Error(s) in re-building vignettes:
  ...
--- re-building ‘model_evaluation_audit.Rmd’ using knitr
Quitting from lines 70-71 (model_evaluation_audit.Rmd) 
Error: processing vignette 'model_evaluation_audit.Rmd' failed with diagnostics:
VECTOR_ELT() can only be applied to a 'list', not a 'double'
--- failed re-building ‘model_evaluation_audit.Rmd’

--- re-building ‘model_fit_audit.Rmd’ using knitr
Quitting from lines 74-75 (model_fit_audit.Rmd) 
Error: processing vignette 'model_fit_audit.Rmd' failed with diagnostics:
VECTOR_ELT() can only be applied to a 'list', not a 'double'
--- failed re-building ‘model_fit_audit.Rmd’

--- re-building ‘model_performance_audit.Rmd’ using knitr
Welcome to DALEX (version: 0.3.0).
This is a plain DALEX. Use 'install_dependencies()' to get all required packages.
randomForest 4.6-14
Type rfNews() to see new features/changes/bug fixes.
Coordinate system already present. Adding new coordinate system, which will replace the existing one.
Quitting from lines 80-81 (model_performance_audit.Rmd) 
Error: processing vignette 'model_performance_audit.Rmd' failed with diagnostics:
VECTOR_ELT() can only be applied to a 'list', not a 'double'
--- failed re-building ‘model_performance_audit.Rmd’

--- re-building ‘model_residuals_audit.Rmd’ using knitr
Welcome to DALEX (version: 0.3.0).
This is a plain DALEX. Use 'install_dependencies()' to get all required packages.
randomForest 4.6-14
Type rfNews() to see new features/changes/bug fixes.
Quitting from lines 131-136 (model_residuals_audit.Rmd) 
Error: processing vignette 'model_residuals_audit.Rmd' failed with diagnostics:
VECTOR_ELT() can only be applied to a 'list', not a 'double'
--- failed re-building ‘model_residuals_audit.Rmd’

--- re-building ‘observation_influence_audit.Rmd’ using knitr
Welcome to DALEX (version: 0.3.0).
This is a plain DALEX. Use 'install_dependencies()' to get all required packages.
randomForest 4.6-14
Type rfNews() to see new features/changes/bug fixes.
Warning in data.frame(cooks.dist = cooksDistances, label = object$label,  :
  row names were found from a short variable and have been discarded
Quitting from lines 114-115 (observation_influence_audit.Rmd) 
Error: processing vignette 'observation_influence_audit.Rmd' failed with diagnostics:
VECTOR_ELT() can only be applied to a 'list', not a 'double'
--- failed re-building ‘observation_influence_audit.Rmd’

SUMMARY: processing the following files failed:
  ‘model_evaluation_audit.Rmd’ ‘model_fit_audit.Rmd’
  ‘model_performance_audit.Rmd’ ‘model_residuals_audit.Rmd’
  ‘observation_influence_audit.Rmd’

Error: Vignette re-building failed.
Execution halted