如何在Android上同时拥有res/values-pt_PT和res/ value- pt_br ?

I keep getting an error when creating folders for internationalization. But the errors appear just for folders with the name like values-xx_XX. If I have values-xx everything is ok, but like I asked in the title I want to make 2 separate folders for the (aprox.)the same language: values-pt_PT,values-pt_BR. How can I do that without getting any errors? Note: The error is not specified anywhere, the eclipse is just marking the folder with a red cross and doesn't allow me to run the project.I keep getting an error when creating folders f