Packaging fatal error

Hi all, getting this fatal error whenever I try and package a project with the DMX plugin installed and BP only.

Module.DMXRuntime.gen.1_of_2.cpp.obj : error LNK2001: unresolved external symbol “public: virtual void __cdecl UDMXEntityController::PostInitProperties(void)” (?PostInitProperties@UDMXEntityController@@UEAAXXZ)

Anyone know how I could fix it?
Thank-you!