[Other] Issue with a tutorial for Pokeemerald

[LordOfOtatops]

I am currently following a tutorial on how to change the white out money calculation. The tutorial I am following is here: https://github.com/pret/pokeemerald/wiki/Better-White-Out-Money-Calculation

I have completed every step, but when I try to compile/build the ROM it gives me the following error. The code it does not recognize is found in the second to last step of the tutorial. Does anyone know what the problem may be, and how can I fix it?

 

[セケツ]

Well, Judging from the screenshot, it looks like the name of definition named "MON_DATA_SPECIES2" has been changed. Just because Pret's PokeEmerald is a project updated frequently & continuously.
If you use the latest version of PokeEmerald. The only simple thing need you doing is just change the "MON_DATA_SPECIES2" in your previous modified code strings to the "MON_DATA_SPECIES_OR_EGG". Then save the file & build your ROM again.