* using log directory 'd:/Rcompile/CRANpkg/local/4.1/moranajp.Rcheck'
* using R version 4.1.3 (2022-03-10)
* using platform: x86_64-w64-mingw32 (64-bit)
* using session charset: ISO8859-1
* checking for file 'moranajp/DESCRIPTION' ... OK
* this is package 'moranajp' version '0.9.6'
* 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 hidden files and directories ... OK
* checking for portable file names ... OK
* checking whether package 'moranajp' 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 ... [5s] OK
* checking Rd files ... [1s] 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 LazyData ... OK
* checking data for ASCII and uncompressed saves ... OK
* checking installed files from 'inst/doc' ... OK
* checking files in 'vignettes' ... OK
* checking examples ... [6s] ERROR
Running examples in 'moranajp-Ex.R' failed
The error most likely occurred in:

> ### Name: draw_bigram_network
> ### Title: Draw bigram network using morphological analysis data.
> ### Aliases: draw_bigram_network bigram bigram_depend bigram_network
> ###   word_freq bigram_network_plot
> 
> ### ** Examples
> 
> library(magrittr)
> data(synonym)
> synonym <- unescape_utf(synonym)
> 
> data(neko_mecab)
> neko_mecab <- 
+   neko_mecab  %>%
+   unescape_utf() %>%
+   add_sentence_no() %>%
+   clean_up(use_common_data = TRUE, synonym_df = synonym)
Joining with `by = join_by(`<U+539F><U+5F62>`)`
> 
> bigram_neko <- 
+   neko_mecab %>%
+   draw_bigram_network()
Warning in bigram(df, ...) :
  Not used group. sentence has only one category.
Error in UseMethod("slice") : 
  no applicable method for 'slice' applied to an object of class "character"
Calls: %>% ... draw_bigram_network -> bigram_network -> <Anonymous>
Execution halted
* checking for unstated dependencies in 'tests' ... OK
* checking tests ... [2s] OK
  Running 'testthat.R' [2s]
* checking for unstated dependencies in vignettes ... OK
* checking package vignettes in 'inst/doc' ... OK
* checking re-building of vignette outputs ... [5s] OK
* checking PDF version of manual ... OK
* DONE
Status: 1 ERROR