I'm trying to create a tabbed interface using the example here Tab Layout | Android Developers but I accidentally ran the main.xml and it created a main.out.xml, then the problems came. I deleted the main.out and restarted Eclipse and now it says there is an error with my package, imports, and pretty much everything. I didn't change any code from when it was working, but I cant get it back to working either. did the main.out.xml screw me over? I'm new to android dev, so I decided to start with a few test programs, now I moved to testing out a tabbed interface. I kept running into this problem while creating the other examples, but I just had to start a new project and copy and paste the code and it would start working again. Any help is appreciated!