WARNING ITMS-90176 - Unrecognized locale base.lproj

Question

Since I updated to XCode 10, I get the following warning when uploading my app to the App Store:

Unrecognized Locale - The locale names used in localization directories at ('Payload/MyApp.app/base.lproj') are invalid. iTunes supports BCP47 but not the UN M.49 specification. Refer to the Language and Locale Designations guide for more information on naming your language-specific directories.

Any idea how to solve this?

If not, is there a possibility to find out if this warning still occurs without doing a complete upload?

Answer 1

It seems like only .storyboard and .xib files should be placed in base internationalization directories.

I moved all my .strings files from base.lproj to en.lproj directories, now the warning is gone.