s sparkleshare doesn't have its dependency satisfied.
According to the sparkleshare release notes[0] the 1.3.0; release added the gtk3 bindings... so any of those ought to help.
The build dependencies are more complex than I can do in a few minutes though[1]
The 2.0 release the release notes states has breaking changes from 1.X ...
To get this updated someone needs to package webkit2-sharp (and any dependencies that needs to build) ... gtk-sharp3 is already packaged though which should help.
webkit2-sharp is now packaged for the first step:
https://koji.fedoraproject.org/koji/packageinfo?packageID=25135
Update for sparkleshare can proceed
-- Luya Tshimbalanga Graphic & Web Designer E: luya@fedoraproject.org W: http://www.coolest-storm.net