How to fix poke transporter gb error in emulator

[LOLcoder]

So I'm trying to get my Pokemon all over the gens of pokemon only using emulators but I've hit a roadblock on the first day when I use poke transporter gb so I can transfer my Pokemon from gen2 to gen3 on mgba for some reason it doesn't work but actually everything is going fine except for when it's transferring time they tell u to press a when ur ready BLA BLA BLA well I've done everything they said but they that the game boy color was disconnected for some reason and in the tab of the pokemon gold they say that ur friend is not connected what can I do I really want to do this challenge so I would really appreciated any help that would actually help me

[Soul DS]

If I'm not mistaken, Poké Transporter GB is not supported by emulators, since it uses the link cable in an unusual way for emulators to be able to communicate between a GB/GBC game and a GBA game. I suppose your only lucks would be either doing it on real hardware (though it would require actual hardware and ruin your challenge), or use external softwares like PkHeX to do the transfer.