Eclipse 出现错误，最近更新后缺少 R.java 文件 [英] Eclipse giving error, missing R.java file after recent update

问题描述

我已经更新了我的 SDK 和 ADT 到最新版本，我也更新了 Eclipse 到 Kepler> Juno 之后的最新一个.

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.在此更新之后，当我创建一个新项目时，出现错误，指出 R 无法解析为变量.我已经导入了 import android.R;，但它显示为未使用的导入，说明 Don't include android.R here;为每个用法使用一个完全限定的名称.

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 上，也有最新的更新.我尝试将 activity_main.xml 重命名为其他名称，但仍然没有生成我的 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.

尝试了所有可能的事情.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.

我认为更新后 ADT 或 Eclipse 兼容性有问题.

I think ADT or Eclipse compatibility is having problem after the update.

我已经更新了我的整个 SDK，这是屏幕截图，但还是存在同样的问题.

I have updated my whole SDK, here is the screenshot, but same problem is there.

推荐答案

更新到 SDK Tools 后22 首次使用时，您可能需要再次重新启动 Android SDK Manager 并安装一个新项目:Android SDK Build-tools.

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.

安装后，清理你的项目并重建.

After installing this, clean your projects and rebuild.

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