Package check result: ERROR

Check: examples, Result: ERROR
  Running examples in ‘mvgam-Ex.R’ failed
  The error most likely occurred in:
  
  > base::assign(".ptime", proc.time(), pos = "CheckExEnv")
  > ### Name: forecast.mvgam
  > ### Title: Extract or compute hindcasts and forecasts for a fitted 'mvgam'
  > ###   object
  > ### Aliases: forecast.mvgam
  > 
  > ### ** Examples
  > 
  > ## No test: 
  >   # Simulate data with 3 series and AR trend model
  >   simdat <- sim_mvgam(n_series = 3, trend_model = AR())
  > 
  >   # Fit mvgam model
  >   mod <- mvgam(
  +     y ~ s(season, bs = 'cc', k = 6),
  +     trend_model = AR(),
  +     noncentred = TRUE,
  +     data = simdat$data_train,
  +     chains = 2,
  +     silent = 2
  +   )
  Warning in mvgam(y ~ s(season, bs = "cc", k = 6), trend_model = AR(), noncentred = TRUE,  :
    cmdstanr library not found. Defaulting to rstan