Using remote debugging in chrome was testing a sencha touch mvc application in android mobile.
When application loads in the desktop browser there was no warning in the developer tool's console. But when same app was loaded in the the mobile browser it logs many warnings such as provided below
the main reason why i was bothered by this warning is a doubt as objects are created multiple times in mobile device which must not happen. to remove the warning i can remove the ID and provide itemId, but that will hide the warnings but will not control the duplicate object creations .
[WARN][Ext.Component#constructor] Registering a component with a id (`viewport`) which has already been used. Please ensure the existing component has been destroyed (`Ext.Component#destroy()`.
Is my doubt is correct or ignore the warning