Android Error: Unable to open class file R.java

原文 http://www.cnblogs.com/hakuci/archive/2010/11/15/1877659.html

 

You’ve just installed Eclipse , and attempted to create your first Android Application. When clicking create, you see an error similar to this: "Error: Unable to open class file R.java "

如果出现 “Error: Unable to open class file R.java No such file or directory”。

 

Solution:解决方法：

The “Build Path” for your Java environment is not setup correctly in Eclipse. To fix this, follow these steps:

1) Open the Preferences Window by clicking “Window -> Preferences”

2) Find the “Java” section and expand it

3) Select “Build Path ”

4) Change the value of Source and output folder from Folders to “Project”

5) Click Apply and then “OK ”

Your problem should be resolved!

勾选“Project”

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