The !SkinSubFolder! directory should go directly within your
project file folder (as in C:/myproject/!SkinSubFolder!). Put it
back there and see if RH is happy. Also, make sure that the skin
you are trying to use is a folder within !SkinSubFolder! and that
there are files within the skin folder.
The !SSL! folder is the default place that your generated
output folders go. RH doesn't know to look there for the
skins.
Where are you seeing this message (for example, is it when
you are generating your SSL)?
Skins that you select while generating your output are put in
your project folder in a directory called !SkinSubFolder! Was that
one of the folders you moved?
The !SkinSubFolder! directory should go directly within your
project file folder (as in C:/myproject/!SkinSubFolder!). Put it
back there and see if RH is happy. Also, make sure that the skin
you are trying to use is a folder within !SkinSubFolder! and that
there are files within the skin folder.
The !SSL! folder is the default place that your generated
output folders go. RH doesn't know to look there for the
skins.