* using log directory 'd:/Rcompile/CRANpkg/local/3.3/hamlet.Rcheck'
* using R version 3.3.3 (2017-03-06)
* using platform: x86_64-w64-mingw32 (64-bit)
* using session charset: ISO8859-1
* checking for file 'hamlet/DESCRIPTION' ... OK
* checking extension type ... Package
* this is package 'hamlet' version '0.9.5-2'
* 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 'hamlet' 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 ... NOTE
Missing or unexported object: 'lmerTest::summary'
* checking S3 generic/method consistency ... OK
* checking replacement functions ... OK
* checking foreign function calls ... OK
* checking R code for possible problems ... OK
* 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 sizes of PDF files under 'inst/doc' ... OK
* checking installed files from 'inst/doc' ... OK
* checking files in 'vignettes' ... OK
* checking examples ... ERROR
Running examples in 'hamlet-Ex.R' failed
The error most likely occurred in:

> ### Name: mem.powersimu
> ### Title: Power simulations for the fixed effects of a mixed-effects model
> ###   through structured bootstrapping of the data and re-fitting of the
> ###   model
> ### Aliases: mem.powersimu
> ### Keywords: power design mem
> 
> ### ** Examples
> 
> # Use the VCaP ARN data as an example
> data(vcaplong)
> arn <- vcaplong[vcaplong[,"Group"] == "Vehicle" | vcaplong[,"Group"] == "ARN",]
> 
> # lme4 is required for mixed-effects models
> library(lme4)
Loading required package: Matrix
> # Fit an example fixed effects model
> fit <- lmer(PSA ~ 1 + DrugWeek + ARN:DrugWeek + (1|ID) + (0 + DrugWeek|ID), data = arn)
> 
> # For reproducibility, set a seed
> set.seed(123)
> # Run a brief power analysis with only a few selected N values and a limited number of bootstrapping
> # Balance strata over the ARN and non-ARN (=Vehicle) so that both contain equal count of individuals
> power <- mem.powersimu(fit, N=c(4, 7, 10), boot=20, strata="ARN", plot=TRUE)
Error: 'summary' is not an exported object from 'namespace:lmerTest'
Execution halted
* checking for unstated dependencies in vignettes ... OK
* checking package vignettes in 'inst/doc' ... OK
* checking re-building of vignette outputs ... [6s] OK
* checking PDF version of manual ... OK
* DONE
Status: 1 ERROR, 1 NOTE