The following error is received when attempting to sign your application.
Code signing request failed because Application-Development-Mode is present and not set to [false].
The RIM Signing Authority does not allow signing applications built in Development Mode. Applications must be built in Production Mode before they can be signed.
BlackBerry Tablet OS SDK for Adobe AIR:
Change the Application Deployment Mode of your application from Development Mode to Production Mode. Follow the steps below to change this setting within Adobe® Flash Builder®.
Right click on your project in Adobe Flash Builder.
Select Run As -> Run Configurations...
Change Application Deployment Mode from Development Mode to Production Mode.
Please refer to the official Signing your application documentation from the BlackBerry Tablet OS SDK for Adobe AIR development guide.
BlackBerry WebWorks SDK for Tablet OS:
By default, the BlackBerry WebWorks SDK for Tablet OS builds applications in Development Mode. Only when you build and sign your application at the same time using the command line utility can your application be created in Production mode. For this reason, you cannot use the blackberry-signer utiltiy to sign a WebWorks application after it has been created.
In order to create a Production mode version of your WebWorks application, you must build and sign your application at the same time from the command line using the steps outlined in the Sign the .bar file for a BlackBerry WeboWorks application documentation from the BlackBerry WebWorks SDK for Tablet OS development guide.