Change to abort if no precompiled binary nor source is available

crew

@@ -171,7 +171,9 @@ def download
   url = @pkg.get_url(@device[:architecture])
   source = @pkg.is_source?(@device[:architecture])
 
-  if !source
+  if !url
+    abort "No precompiled binary for #{@device[:architecture]} nor source is available."
+  elsif !source
     puts "Precompiled binary available, downloading..."
   elsif @pkg.build_from_source
     puts "Downloading source..."