A while back one of my colleagues received this error deploying the process from visual studio to a SharePoint 2010 site. Which was quite simple to fix if you know what you’re looking for.
Server was unable to process the request —> Activation could not be completed because the InfoPath Form Services support feature is not present.
This is easily resolved by activating the relevant features to the site and site collection at the Site Collection level activate the following features:
Also enable the following at site level: