// dependencies.
			vendorMod := module.Version{Path: "vendor/modules.txt", Version: ""}
			if inWorkspaceMode() {
				for _, m := range MainModules.Versions() {
					reqs, _ := rootsFromModFile(m, MainModules.ModFile(m), omitToolchainRoot)
					mg.g.Require(m, append(reqs, vendorMod))
				}
				mg.g.Require(vendorMod, vendorList)

			} else {