Unfortunately a lot of the older scenery read me instructions are are slightly outdated when it comes to the needed libraries that make RTMM work. This can, and often does, lead to confusion for newbies Ideally they need to be gone through and updated, but the task would be monumental, to say the least. As Dieter points out, always use the official RTMM libraries when using or scenery. (The old EZ libraries were updated to be compatible with both FSX and P3D are part of our libraries.) Sorry about the confusion.
Steve