的导入说明不要在此包含android.R;为每个使用而使用完全限定名称。
My ADT version is 22.0. After this update when I create a new project, I'm getting error, stating R cannot be resolved to a variable. I have imported import android.R;, but it is showing as unused import stating Don't include android.R here; use a fully qualified name for each usage instead.
同样的事情发生在Mac OS也有最新的更新。我尝试将 activity_main.xml 重命名为其他名称，但仍然不生成我的 R.java 。
Same thing is happening with Mac OS also with the latest update. I have tried renaming activity_main.xml to other name, but still my R.java is not generated.
尝试所有可能的东西。清理项目，构建整个工作区。没有任何帮助。
Tried all the things which are possible. Cleaned the project, build the whole workspace. Nothing helping.
我认为 ADT 或 Eclipse 兼容性在更新后有问题。
I think ADT or Eclipse compatibility is having problem after the update.
我已经更新了我的整个SDK，这里是截图，但同样的问题是。
I have updated my whole SDK, here is the screenshot, but same problem is there.
推荐答案
更新到SDK Tools to rev。 22第一次，您可能需要重新启动Android SDK Manager并安装新的项目： Android SDK构建工具。
After updating to SDK Tools to rev. 22 for the first time, you may need to relaunch Android SDK Manager again and install a new item: Android SDK Build-tools.
之后安装它，清理您的项目并重建。
After installing this, clean your projects and rebuild.
这篇关于Eclipse发生错误，最近更新后缺少R.java文件的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！