Using the workaround suggested by Skyler_S and Nekitosss works! The only scenario in which it doesn't is when you are using the bundle in UI Tests. I've found that it's sufficient to add:
swift
Bundle(for: CurrentBundleFinder.self).resourceURL?.deletingLastPathComponent()
to the list of candidates:
swift
let candidates = [
/* Bundle should be present here when the package is linked into an App. */
Bundle.main.resourceURL,
/* Bundle should be present here when the package is linked into a framework. */
Bundle(for: CurrentBundleFinder.self).resourceURL,
/* Bundle should be present here when the package is used in UI Tests. */
Bundle(for: CurrentBundleFinder.self).resourceURL?.deletingLastPathComponent(),
/* For command-line tools. */
Bundle.main.bundleURL,
/* Bundle should be present here when running previews from a different package (this is the path to "…/Debug-iphonesimulator/"). */
Bundle(for: CurrentBundleFinder.self).resourceURL?.deletingLastPathComponent().deletingLastPathComponent().deletingLastPathComponent(),
Bundle(for: CurrentBundleFinder.self).resourceURL?.deletingLastPathComponent().deletingLastPathComponent()
]
