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

> ### Name: embed
> ### Title: Embed a video into an HTML document
> ### Aliases: embed embed_vimeo embed_youtube embed_user2016 embed_user2017
> ###   embed_channel9
> 
> ### ** Examples
> 
> embed_youtube("dQw4w9WgXcQ")
<iframe src="https://www.youtube.com/embed/dQw4w9WgXcQ" width="420" height="315" frameborder="0" allowfullscreen=""></iframe>
> embed_vimeo("45196609")
<iframe class="vimeo-embed" src="https://player.vimeo.com/video/45196609" width="500" height="281" frameborder="0" webkitallowfullscreen="" mozallowfullscreen="" allowfullscreen=""></iframe>
> embed_user2016("Literate-Programming")
<iframe src="https://channel9.msdn.com/Events/useR-international-R-User-conference/useR2016/Literate-Programming/player" width="560" height="315" frameborder="0" allowfullscreen=""></iframe>
> embed_user2017("Room-202-Lightning-Talks") %>% use_start_time("26m35s")
Error in namespaceExport(ns, exports) : 
  undefined exports: %s!=%, %s!==%, %s+%, %s<%, %s<=%, %s==%, %s===%, %s>%, %s>=%, %stri!=%, %stri!==%, %stri+%, %stri<%, %stri<=%, %stri==%, %stri===%, %stri>%, %stri>=%, stri_datetime_add<-, stri_sub<-, stri_subset<-, stri_subset_charclass<-, stri_subset_coll<-, stri_subset_fixed<-, stri_subset_regex<-, stri_c, stri_c_list, stri_cmp, stri_cmp_eq, stri_cmp_equiv, stri_cmp_ge, stri_cmp_gt, stri_cmp_le, stri_cmp_lt, stri_cmp_neq, stri_cmp_nequiv, stri_compare, stri_conv, stri_count, stri_count_boundaries, stri_count_charclass, stri_count_coll, stri_count_fixed, stri_count_regex, stri_count_words, stri_datetime_add, stri_datetime_create, stri_datetime_fields, stri_datetime_format, stri_datetime_fstr, stri_datetime_now, stri_datetime_parse, stri_datetime_symbols, stri_detect, stri_detect_charclass, stri_detect_coll, stri_detect_fixed, stri_detect_regex, stri_dup, stri_duplicated, stri_duplicated_any, stri_enc_detect, stri_enc_detect2, stri_enc_fromutf32, stri_enc_get, stri_enc_inf
Calls: %>% ... tryCatch -> tryCatchList -> tryCatchOne -> <Anonymous>
Execution halted