* using log directory 'd:/Rcompile/CRANpkg/local/3.5/MachineShop.Rcheck'
* using R version 3.5.3 (2019-03-11)
* using platform: x86_64-w64-mingw32 (64-bit)
* using session charset: ISO8859-1
* checking for file 'MachineShop/DESCRIPTION' ... OK
* checking extension type ... Package
* this is package 'MachineShop' version '1.6.0'
* checking package namespace information ... OK
* checking package dependencies ... OK
* checking if this is a source package ... OK
* checking if there is a namespace ... OK
* checking for hidden files and directories ... OK
* checking for portable file names ... OK
* checking whether package 'MachineShop' can be installed ... OK
* checking installed package size ... OK
* checking package directory ... OK
* checking 'build' directory ... OK
* checking DESCRIPTION meta-information ... OK
* checking top-level files ... OK
* checking for left-over files ... OK
* checking index information ... OK
* checking package subdirectories ... OK
* checking R files for non-ASCII characters ... OK
* checking R files for syntax errors ... OK
* checking whether the package can be loaded ... OK
* checking whether the package can be loaded with stated dependencies ... OK
* checking whether the package can be unloaded cleanly ... OK
* checking whether the namespace can be loaded with stated dependencies ... OK
* checking whether the namespace can be unloaded cleanly ... OK
* checking loading without being on the library search path ... OK
* checking use of S3 registration ... OK
* checking dependencies in R code ... OK
* checking S3 generic/method consistency ... OK
* checking replacement functions ... OK
* checking foreign function calls ... OK
* checking R code for possible problems ... [22s] NOTE
DomainError: no visible global function definition for 'errorCondition'
fget0: no visible global function definition for 'str2lang'
Undefined global functions or variables:
  errorCondition str2lang
* checking Rd files ... OK
* checking Rd metadata ... OK
* checking Rd cross-references ... OK
* checking for missing documentation entries ... OK
* checking for code/documentation mismatches ... OK
* checking Rd \usage sections ... OK
* checking Rd contents ... OK
* checking for unstated dependencies in examples ... OK
* checking contents of 'data' directory ... OK
* checking data for non-ASCII characters ... OK
* checking data for ASCII and uncompressed saves ... OK
* checking installed files from 'inst/doc' ... OK
* checking files in 'vignettes' ... OK
* checking examples ... ERROR
Running examples in 'MachineShop-Ex.R' failed
The error most likely occurred in:

> ### Name: MLModel
> ### Title: MLModel Class Constructor
> ### Aliases: MLModel
> 
> ### ** Examples
> 
> ## Logistic regression model
> LogisticModel <- MLModel(
+   name = "LogisticModel",
+   response_types = "binary",
+   fit = function(formula, data, weights, ...) {
+     glm(formula, data = data, weights = weights, family = binomial, ...)
+   },
+   predict = function(object, newdata, ...) {
+     predict(object, newdata = newdata, type = "response")
+   },
+   varimp = function(object, ...) {
+     pchisq(coef(object)^2 / diag(vcov(object)), 1)
+   }
+ )
> 
> library(MASS)
> res <- resample(type ~ ., data = Pima.tr, model = LogisticModel)
Error in str2lang(x) : could not find function "str2lang"
Calls: resample ... resample.ModelFrame -> .resample -> getMLObject -> fget -> fget0
Execution halted
* checking for unstated dependencies in 'tests' ... OK
* checking tests ... [7s] ERROR
  Running 'testthat.R' [6s]
Running the tests in 'tests/testthat.R' failed.
Complete output:
  > library(testthat)
  > library(MachineShop)
  > 
  > test_check("MachineShop")
  -- 1. Error: (unknown) (@test-ML_StackedModel.R#3)  ----------------------------
  could not find function "str2lang"
  Backtrace:
   1. MachineShop::StackedModel(GBMModel, GLMNetModel(lambda = 0.01))
   2. MachineShop:::getMLObject(control, "MLControl")
   3. MachineShop:::fget(x)
   4. MachineShop:::fget0(x)
  
  == testthat results  ===========================================================
  [ OK: 0 | SKIPPED: 67 | WARNINGS: 0 | FAILED: 1 ]
  1. Error: (unknown) (@test-ML_StackedModel.R#3) 
  
  Error: testthat unit tests failed
  Execution halted
* checking for unstated dependencies in vignettes ... OK
* checking package vignettes in 'inst/doc' ... OK
* checking re-building of vignette outputs ... [7s] WARNING
Error in re-building vignettes:
  ...
Warning: Removed 70 rows containing missing values (geom_point).
Quitting from lines 185-190 (Introduction.Rmd) 
Error: processing vignette 'Introduction.Rmd' failed with diagnostics:
could not find function "str2lang"
Execution halted

* checking PDF version of manual ... OK
* DONE
Status: 2 ERRORs, 1 WARNING, 1 NOTE