I'm working on a project in UE4.7.5 and I want to use Leap Motion in the project. I downloaded the plugin and copied the LeapMotionController-folder into the plugin-folder of my existing project. I could now enable the plugin in the projectsettings. UE4 wanted to restart to use the plugin so I tried it. But then the message "The following modules are missing or built with a different engine version: UE4Editor-LeapMotionController.dll Would you like to rebuild them now?" appeared. So I pressed Yes. And now the error-message "MyProject could not be compiled. Try rebuilding from source manually" appeared. I don't know what to do now to make Leap Motion work. I can't find the missing module anywhere on my computer. And I don't know how to rebuild from the source manually.
Cloning the UnrealEngine 4.7 source version that already includes the plugin, building that, then opening your project with that should work. I don't think the binary version can be used with the plugin code.