缺少即使项目清理R.java文件 [英] Missing R.java file even though project cleaned

问题描述

在code每一次，我有一个R，我得到一个错误R 1不能被解析到一个变量。

Every time in code that I have an R, I get an error R cannot be resolved to a variable.

在R.java文件似乎丢失。

The R.java file appears to be missing.

我试图清理项目。

推荐答案

当你在你的XML文件中的一个错误可能发生这种情况（例如，资源无法找到）。这也可能发生通过菜单来使用的，因为（我有，因为菜单的这个问题，我不得不删除它们，干净，再次加入）。而另一个可能的原因是，你最初想有你的R舱没有在它创建的​​默认位置，但在自己的包。因此，它是可能的，R的默认位置创建您的程序正在寻找它在其他地方。

This can happen when you have an error in one of your xml files (for example, a resource cannot be found). This can also happen because of using menus (I have had this problem because of menus, and I had to remove them, clean and add them again). And another possible reason is that you initially wanted to have your R class not in the default place where it is created but in your own package. So it is possible that R is created in its default location and your program is looking for it somewhere else.

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