Feature readers does not read any feature from AutoCad DWG/DXF Format

This presentation from last year might be of interest to you: https://engage.safe.com/presentations/producing-apple-imdf-datasets-fme/

I’ve tempted to create IMDF from DWG files myself a couple of years ago, and unfortunately it was a never-ending battle between the very different conceptual ideas behind those two data formats. Ultimately, we were not successful in fully automating the creation of an IMDF file that was valid both for the technical validation routine and the internal validation done by someone at Apple (this was the biggest hurdle, actually, as they have extremely strict topology rules and requirements for referential integrity). In our case, the data would need considerable manual work to be accepted for use in Apple Maps and the project was ultimately abandoned.

Please do let us know here if you have better luck!