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

> ### Name: confint.mumm
> ### Title: Confidence Intervals for Model Parameters
> ### Aliases: confint.mumm
> 
> ### ** Examples
> 
> set.seed(100)
> sigma_e <- 1.5
> sigma_a <- 0.8
> sigma_b <- 0.5
> sigma_d <- 0.7
> nu <- c(8.2, 6.2, 2.3, 10.4, 7.5, 1.9)
> 
> nA <- 15
> nP <- 6
> nR <- 5
> 
> a <- rnorm(nA, mean = 0, sd = sigma_a)
> b <- rnorm(nA, mean = 0, sd = sigma_b)
> d <- rnorm(nA*nP, mean = 0, sd = sigma_d)
> e <- rnorm(nA*nP*nR, mean = 0, sd = sigma_e)
> 
> Assessor <- factor(rep(seq(1,nA),each = (nP*nR)))
> Product <- factor(rep(rep(seq(1,nP),each = nR), nA))
> AssessorProduct <- (Assessor:Product)
> 
> y <- nu[Product] + a[Assessor] + b[Assessor]*(nu[Product]-mean(nu)) + d[AssessorProduct] + e
> 
> sim_data <- data.frame(y, Assessor, Product)
> 
> fit <- mumm(y ~ 1 + Product + (1|Assessor) + (1|Assessor:Product) +
+              mp(Assessor,Product) ,data = sim_data)
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: mumm ... tryCatch -> tryCatchList -> tryCatchOne -> <Anonymous>
Execution halted