Running 'spelling.R' [0s]
  Running 'testthat.R' [25s]
Running the tests in 'tests/testthat.R' failed.
Complete output:
  > library(testthat)
  > library(rstanemax)
  Loading required package: Rcpp
  > 
  > options(lifecycle_verbosity = "error")
  > test_check("rstanemax")
  -- ERROR (test-posterior_predict.R:79:3): posterior prediction of quantile -----
  Error: The `value` argument of ``names<-`()` can't be NULL as of tibble 3.0.0.
  `names` must not be `NULL`.
  Backtrace:
       x
    1. +-rstanemax::posterior_predict_quantile(test.fit.2cov) test-posterior_predict.R:79:2
    2. | \-`%>%`(...)
    3. +-dplyr::select(., -dataid)
    4. +-dplyr::ungroup(.)
    5. +-dplyr::arrange(., dataid)
    6. +-dplyr::summarize(...)
    7. +-dplyr::group_by(...)
    8. \-dplyr:::group_by.data.frame(...)
    9.   \-dplyr::grouped_df(groups$data, groups$group_names, .drop)
   10.     \-dplyr:::compute_groups(data, vars, drop = drop)
   11.       \-dplyr:::vec_split_id_order(group_vars)
   12.         +-vctrs::vec_slice(split_id, vec_order(split_id$key))
   13.         \-vctrs::vec_order(split_id$key)
   14.           \-vctrs:::order_proxy(...)
   15.             +-vctrs:::map(...)
   16.             | \-base::lapply(.x, .f, ...)
   17.             \-base::unname(proxy)
   18.               +-base::`names<-`(`*tmp*`, value = NULL)
   19.               \-tibble:::`names<-.tbl_df`(`*tmp*`, value = NULL)
   20.                 \-lifecycle::deprecate_soft(...)
   21.                   \-lifecycle::deprecate_warn(...)
   22.                     \-lifecycle::deprecate_stop(when, what, with = with, details = details)
  
  -- ERROR (test-posterior_predict.R:91:3): make sure at least plot() doesn't caus
  Error: The `value` argument of ``names<-`()` can't be NULL as of tibble 3.0.0.
  `names` must not be `NULL`.
  Backtrace:
       x
    1. +-base::plot(test.fit) test-posterior_predict.R:91:2
    2. +-rstanemax:::plot.stanemax(test.fit)
    3. | \-rstanemax::posterior_predict_quantile(...)
    4. |   \-`%>%`(...)
    5. +-dplyr::select(., -dataid)
    6. +-dplyr::ungroup(.)
    7. +-dplyr::arrange(., dataid)
    8. +-dplyr::summarize(...)
    9. +-dplyr::group_by(...)
   10. \-dplyr:::group_by.data.frame(...)
   11.   \-dplyr::grouped_df(groups$data, groups$group_names, .drop)
   12.     \-dplyr:::compute_groups(data, vars, drop = drop)
   13.       \-dplyr:::vec_split_id_order(group_vars)
   14.         +-vctrs::vec_slice(split_id, vec_order(split_id$key))
   15.         \-vctrs::vec_order(split_id$key)
   16.           \-vctrs:::order_proxy(...)
   17.             +-vctrs:::map(...)
   18.             | \-base::lapply(.x, .f, ...)
   19.             \-base::unname(proxy)
   20.               +-base::`names<-`(`*tmp*`, value = NULL)
   21.               \-tibble:::`names<-.tbl_df`(`*tmp*`, value = NULL)
   22.                 \-lifecycle::deprecate_soft(...)
   23.                   \-lifecycle::deprecate_warn(...)
   24.                     \-lifecycle::deprecate_stop(when, what, with = with, details = details)
  
  -- Warning (test-stan_emax.R:16:1): (code run outside of `test_that()`) --------
  Bulk Effective Samples Size (ESS) is too low, indicating posterior means and medians may be unreliable.
  Running the chains for more iterations may help. See
  http://mc-stan.org/misc/warnings.html#bulk-ess
  
  == testthat results  ===========================================================
  ERROR (test-posterior_predict.R:79:3): posterior prediction of quantile
  ERROR (test-posterior_predict.R:91:3): make sure at least plot() doesn't cause error
  Warning (test-stan_emax.R:16:1): (code run outside of `test_that()`)
  
  [ FAIL 2 | WARN 1 | SKIP 0 | PASS 56 ]
  Error: Test failures
  Execution halted