Error(s) in re-building vignettes:
  ...
--- re-building 'asteRisk.Rmd' using rmarkdown
To use all functionalities available in this package, including the
high-precision numerical orbit propagator, you must install the
asteRiskData package. To install it, run
`install.packages('asteRiskData',
repos='https://rafael-ayala.github.io/drat/')`.
Loading required package: ggplot2

Attaching package: 'plotly'

The following object is masked from 'package:ggplot2':

    last_plot

The following object is masked from 'package:stats':

    filter

The following object is masked from 'package:graphics':

    layout


Attaching package: 'dplyr'

The following objects are masked from 'package:stats':

    filter, lag

The following objects are masked from 'package:base':

    intersect, setdiff, setequal, union

A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
A line object has been specified, but lines is not in the mode
Adding lines to the mode...
Google's Terms of Service: https://cloud.google.com/maps-platform/terms/.
Please cite ggmap if you use it! See citation("ggmap") for details.

Attaching package: 'ggmap'

The following object is masked from 'package:plotly':

    wind

Source : http://tile.stamen.com/terrain/2/0/0.png
Source : http://tile.stamen.com/terrain/2/1/0.png
Source : http://tile.stamen.com/terrain/2/2/0.png
Source : http://tile.stamen.com/terrain/2/3/0.png
Source : http://tile.stamen.com/terrain/2/4/0.png
Not Found (HTTP 404). Failed to aquire tile /terrain/2/4/0.png.
Source : http://tile.stamen.com/terrain/2/0/1.png
Source : http://tile.stamen.com/terrain/2/1/1.png
Source : http://tile.stamen.com/terrain/2/2/1.png
Source : http://tile.stamen.com/terrain/2/3/1.png
Source : http://tile.stamen.com/terrain/2/4/1.png
Not Found (HTTP 404). Failed to aquire tile /terrain/2/4/1.png.
Source : http://tile.stamen.com/terrain/2/0/2.png
Source : http://tile.stamen.com/terrain/2/1/2.png
Source : http://tile.stamen.com/terrain/2/2/2.png
Source : http://tile.stamen.com/terrain/2/3/2.png
Source : http://tile.stamen.com/terrain/2/4/2.png
Not Found (HTTP 404). Failed to aquire tile /terrain/2/4/2.png.
Source : http://tile.stamen.com/terrain/2/0/3.png
Source : http://tile.stamen.com/terrain/2/1/3.png
Source : http://tile.stamen.com/terrain/2/2/3.png
Source : http://tile.stamen.com/terrain/2/3/3.png
Source : http://tile.stamen.com/terrain/2/4/3.png
Not Found (HTTP 404). Failed to aquire tile /terrain/2/4/3.png.
Quitting from lines 262-302 (asteRisk.Rmd) 
Error: processing vignette 'asteRisk.Rmd' failed with diagnostics:
no applicable method for 'as.raster' applied to an object of class "NULL"
--- failed re-building 'asteRisk.Rmd'

SUMMARY: processing the following file failed:
  'asteRisk.Rmd'

Error: Vignette re-building failed.
Execution halted