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

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: base_map
> ### Title: Create background map
> ### Aliases: base_map
> 
> ### ** Examples
> 
> 
> # Simple, low-zoom  map for testing
> bound_box <- c(-77.393, 38.277, -75.553, 39.741)
> (x <- base_map(bound_box, zoom = 7))
ℹ Map tiles by Stamen Design, under CC BY 3.0. Data by OpenStreetMap, under ODbL.
Error in curl::curl_fetch_memory(url, handle = handle) : 
  Could not resolve host: tile.stamen.com
Calls: base_map ... request_fetch -> request_fetch.write_memory -> <Anonymous>
Execution halted
Running examples in ‘SWMPrExtension-Ex.R’ failed
The error most likely occurred in:

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: base_map
> ### Title: Create background map
> ### Aliases: base_map
> 
> ### ** Examples
> 
> 
> # Simple, low-zoom  map for testing
> bound_box <- c(-77.393, 38.277, -75.553, 39.741)
> (x <- base_map(bound_box, zoom = 7))
ℹ Map tiles by Stamen Design, under CC BY 3.0. Data by OpenStreetMap, under ODbL.
Error in curl::curl_fetch_memory(url, handle = handle) : 
  Could not resolve host: tile.stamen.com
Calls: base_map ... request_fetch -> request_fetch.write_memory -> <Anonymous>
Execution halted
Running examples in ‘SWMPrExtension-Ex.R’ failed
The error most likely occurred in:

> ### Name: base_map
> ### Title: Create background map
> ### Aliases: base_map
> 
> ### ** Examples
> 
> 
> # Simple, low-zoom  map for testing
> bound_box <- c(-77.393, 38.277, -75.553, 39.741)
> (x <- base_map(bound_box, zoom = 7))
ℹ Map tiles by Stamen Design, under CC BY 3.0. Data by OpenStreetMap, under ODbL.
Error in curl::curl_fetch_memory(url, handle = handle) : 
  Could not resolve host: tile.stamen.com
Calls: base_map ... request_fetch -> request_fetch.write_memory -> <Anonymous>
Execution halted
Running examples in ‘SWMPrExtension-Ex.R’ failed
The error most likely occurred in:

> ### Name: base_map
> ### Title: Create background map
> ### Aliases: base_map
> 
> ### ** Examples
> 
> 
> # Simple, low-zoom  map for testing
> bound_box <- c(-77.393, 38.277, -75.553, 39.741)
> (x <- base_map(bound_box, zoom = 7))
ℹ Map tiles by Stamen Design, under CC BY 3.0. Data by OpenStreetMap, under ODbL.
Error in curl::curl_fetch_memory(url, handle = handle) : 
  Could not resolve host: tile.stamen.com
Calls: base_map ... request_fetch -> request_fetch.write_memory -> <Anonymous>
Execution halted
Running examples in 'SWMPrExtension-Ex.R' failed
The error most likely occurred in:

> ### Name: base_map
> ### Title: Create background map
> ### Aliases: base_map
> 
> ### ** Examples
> 
> 
> # Simple, low-zoom  map for testing
> bound_box <- c(-77.393, 38.277, -75.553, 39.741)
> (x <- base_map(bound_box, zoom = 7))
ℹ Map tiles by Stamen Design, under CC BY 3.0. Data by OpenStreetMap, under ODbL.
Error in curl::curl_fetch_memory(url, handle = handle) : 
  Could not resolve host: tile.stamen.com
Calls: base_map ... request_fetch -> request_fetch.write_memory -> <Anonymous>
Execution halted
Running examples in ‘SWMPrExtension-Ex.R’ failed
The error most likely occurred in:

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: base_map
> ### Title: Create background map
> ### Aliases: base_map
> 
> ### ** Examples
> 
> 
> # Simple, low-zoom  map for testing
> bound_box <- c(-77.393, 38.277, -75.553, 39.741)
> (x <- base_map(bound_box, zoom = 7))
ℹ Map tiles by Stamen Design, under CC BY 3.0. Data by OpenStreetMap, under ODbL.
Error in curl::curl_fetch_memory(url, handle = handle) : 
  Could not resolve host: tile.stamen.com
Calls: base_map ... request_fetch -> request_fetch.write_memory -> <Anonymous>
Execution halted
Running examples in ‘SWMPrExtension-Ex.R’ failed
The error most likely occurred in:

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: base_map
> ### Title: Create background map
> ### Aliases: base_map
> 
> ### ** Examples
> 
> 
> # Simple, low-zoom  map for testing
> bound_box <- c(-77.393, 38.277, -75.553, 39.741)
> (x <- base_map(bound_box, zoom = 7))
ℹ Map tiles by Stamen Design, under CC BY 3.0. Data by OpenStreetMap, under ODbL.
Error in curl::curl_fetch_memory(url, handle = handle) : 
  Could not resolve host: tile.stamen.com
Calls: base_map ... request_fetch -> request_fetch.write_memory -> <Anonymous>
Execution halted
Running examples in 'SWMPrExtension-Ex.R' failed
The error most likely occurred in:

> ### Name: base_map
> ### Title: Create background map
> ### Aliases: base_map
> 
> ### ** Examples
> 
> 
> # Simple, low-zoom  map for testing
> bound_box <- c(-77.393, 38.277, -75.553, 39.741)
> (x <- base_map(bound_box, zoom = 7))
ℹ Map tiles by Stamen Design, under CC BY 3.0. Data by OpenStreetMap, under ODbL.
Error in curl::curl_fetch_memory(url, handle = handle) : 
  Could not resolve host: tile.stamen.com
Calls: base_map ... request_fetch -> request_fetch.write_memory -> <Anonymous>
Execution halted
Running examples in 'SWMPrExtension-Ex.R' failed
The error most likely occurred in:

> ### Name: base_map
> ### Title: Create background map
> ### Aliases: base_map
> 
> ### ** Examples
> 
> 
> # Simple, low-zoom  map for testing
> bound_box <- c(-77.393, 38.277, -75.553, 39.741)
> (x <- base_map(bound_box, zoom = 7))
ℹ Map tiles by Stamen Design, under CC BY 3.0. Data by OpenStreetMap, under ODbL.
Error in curl::curl_fetch_memory(url, handle = handle) : 
  Could not resolve host: tile.stamen.com
Calls: base_map ... request_fetch -> request_fetch.write_memory -> <Anonymous>
Execution halted