Hi TechLord, unfortunatly, UAIS2 for 4.9 version is not compatible with 4.8 or older versions. It seems that they changed a lot in different classes. The only way i see, for your project, port it to 4.9. Or use the UAIS for 4.8 version. Then go trought all UAIS files and change the blueprint code to fit the UAIS2 version for ue4.9.