* using log directory ‘/Users/ripley/R/packages/tests-devel/KDViz.Rcheck’
* using R Under development (unstable) (2021-03-18 r80099)
* using platform: aarch64-apple-darwin20.3.0 (64-bit)
* using session charset: UTF-8
* using option ‘--no-stop-on-test-error’
* checking for file ‘KDViz/DESCRIPTION’ ... OK
* checking extension type ... Package
* this is package ‘KDViz’ version ‘1.3.1’
* package encoding: UTF-8
* 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 executable files ... OK
* checking for hidden files and directories ... OK
* checking for portable file names ... OK
* checking for sufficient/correct file permissions ... OK
* checking whether package ‘KDViz’ can be installed ... [7s/19s] OK
* checking installed package size ... OK
* checking package 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 ... 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 ... NOTE
  Note: found 11 marked UTF-8 strings
* checking data for ASCII and uncompressed saves ... OK
* checking examples ... ERROR
Running examples in ‘KDViz-Ex.R’ failed
The error most likely occurred in:

> ### Name: ArticleSearch
> ### Title: Search articles from web
> ### Aliases: ArticleSearch
> ### Keywords: articles web scrapping
> 
> ### ** Examples
> 
> myBibData <- ArticleSearch(c("knowledge domain visualization"),
+   webSite = "ScienceDirect", maxSize = 7, saveCSV = FALSE)
Error in if (maxSize < resultsFound) { : 
  missing value where TRUE/FALSE needed
Calls: ArticleSearch
Execution halted
* checking PDF version of manual ... OK
* checking for detritus in the temp directory ... OK
* DONE

Status: 1 ERROR, 1 NOTE
See
  ‘/Users/ripley/R/packages/tests-devel/KDViz.Rcheck/00check.log’
for details.

       57.51 real        27.41 user         8.35 sys