Error(s) in re-building vignettes:
--- re-building ‘adding_hypotheses.Rmd’ using rmarkdown

Quitting from adding_hypotheses.Rmd:185-194 [unnamed-chunk-7]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error in `loadNamespace()`:
! there is no package called 'qs2'
---
Backtrace:
     ▆
  1. ├─irtpwr::setup.hypothesis(type = h_2PL_basic, altpars = altpars)
  2. │ └─type$res(altpars = altpars, nullpars = nullpars)
  3. └─base::loadNamespace(x)
  4.   ├─base::namespaceImportFrom(...)
  5.   │ └─base::asNamespace(ns)
  6.   └─base::loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]])
  7.     ├─base::namespaceImportFrom(...)
  8.     │ └─base::asNamespace(ns)
  9.     └─base::loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]])
 10.       └─base::withRestarts(stop(cond), retry_loadNamespace = function() NULL)
 11.         └─base (local) withOneRestart(expr, restarts[[1L]])
 12.           └─base (local) doWithOneRestart(return(expr), restart)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'adding_hypotheses.Rmd' failed with diagnostics:
there is no package called 'qs2'
--- failed re-building ‘adding_hypotheses.Rmd’

--- re-building ‘demo.Rmd’ using rmarkdown

Quitting from demo.Rmd:43-46 [unnamed-chunk-3]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error:
! package or namespace load failed for 'mirt' in loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]]):
 there is no package called 'qs2'
---
Backtrace:
    ▆
 1. └─base::library(mirt)
 2.   └─base::tryCatch(...)
 3.     └─base (local) tryCatchList(expr, classes, parentenv, handlers)
 4.       └─base (local) tryCatchOne(expr, names, parentenv, handlers[[1L]])
 5.         └─value[[3L]](cond)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'demo.Rmd' failed with diagnostics:
package or namespace load failed for 'mirt' in loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]]):
 there is no package called 'qs2'
--- failed re-building ‘demo.Rmd’

--- re-building ‘hypothesis_templates.Rmd’ using rmarkdown
--- finished re-building ‘hypothesis_templates.Rmd’

--- re-building ‘power_analysis.Rmd’ using rmarkdown

Quitting from power_analysis.Rmd:84-90 [Rasch vs 2PL setup.hypothesis a priori]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error in `loadNamespace()`:
! there is no package called 'qs2'
---
Backtrace:
     ▆
  1. ├─irtpwr::setup.hypothesis(type = "1PLvs2PL", altpars = altpars)
  2. │ └─type$res(altpars = altpars, nullpars = nullpars)
  3. └─base::loadNamespace(x)
  4.   ├─base::namespaceImportFrom(...)
  5.   │ └─base::asNamespace(ns)
  6.   └─base::loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]])
  7.     ├─base::namespaceImportFrom(...)
  8.     │ └─base::asNamespace(ns)
  9.     └─base::loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]])
 10.       └─base::withRestarts(stop(cond), retry_loadNamespace = function() NULL)
 11.         └─base (local) withOneRestart(expr, restarts[[1L]])
 12.           └─base (local) doWithOneRestart(return(expr), restart)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'power_analysis.Rmd' failed with diagnostics:
there is no package called 'qs2'
--- failed re-building ‘power_analysis.Rmd’

SUMMARY: processing the following files failed:
  ‘adding_hypotheses.Rmd’ ‘demo.Rmd’ ‘power_analysis.Rmd’

Error: Vignette re-building failed.
Execution halted