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

> ### Name: calc_days_at_sea_trip
> ### Title: Calculate days at sea for a fishing trip.
> ### Aliases: calc_days_at_sea_trip
> 
> ### ** Examples
> 
> trip1 <- data.frame(
+    eunr_id = "my_boat", loa = 2000, gt = 70, kw = 400,
+    trip_id = "trip1",
+    # 4 day trip
+    depdate = "20140718", deptime = "0615", retdate = "20140721", rettime = "1615",
+    # Only fish on 2 of those
+    fishdate = c("20140719", "20140719", "20140719", "20140719", "20140720",
+        "20140720", "20140720"), 
+    gear = c("OTB","OTB","OTB","GN","OTB","GN","FPO"), gear_mesh_size = c(80,80,80,50,80,50,0),
+    fishing_area = "27.4.B",
+    economic_zone = "EU",
+    rectangle = c("39F0","40F0","41F0","41F0","41F0","41F0","41F0"),
+    stringsAsFactors = FALSE
+ )
> das <- calc_days_at_sea_trip(trip1)
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: calc_days_at_sea_trip ... tryCatch -> tryCatchList -> tryCatchOne -> <Anonymous>
Execution halted