找不到R.java

安装了eclipse,AndroidSDK,新建一个工程,编译,提示找不到R.java错误:

ERROR: F:\Android\... ...\R.java: No such file or directory

 解决方法:

1.-Open Eclipse

2.-Open Window/Preference

3.-Expand JAVA option

4.-Select Build Path

5.-Check the option "Projec"t and uncheck "folder" options

6.-Click on OK

7.-Restart eclipse IDE