object cannot be written into a 3ds file I am a rookie user of Blender, my blender project cannot be exported to 3ds file.

How to solve that?

Error message
Object %r can't be written into a 3DS file

This is the link of my project Blender Project 2018
There is a maximum number of faces limit with .3ds files. You might be exceeding this. If possible, consider using the .OBJ format, which doesn't have this limitation. Try removing all but a small part of the model and exporting that to confirm if this is your problem.

If it is not this which is causing the problem, try baking all the modifiers before exporting.