@@ -48,7 +48,7 @@ func (g *SourceRefGenerator) FromDirectory(directory string) (*app.SourceRef, er

 	// Make sure that this is a git directory

 	gitRoot, err := g.repository.GetRootDir(directory)

 	if err != nil {

-		return nil, err

+		return nil, fmt.Errorf("could not obtain git repository root for %s. The directory may not be part of a valid source repository.", directory)

 	}

 	// Get URL