Help needed: Geographical CRS given to non-conformant data

Hi I’m getting an error and I’m unsure how to fix:

> proj4string(setop.dat) <- CRS("+proj=longlat +datum=WGS84

+ +no_defs +ellps=WGS84 +towgs84=0,0,0")

**Error in `proj4string<-`(`*tmp*`, value = new("CRS", projargs = "+proj=longlat +datum=WGS84 +no_defs")) :**

**Geographical CRS given to non-conformant data: -121.6213191**

I am setting up to conduct SDMs. I have been following along with this workshop:

This is my code so far:

setop.dat = read.csv("C:…………………………setophaga.virens.csv")


colnames(setop.dat) <- c("ID", "latitude", "longitude", "Provider", "observed_on")

coordinates(setop.dat) <- ~ latitude + longitude

setop.dat <- SpatialPointsDataFrame(coords = coordinates(setop.dat),

data = data.frame(setop.dat))

proj4string(setop.dat) <- CRS("+proj=longlat +datum=WGS84

+no_defs +ellps=WGS84 +towgs84=0,0,0")

After I solve that error I'd be projecting onto a simple map:

map(database = "usa")


Any help is greatly appreciated.

reverse the order of these...
coordinates(setop.dat) <- ~ longitude + latitude

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