Roma Surrectum 2 was installed incorrectly (Windows 10/ Steam)

[Rohan22]

[ErrorReports]
Error1/3=You don't have Roma Surrectum II installed in the correct folder. (C:\Roma Surrectum 2)
Error2/3=Engine: RomeTW-ALX.exe, Faction campaign: -mod:play_rome
Error3/3=In total: 'RomeTW-ALX.exe -mod:play_rome -show_err -nm -movie_cam'

That's the notepad error message copy. I copied my RTW gold up to date version from steam into a new folder, which I labeled after the mod. It seemed to copy correctly and I installed Surrectum into that new folder, seemingly without incident. I think I did the basic required steps but I am not too computer savy with modding (usually can get them to install right 50% of the time. Maybe I missed something? Any replies are appreciated.

[Saul Tyre]

[ErrorReports]
Error1/3=You don't have Roma Surrectum II installed in the correct folder. (C:\Roma Surrectum 2)
Error2/3=Engine: RomeTW-ALX.exe, Faction campaign: -mod:play_rome
Error3/3=In total: 'RomeTW-ALX.exe -mod:play_rome -show_err -nm -movie_cam'

That's the notepad error message copy. I copied my RTW gold up to date version from steam into a new folder, which I labeled after the mod. It seemed to copy correctly and I installed Surrectum into that new folder, seemingly without incident. I think I did the basic required steps but I am not too computer savy with modding (usually can get them to install right 50% of the time. Maybe I missed something? Any replies are appreciated.

Sorry, this might seem a silly question, you say you have installed Rome Gold, but have you added the Alexander expansion? you realize RS cannot play on steam without it?

[Rohan22]

oh...Well now I feel dumb. I saw that but I assumed it was optional. I'll give that a try. My apologies.

[Rohan22]

[ErrorReports]
Error1/3=You don't have Roma Surrectum II installed in the correct folder. (C:\Roma Surrectum 2)
Error2/3=Engine: RomeTW-ALX.exe, Faction campaign: -mod:play_rome
Error3/3=In total: 'RomeTW-ALX.exe -mod:play_rome -show_.err -nm -movie_cam'

I downloaded Alexander and tried again and got this message, does the new folder have to be named this? I have RTW Gold, Alexander and Roma Surrectum all in a new non program files folder.