Running 'spelling.R' [0s]
  Running 'testthat.R' [4s]
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")
  -- 1. Error: (unknown) (@test-create_model_frame.R#1)  -------------------------
  package or namespace load failed for 'dplyr' in library.dynam(lib, package, package.lib):
   DLL 'dplyr' not found: maybe not installed for this architecture?
  Backtrace:
   1. base::library(dplyr)
   2. base::tryCatch(...)
   3. base:::tryCatchList(expr, classes, parentenv, handlers)
   4. base:::tryCatchOne(expr, names, parentenv, handlers[[1L]])
   5. value[[3L]](cond)
  
  -- 2. Error: (unknown) (@test-posterior_predict.R#1)  --------------------------
  package or namespace load failed for 'dplyr' in library.dynam(lib, package, package.lib):
   DLL 'dplyr' not found: maybe not installed for this architecture?
  Backtrace:
   1. base::library(dplyr)
   2. base::tryCatch(...)
   3. base:::tryCatchList(expr, classes, parentenv, handlers)
   4. base:::tryCatchOne(expr, names, parentenv, handlers[[1L]])
   5. value[[3L]](cond)
  
  -- 3. Error: (unknown) (@test-set_prior.R#1)  ----------------------------------
  package or namespace load failed for 'dplyr' in library.dynam(lib, package, package.lib):
   DLL 'dplyr' not found: maybe not installed for this architecture?
  Backtrace:
   1. base::library(dplyr)
   2. base::tryCatch(...)
   3. base:::tryCatchList(expr, classes, parentenv, handlers)
   4. base:::tryCatchOne(expr, names, parentenv, handlers[[1L]])
   5. value[[3L]](cond)
  
  -- 4. Error: (unknown) (@test-stan_emax.R#1)  ----------------------------------
  package or namespace load failed for 'dplyr' in library.dynam(lib, package, package.lib):
   DLL 'dplyr' not found: maybe not installed for this architecture?
  Backtrace:
   1. base::library(dplyr)
   2. base::tryCatch(...)
   3. base:::tryCatchList(expr, classes, parentenv, handlers)
   4. base:::tryCatchOne(expr, names, parentenv, handlers[[1L]])
   5. value[[3L]](cond)
  
  == testthat results  ===========================================================
  [ OK: 0 | SKIPPED: 0 | WARNINGS: 0 | FAILED: 4 ]
  1. Error: (unknown) (@test-create_model_frame.R#1) 
  2. Error: (unknown) (@test-posterior_predict.R#1) 
  3. Error: (unknown) (@test-set_prior.R#1) 
  4. Error: (unknown) (@test-stan_emax.R#1) 
  
  Error: testthat unit tests failed
  Execution halted