Sign app for sideloading

Hi,

This has probably been asked a thousand time or more so my apologies but I cannot find the answer.

I have build my first watch app (for Venu 2) and tested it on the simulator.

I would like to try it on my watch, so I built it and copied it onto the watch.

On disconnecting the watch it showed the "Verifying Connect IQ Apps" message.

On reconnecting the watch the PRG file had been deleted.

I am sure I am doing something stupid. Disappointed

I am using Visual Studio and Windows 10.

The app is built for the Venu 2

I got no option to sign the app when doing the build, just the device to build for and the location for the file.

Many thanks,

Paul