'0.stride…' invokes 'stride' on a literal, which (in the absence of other information) the compiler treats as an Int. Int's 'stride' method doesn't take CGFloat parameters, hence the error.
You also have two other errors. The first parameter of 'stride' requires a 'to' or 'through' keyword, and you can't (and don't want to) use the variable 'min' in the stride amount. So the correct syntax would be like this:
for min in CGFloat (0).stride(to: 55, by: value) {
print("\(min)")
}
Note that once you've specified the correct type for the literal 0, the compiler can infer CGFloat for all of the other numbers in the statement.