Running examples in 'giphyr-Ex.R' failed
The error most likely occurred in:

> ### Name: gif_search
> ### Title: Search GIFs by key words throught giphy API
> ### Aliases: gif_search
> 
> ### ** Examples
> 
> gif_search("cat")
# A tibble: 10 x 48
   type  id    url   slug  bitly_gif_url bitly_url embed_url username source
   <chr> <chr> <chr> <chr> <chr>         <chr>     <chr>     <chr>    <chr> 
 1 gif   mlvs~ http~ funn~ http://gph.i~ http://g~ https://~ ""       "http~
 2 gif   W3QK~ http~ cats~ http://gph.i~ http://g~ https://~ ""       "http~
 3 gif   fXgK~ http~ chee~ http://gph.i~ http://g~ https://~ "cheezb~ "http~
 4 gif   7vhA~ http~ cat-~ http://gph.i~ http://g~ https://~ ""       "http~
 5 gif   cuPm~ http~ cuPm~ http://gph.i~ http://g~ https://~ ""       "http~
 6 gif   q1Me~ http~ cat-~ http://gph.i~ http://g~ https://~ ""       "http~
 7 gif   Nm8Z~ http~ reac~ http://gph.i~ http://g~ https://~ ""       "http~
 8 gif   Lq0h~ http~ reac~ https://gph.~ https://~ https://~ ""       ""    
 9 gif   MCfh~ http~ easy~ http://gph.i~ http://g~ https://~ ""       "http~
10 gif   33Or~ http~ cat-~ http://gph.i~ http://g~ https://~ ""       "http~
# ... with 39 more variables: title <chr>, rating <chr>, content_url <chr>,
#   source_tld <chr>, source_post_url <chr>, is_sticker <int>,
#   import_datetime <chr>, trending_datetime <chr>,
#   analytics_response_payload <chr>, original <chr>, downsized <chr>,
#   downsized_large <chr>, downsized_medium <chr>, downsized_still <chr>,
#   original <chr>, downsized <chr>, downsized_large <chr>,
#   downsized_medium <chr>, downsized_still <chr>, fixed_height <chr>,
#   fixed_height_downsampled <chr>, fixed_height_small <chr>,
#   fixed_height_small_still <chr>, fixed_height_still <chr>,
#   fixed_width <chr>, fixed_width_downsampled <chr>, fixed_width_small <chr>,
#   fixed_width_small_still <chr>, fixed_width_still <chr>,
#   original_still <chr>, preview_gif <chr>, fixed_height_mp4 <chr>,
#   fixed_width_mp4 <chr>, fixed_height_small_mp4 <chr>,
#   fixed_width_small_mp4 <chr>, original_mp4 <chr>, looping_mp4 <chr>,
#   preview_mp4 <chr>, downsized_small_mp4 <chr>
> gif_search("dog", img_format = "downsized")
# A tibble: 10 x 24
   type  id    url   slug  bitly_gif_url bitly_url embed_url username source
   <chr> <chr> <chr> <chr> <chr>         <chr>     <chr>     <chr>    <chr> 
 1 gif   y4PQ~ http~ dog-~ http://gph.i~ http://g~ https://~ ""       http:~
 2 gif   aCqb~ http~ cute~ https://gph.~ https://~ https://~ ""       https~
 3 gif   5Whc~ http~ 5Whc~ https://gph.~ https://~ https://~ ""       https~
 4 gif   21GC~ http~ reac~ https://gph.~ https://~ https://~ ""       https~
 5 gif   11Xc~ http~ dog-~ http://gph.i~ http://g~ https://~ ""       http:~
 6 gif   10AV~ http~ dog-~ http://gph.i~ http://g~ https://~ ""       http:~
 7 gif   1Lwe~ http~ dog-~ http://gph.i~ http://g~ https://~ ""       http:~
 8 gif   1rNz~ http~ 1rNz~ https://gph.~ https://~ https://~ ""       /r/gi~
 9 gif   mCRJ~ http~ dog-~ http://gph.i~ http://g~ https://~ ""       http:~
10 gif   d3er~ http~ reda~ http://gph.i~ http://g~ https://~ "redand~ https~
# ... with 15 more variables: title <chr>, rating <chr>, content_url <chr>,
#   source_tld <chr>, source_post_url <chr>, is_sticker <int>,
#   import_datetime <chr>, trending_datetime <chr>,
#   analytics_response_payload <chr>, original <chr>, downsized <chr>,
#   downsized_large <chr>, downsized_medium <chr>, downsized_still <chr>,
#   downsized <chr>
> gif_search("panda", limit = 100, img_format = "downsized_small_mp4")
Error in if (search_content$pagination$total_count == 0) { : 
  argument is of length zero
Calls: gif_search
Execution halted