Running examples in ‘animint2-Ex.R’ failed
The error most likely occurred in:

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: coord_map
> ### Title: Map projections.
> ### Aliases: coord_map coord_quickmap
> 
> ### ** Examples
> 
> if (require("maps")) {
+ nz <- map_data("nz")
+ # Prepare a map of NZ
+ nzmap <- ggplot(nz, aes(x = long, y = lat, group = group)) +
+   geom_polygon(fill = "white", colour = "black")
+ 
+ # Plot it in cartesian coordinates
+ nzmap
+ # With correct mercator projection
+ nzmap + coord_map()
+ # With the aspect ratio approximation
+ nzmap + coord_quickmap()
+ 
+ # Other projections
+ nzmap + coord_map("cylindrical")
+ nzmap + coord_map("azequalarea", orientation = c(-36.92,174.6,0))
+ 
+ states <- map_data("state")
+ usamap <- ggplot(states, aes(long, lat, group = group)) +
+   geom_polygon(fill = "white", colour = "black")
+ 
+ # Use cartesian coordinates
+ usamap
+ # With mercator projection
+ usamap + coord_map()
+ usamap + coord_quickmap()
+ # See ?mapproject for coordinate systems and their parameters
+ usamap + coord_map("gilbert")
+ usamap + coord_map("lagrange")
+ 
+ # For most projections, you'll need to set the orientation yourself
+ # as the automatic selection done by mapproject is not available to
+ # ggplot
+ usamap + coord_map("orthographic")
+ usamap + coord_map("stereographic")
+ usamap + coord_map("conic", lat0 = 30)
+ usamap + coord_map("bonne", lat0 = 50)
+ 
+ # World map, using geom_path instead of geom_polygon
+ world <- map_data("world")
+ worldmap <- ggplot(world, aes(x = long, y = lat, group = group)) +
+   geom_path() +
+   scale_y_continuous(breaks = (-2:2) * 30) +
+   scale_x_continuous(breaks = (-4:4) * 45)
+ 
+ # Orthographic projection with default orientation (looking down at North pole)
+ worldmap + coord_map("ortho")
+ # Looking up up at South Pole
+ worldmap + coord_map("ortho", orientation = c(-90, 0, 0))
+ # Centered on New York (currently has issues with closing polygons)
+ worldmap + coord_map("ortho", orientation = c(41, -74, 0))
+ }
Loading required package: maps
Error in loadNamespace(x) : there is no package called ‘mapproj’
Calls: <Anonymous> ... mapply -> <Anonymous> -> <Anonymous> -> f -> mproject
Execution halted