about pokemon diamond

i'm sure this has probably been asked before but i couldn't find anything describing my situation.
so i downloaded the emulator with the $ symbol in it, the most common one. then i downloaded the pokemon diamond game. when i open up the emulator and the game, it says it cannot be read and that i should take it out and put it back in. suggestions?

Replying to #1

try an arm7 patch there is a link in one of the forums im sorry i cant tell you where

You need to have version 2.6a of the emulator to get it working properly.

A link to 2.6a can be found in the Common Issues https://www.romulation.org/forum/index.php?topic=1462.0