I import my project into eclipse, but compiler shows error because R.java file is missing.
This is what appears in the log screen:
[2012-01-11 15:35:41 - Check-list-AndroidApplication1] ERROR: Unable to open class file C:\Workspace\Android\Check-list-AndroidApplication1\gen\com\mobyfactory\uiwidgets\R.java: No such file or directory
Do what @Metalfrekans said again, and set Build Automatically, then saved the file and Eclipse should generate the R.java