Error(s) in re-building vignettes:
  ...
--- re-building ‘models-from-other.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) and/or pandoc-citeproc not available. Falling back to R Markdown v1.
trying URL 'http://ryantimpe.com/files/mf_unicorn.PNG'
Content type 'image/png' length 277758 bytes (271 KB)
==================================================
downloaded 271 KB

Warning: Expected 2 pieces. Missing pieces filled with `NA` in 6 rows [1, 2, 3, 4, 5, 6].
Warning: Problem with `mutate()` input `xx`.
✖ NAs introduced by coercion
ℹ Input `xx` is `.Primitive("as.double")(xx)`.
Warning in mask$eval_all_mutate(dots[[i]]) : NAs introduced by coercion
Warning in min(x) : no non-missing arguments to min; returning Inf
Warning in max(x) : no non-missing arguments to max; returning -Inf
Warning in min(y) : no non-missing arguments to min; returning Inf
Warning in max(y) : no non-missing arguments to max; returning -Inf
Warning in min(image$xmin) :
  no non-missing arguments to min; returning Inf
Warning in max(image$xmax) :
  no non-missing arguments to max; returning -Inf
Warning in min(image$ymin) :
  no non-missing arguments to min; returning Inf
Warning in max(image$ymax) :
  no non-missing arguments to max; returning -Inf
Warning: Expected 2 pieces. Missing pieces filled with `NA` in 7 rows [1, 2, 3, 4, 5, 6, 7].
Warning: Problem with `mutate()` input `xx`.
✖ NAs introduced by coercion
ℹ Input `xx` is `.Primitive("as.double")(xx)`.
Warning in mask$eval_all_mutate(dots[[i]]) : NAs introduced by coercion
Warning in min(x) : no non-missing arguments to min; returning Inf
Warning in max(x) : no non-missing arguments to max; returning -Inf
Warning in min(y) : no non-missing arguments to min; returning Inf
Warning in max(y) : no non-missing arguments to max; returning -Inf
Quitting from lines 34-41 (models-from-other.Rmd) 
Error: processing vignette 'models-from-other.Rmd' failed with diagnostics:
'x' and 'units' must have length > 0
--- failed re-building ‘models-from-other.Rmd’

--- re-building ‘models-from-program.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) and/or pandoc-citeproc not available. Falling back to R Markdown v1.
Warning: Expected 2 pieces. Missing pieces filled with `NA` in 6 rows [1, 2, 3, 4, 5, 6].
Warning: Problem with `mutate()` input `xx`.
✖ NAs introduced by coercion
ℹ Input `xx` is `.Primitive("as.double")(xx)`.
Warning in mask$eval_all_mutate(dots[[i]]) : NAs introduced by coercion
Warning in min(x) : no non-missing arguments to min; returning Inf
Warning in max(x) : no non-missing arguments to max; returning -Inf
Warning in min(y) : no non-missing arguments to min; returning Inf
Warning in max(y) : no non-missing arguments to max; returning -Inf
Warning: Expected 2 pieces. Missing pieces filled with `NA` in 6 rows [1, 2, 3, 4, 5, 6].
Warning: Problem with `mutate()` input `xx`.
✖ NAs introduced by coercion
ℹ Input `xx` is `.Primitive("as.double")(xx)`.
Warning in mask$eval_all_mutate(dots[[i]]) : NAs introduced by coercion
Warning in min(x) : no non-missing arguments to min; returning Inf
Warning in max(x) : no non-missing arguments to max; returning -Inf
Warning in min(y) : no non-missing arguments to min; returning Inf
Warning in max(y) : no non-missing arguments to max; returning -Inf
Warning: Expected 2 pieces. Missing pieces filled with `NA` in 6 rows [1, 2, 3, 4, 5, 6].
Warning: Problem with `mutate()` input `xx`.
✖ NAs introduced by coercion
ℹ Input `xx` is `.Primitive("as.double")(xx)`.
Warning in mask$eval_all_mutate(dots[[i]]) : NAs introduced by coercion
Warning in min(x) : no non-missing arguments to min; returning Inf
Warning in max(x) : no non-missing arguments to max; returning -Inf
Warning in min(y) : no non-missing arguments to min; returning Inf
Warning in max(y) : no non-missing arguments to max; returning -Inf
Warning: Expected 2 pieces. Missing pieces filled with `NA` in 6 rows [1, 2, 3, 4, 5, 6].
Warning: Problem with `mutate()` input `xx`.
✖ NAs introduced by coercion
ℹ Input `xx` is `.Primitive("as.double")(xx)`.
Warning in mask$eval_all_mutate(dots[[i]]) : NAs introduced by coercion
Warning in min(x) : no non-missing arguments to min; returning Inf
Warning in max(x) : no non-missing arguments to max; returning -Inf
Warning in min(y) : no non-missing arguments to min; returning Inf
Warning in max(y) : no non-missing arguments to max; returning -Inf
--- finished re-building ‘models-from-program.Rmd’

--- re-building ‘models-from-tables.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) and/or pandoc-citeproc not available. Falling back to R Markdown v1.
Warning: Expected 2 pieces. Missing pieces filled with `NA` in 6 rows [1, 2, 3, 4, 5, 6].
Warning: Problem with `mutate()` input `xx`.
✖ NAs introduced by coercion
ℹ Input `xx` is `.Primitive("as.double")(xx)`.
Warning in mask$eval_all_mutate(dots[[i]]) : NAs introduced by coercion
Warning in min(x) : no non-missing arguments to min; returning Inf
Warning in max(x) : no non-missing arguments to max; returning -Inf
Warning in min(y) : no non-missing arguments to min; returning Inf
Warning in max(y) : no non-missing arguments to max; returning -Inf
Warning: Expected 2 pieces. Missing pieces filled with `NA` in 6 rows [1, 2, 3, 4, 5, 6].
Warning: Problem with `mutate()` input `xx`.
✖ NAs introduced by coercion
ℹ Input `xx` is `.Primitive("as.double")(xx)`.
Warning in mask$eval_all_mutate(dots[[i]]) : NAs introduced by coercion
Warning in min(x) : no non-missing arguments to min; returning Inf
Warning in max(x) : no non-missing arguments to max; returning -Inf
Warning in min(y) : no non-missing arguments to min; returning Inf
Warning in max(y) : no non-missing arguments to max; returning -Inf
Warning: Expected 2 pieces. Missing pieces filled with `NA` in 6 rows [1, 2, 3, 4, 5, 6].
Warning: Problem with `mutate()` input `xx`.
✖ NAs introduced by coercion
ℹ Input `xx` is `.Primitive("as.double")(xx)`.
Warning in mask$eval_all_mutate(dots[[i]]) : NAs introduced by coercion
Warning in min(x) : no non-missing arguments to min; returning Inf
Warning in max(x) : no non-missing arguments to max; returning -Inf
Warning in min(y) : no non-missing arguments to min; returning Inf
Warning in max(y) : no non-missing arguments to max; returning -Inf
--- finished re-building ‘models-from-tables.Rmd’

--- re-building ‘models-piece-type.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) and/or pandoc-citeproc not available. Falling back to R Markdown v1.
Warning: Expected 2 pieces. Missing pieces filled with `NA` in 6 rows [1, 2, 3, 4, 5, 6].
Warning: Problem with `mutate()` input `xx`.
✖ NAs introduced by coercion
ℹ Input `xx` is `.Primitive("as.double")(xx)`.
Warning in mask$eval_all_mutate(dots[[i]]) : NAs introduced by coercion
Warning: Expected 2 pieces. Missing pieces filled with `NA` in 6 rows [1, 2, 3, 4, 5, 6].
Warning: Problem with `mutate()` input `xx`.
✖ NAs introduced by coercion
ℹ Input `xx` is `.Primitive("as.double")(xx)`.
Warning in mask$eval_all_mutate(dots[[i]]) : NAs introduced by coercion
Warning in min(x) : no non-missing arguments to min; returning Inf
Warning in max(x) : no non-missing arguments to max; returning -Inf
Warning in min(y) : no non-missing arguments to min; returning Inf
Warning in max(y) : no non-missing arguments to max; returning -Inf
Warning: Expected 2 pieces. Missing pieces filled with `NA` in 6 rows [1, 2, 3, 4, 5, 6].
Warning: Problem with `mutate()` input `xx`.
✖ NAs introduced by coercion
ℹ Input `xx` is `.Primitive("as.double")(xx)`.
Warning in mask$eval_all_mutate(dots[[i]]) : NAs introduced by coercion
Warning in min(x) : no non-missing arguments to min; returning Inf
Warning in max(x) : no non-missing arguments to max; returning -Inf
Warning in min(y) : no non-missing arguments to min; returning Inf
Warning in max(y) : no non-missing arguments to max; returning -Inf
Warning: Expected 2 pieces. Missing pieces filled with `NA` in 6 rows [1, 2, 3, 4, 5, 6].
Warning: Problem with `mutate()` input `xx`.
✖ NAs introduced by coercion
ℹ Input `xx` is `.Primitive("as.double")(xx)`.
Warning in mask$eval_all_mutate(dots[[i]]) : NAs introduced by coercion
Warning in min(x) : no non-missing arguments to min; returning Inf
Warning in max(x) : no non-missing arguments to max; returning -Inf
Warning in min(y) : no non-missing arguments to min; returning Inf
Warning in max(y) : no non-missing arguments to max; returning -Inf
Warning: Expected 2 pieces. Missing pieces filled with `NA` in 6 rows [1, 2, 3, 4, 5, 6].
Warning: Problem with `mutate()` input `xx`.
✖ NAs introduced by coercion
ℹ Input `xx` is `.Primitive("as.double")(xx)`.
Warning in mask$eval_all_mutate(dots[[i]]) : NAs introduced by coercion
Warning: Expected 2 pieces. Missing pieces filled with `NA` in 6 rows [1, 2, 3, 4, 5, 6].
Warning: Problem with `mutate()` input `xx`.
✖ NAs introduced by coercion
ℹ Input `xx` is `.Primitive("as.double")(xx)`.
Warning in mask$eval_all_mutate(dots[[i]]) : NAs introduced by coercion
Warning in min(x) : no non-missing arguments to min; returning Inf
Warning in max(x) : no non-missing arguments to max; returning -Inf
Warning in min(y) : no non-missing arguments to min; returning Inf
Warning in max(y) : no non-missing arguments to max; returning -Inf
Warning: Expected 2 pieces. Missing pieces filled with `NA` in 6 rows [1, 2, 3, 4, 5, 6].
Warning: Problem with `mutate()` input `xx`.
✖ NAs introduced by coercion
ℹ Input `xx` is `.Primitive("as.double")(xx)`.
Warning in mask$eval_all_mutate(dots[[i]]) : NAs introduced by coercion
Warning in min(x) : no non-missing arguments to min; returning Inf
Warning in max(x) : no non-missing arguments to max; returning -Inf
Warning in min(y) : no non-missing arguments to min; returning Inf
Warning in max(y) : no non-missing arguments to max; returning -Inf
Warning: Expected 2 pieces. Missing pieces filled with `NA` in 6 rows [1, 2, 3, 4, 5, 6].
Warning: Problem with `mutate()` input `xx`.
✖ NAs introduced by coercion
ℹ Input `xx` is `.Primitive("as.double")(xx)`.
Warning in mask$eval_all_mutate(dots[[i]]) : NAs introduced by coercion
Warning in min(x) : no non-missing arguments to min; returning Inf
Warning in max(x) : no non-missing arguments to max; returning -Inf
Warning in min(y) : no non-missing arguments to min; returning Inf
Warning in max(y) : no non-missing arguments to max; returning -Inf
Warning: Expected 2 pieces. Missing pieces filled with `NA` in 6 rows [1, 2, 3, 4, 5, 6].
Warning: Problem with `mutate()` input `xx`.
✖ NAs introduced by coercion
ℹ Input `xx` is `.Primitive("as.double")(xx)`.
Warning in mask$eval_all_mutate(dots[[i]]) : NAs introduced by coercion
Warning in min(x) : no non-missing arguments to min; returning Inf
Warning in max(x) : no non-missing arguments to max; returning -Inf
Warning in min(y) : no non-missing arguments to min; returning Inf
Warning in max(y) : no non-missing arguments to max; returning -Inf
--- finished re-building ‘models-piece-type.Rmd’

--- re-building ‘mosaics.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) and/or pandoc-citeproc not available. Falling back to R Markdown v1.
trying URL 'http://ryantimpe.com/files/mf_unicorn.PNG'
Content type 'image/png' length 277758 bytes (271 KB)
==================================================
downloaded 271 KB

Quitting from lines 29-36 (mosaics.Rmd) 
Error: processing vignette 'mosaics.Rmd' failed with diagnostics:
'x' and 'units' must have length > 0
--- failed re-building ‘mosaics.Rmd’

SUMMARY: processing the following files failed:
  ‘models-from-other.Rmd’ ‘mosaics.Rmd’

Error: Vignette re-building failed.
Execution halted