Localization is required in one of the project. By default, csla is built for en-US for other cultures it generates satellite assemblies placed in folders something like ar/Csla.resources.dll bs/Csla.resources.dll etc
I've tried to to put Csla.resources.dll for (for example "ar") in to my some local dll store. Then refereneced it in my project. It successfully copied into BIN directory of my application next to "csla.dll". But, when I run the application the error messages for broken business rules appear only in pure English. after experiments I've found that if I create (manually) a folder "ar" in my "bin" directory and then copy there Csla.resources.dll then everything is OK and I see localized error messages.
Is there a way not to manually create directory, copy Csla.resources.dll etc but instead just to reference Csla.resources.dll in project and all that creation/coping will do automatically?
Right now the Csla NuGet package does not include localized resources, so I think your solution is the best workaround.
I have created a backlog item to add the localized resources in a future release.