Trying to checkout packages/gscore/gscore-files resulted in an error when checking out both Debian/ and debian/.

REASON: Mac OS X similar to Windows uses a case-insensitive file system. There is a case-sensitive file system available; however, many commerical applications fail to work under that environment.

SUGGESTED ACTION: Rename one of the two directories.

NOTE: Many environments I have worked in would consider this to be bad form anyhow.