I have a WP7 project and i want to add Flurry for Analytics and there is no WP7 sdk on there site when i contacted them in support they said " the Flurry WP8 SDK v3.1.2 which is backward compatible with WP7.x apps." But when tried to add to my app Visual studio said "A reference to higher version or incompatible assembly cannot added to project"
The WP8 SDK isn't backwards-compatible the last I checked - I had to get a specific WP7 SDK .dll file from their support to get it working. I'd contact them again to let them know that it isn't backwards-compatible, and that you need the WP7 SDK.