I created test app using Architect. Executed following command from command prompt. But got the error.
Anyone know what actually it do..

D:\sencha\test2>sencha app build production
Sencha Cmd v3.0.0.230
[ERROR] Unable to locate 'app.dir' config property from sencha.cfg
[ERROR] Please ensure this command was executed from a valid application
[ERROR] Non-appliaction directory