diff --git a/lib/motion/project/template/osx/config.rb b/lib/motion/project/template/osx/config.rb
index 33ac788c..4c128eea 100644
--- a/lib/motion/project/template/osx/config.rb
+++ b/lib/motion/project/template/osx/config.rb
@@ -173,7 +173,7 @@ module Motion; module Project;
 
     def supported_sdk_versions(versions)
       versions.reverse.find { |vers|
-        Util::Version.new(osx_version) <= Util::Version.new(vers) && File.exist?(datadir(vers))
+        Util::Version.new(deployment_target) <= Util::Version.new(vers) && File.exist?(datadir(vers))
       }
     end
     
diff --git a/lib/motion/project/xcode_config.rb b/lib/motion/project/xcode_config.rb
index 2219d118..a47c1ccc 100644
--- a/lib/motion/project/xcode_config.rb
+++ b/lib/motion/project/xcode_config.rb
@@ -152,7 +152,7 @@ EOS
         end
         supported_vers = supported_sdk_versions(versions)
         unless supported_vers
-          App.fail "RubyMotion doesn't support any of these SDK versions: #{versions.join(', ')}"
+          App.fail "The requested SDK (#{deployment_target}) is not available or supported by RubyMotion at this time. Supported and available SDKs are: #{versions.join(', ')}."
         end
         supported_vers
       end