Running examples in 'assertive.data.uk-Ex.R' failed
The error most likely occurred in:

> ### Name: assert_all_are_uk_car_licences
> ### Title: Is the string a valid UK car licence plate number?
> ### Aliases: assert_all_are_uk_car_licences assert_any_are_uk_car_licences
> ###   assert_all_are_uk_car_licenses assert_any_are_uk_car_licenses
> ###   is_uk_car_licence is_uk_car_license
> 
> ### ** Examples
> 
> licences <- c(
+   #1903 to 1931
+   "A 1", "AA 9999",                   #ok
+   "A 01",                             #zero prefix on number
+   "S0", "G0", "RG0", "LM0",           #ok, special plates
+   #1931 to 1963
+   "AAA 1", "AAA 999",                 #ok
+   "III 1", "QQQ 1", "ZZZ 1",          #disallowed letters
+   "AAA 01",                           #zero prefix on number
+   #1931 to 1963 alt
+   "1 AAA", "9999 AAA",                #ok
+   "1 III", "1 QQQ", "1 ZZZ",          #disallowed letters
+   "01 AAA",                           #zero prefix on number
+   #1963 to 1982
+   "AAA 1A", "AAA 999A",               #ok
+   "AAA 1I", "AAA 1O", "AAA 1Q",       #disallowed letters
+   "AAA 1U", "AAA 1Z", 
+   "AAA 01A",                          #zero prefix on number
+   #1982 to 2001
+   "A1 AAA", "A999 AAA",               #ok    
+   "I1 AAA", "O1 AAA",                 #disallowed letters
+   "U1 AAA", "Z1 AAA",
+   "A01 AAA",                          #zero prefix on number
+   #2001 to 2051
+   "AA00 AAA", "AA99 AAA",             #ok
+   "II00 AAA", "QQ00 AAA", "ZZ00 AAA", #disallowed letters
+   "AA00 III", "AA00 QQQ"
+ )
> is_uk_car_licence(licences)
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: is_uk_car_licence ... tryCatch -> tryCatchList -> tryCatchOne -> <Anonymous>
Execution halted