'The animation object does not specify a save_animation method'

[devktpx]

Hi, I have trouble saving gganimate animations. It would be great if anyone could help.

This is the code I'm trying to compile:

library(gapminder)
library(gganimate)

## standard ggplot2
ggplot(gapminder, aes(gdpPercap, lifeExp, size = pop, colour = country)) +
  geom_point(alpha = 0.7, show.legend = FALSE) +
  scale_colour_manual(values = country_colors) +
  scale_size(range = c(2, 12)) +
  scale_x_log10() +
  # Here comes the gganimate specific bits
  labs(title = 'Year: {frame_time}', x = 'GDP per capita', y = 'life expectancy') +
  transition_time(year) +
  ease_aes('linear')

anim_save("output.gif")

It runs fine without the last line. However, when I add the last line (anim_save), then I get this error:

Error: The animation object does not specify a save_animation method

Here is my Session Info:

R version 3.5.1 (2018-07-02)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 7 x64 (build 7601) Service Pack 1

Matrix products: default

locale:
[1] LC_COLLATE=German_Germany.1252  LC_CTYPE=German_Germany.1252   
[3] LC_MONETARY=German_Germany.1252 LC_NUMERIC=C                   
[5] LC_TIME=German_Germany.1252    

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
[1] gganimate_1.0.3 ggplot2_3.1.0   gapminder_0.3.0

loaded via a namespace (and not attached):
 [1] Rcpp_0.12.19      bindr_0.1.1       magrittr_1.5      hms_0.4.2        
 [5] progress_1.2.0    tidyselect_0.2.5  munsell_0.5.0     colorspace_1.4-1 
 [9] R6_2.3.0          rlang_0.3.0.1     plyr_1.8.4        dplyr_0.7.7      
[13] tools_3.5.1       grid_3.5.1        gtable_0.2.0      withr_2.1.2      
[17] lazyeval_0.2.1    assertthat_0.2.1  tibble_1.4.2      crayon_1.3.4     
[21] bindrcpp_0.2.2    farver_1.0        tweenr_1.0.1      purrr_0.2.5      
[25] glue_1.3.0        stringi_1.2.4     compiler_3.5.1    pillar_1.3.0     
[29] scales_1.0.0      prettyunits_1.0.2 pkgconfig_2.0.2  

Does anyone know, why the error occurs and how I can fix this?

[ismirsehregal]

Please try the following:

library(gapminder)
library(gganimate)
library(gifski)

## standard ggplot2
myPlot <- ggplot(gapminder, aes(gdpPercap, lifeExp, size = pop, colour = country)) +
  geom_point(alpha = 0.7, show.legend = FALSE) +
  scale_colour_manual(values = country_colors) +
  scale_size(range = c(2, 12)) +
  scale_x_log10() +
  # Here comes the gganimate specific bits
  labs(title = 'Year: {frame_time}', x = 'GDP per capita', y = 'life expectancy') +
  transition_time(year) +
  ease_aes('linear')

animate(myPlot, duration = 5, fps = 20, width = 200, height = 200, renderer = gifski_renderer())
anim_save("output.gif")

[justinmeyer]

ismirsehregal, that worked for me, thanks!

[swinersha]

Worked for me too. Why has it taken nearly 2 hours to find a solution to this problem? Seems like this is a really cool package but still serious implementation problems.

[BillSeliger]

This worked perfectly. Thanks!

[estebangatillo]

I'm really struggling with animate...I copied the plot above exactly (and have attempted multiple other ggplots) and cannot bypass this error:

Error in (function (classes, fdef, mtable)  : 
  unable to find an inherited method for function ‘animate’ for signature ‘"gganim"’

I'm using the most updated version of gganimate (1.0.5 not 1.0.3).

Here is a simplified example:

[## standard ggplot2
myPlot <- ggplot(gapminder, aes(gdpPercap, lifeExp, size = pop, colour = country)) +
  geom_point(alpha = 0.7, show.legend = FALSE) +
  # Here comes the gganimate specific bits
  transition_time(year) +
  ease_aes('linear')

animate(myPlot, duration = 5, fps = 20)

myPlot works fine - ‘myPlot‘ renders a fine animation. Adding ‘animate‘ leads to the error.

[nick-youngblut]

The reply to the initial post states to include library(gifski). Such info doesn't appear to be in the gganimate::anim_save() docs nor the Getting started docs. It would be helpful to include such information, given all of the confusion on this topic, which is on display above.

[r-analisededados]

Hi, When I save with the anim_save(), the gif does not reproduce, it is static like a common image.