Hello, I have developed an app with Xcode 3.2.5. This app is localized (English and French). I have migrated to Xcode 4, added a .xib file in my app and localized it and now it's a mess: although build is successful, the app quit on startup because mainmenu.xib is missing. If I switch my language to English in the System preferences, the app run fine, so it seems to be a problem with the french localization. I found that Xcode added a new folder "fr.lproj" in addition to the already existing "French.lproj". It seems that Xcode doesn't look in French.lproj anymore and that's why it can't find mainmenu.xib. I am trying to copy/paste files from one folder to the other but with mixed results. I'm afraid I will have to remove all localizations and start from scratch in Xcode 4.