Confusing error if versions of local dependencies don't align

[rylev]

In a wit file I was referring to a dependency wit package but forgot to attach a version to it. Naturally, resolution failed as I don't have an unversioned package with that name listed as a dependency. However, this was very confusing as the configuration in Cargo.toml doesn't use a version (when the dependency is local). Perhaps, the resolver could search for packages with the same name and different version when building the error message?