* using log directory 'd:/Rcompile/CRANpkg/local/4.6/biblionetwork.Rcheck'
* using R Under development (unstable) (2025-12-23 r89222 ucrt)
* using platform: x86_64-w64-mingw32
* R was compiled by
    gcc.exe (GCC) 14.3.0
    GNU Fortran (GCC) 14.3.0
* running under: Windows Server 2022 x64 (build 20348)
* using session charset: UTF-8
* checking for file 'biblionetwork/DESCRIPTION' ... OK
* this is package 'biblionetwork' version '0.1.0'
* 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 'biblionetwork' 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 code files for non-ASCII characters ... OK
* checking R files for syntax errors ... OK
* checking whether the package can be loaded ... [1s] OK
* checking whether the package can be loaded with stated dependencies ... [0s] OK
* checking whether the package can be unloaded cleanly ... [0s] OK
* checking whether the namespace can be loaded with stated dependencies ... [0s] OK
* checking whether the namespace can be unloaded cleanly ... [1s] OK
* checking loading without being on the library search path ... [0s] 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 ... [3s] 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 ... [1s] 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 ... [1s] ERROR
Running examples in 'biblionetwork-Ex.R' failed
The error most likely occurred in:

> ### Name: biblio_cocitation
> ### Title: Calculating the Coupling Angle Measure for Edges in a
> ###   Co-citation Network
> ### Aliases: biblio_cocitation
> 
> ### ** Examples
> 
> library(biblionetwork)
> biblio_cocitation(Ref_stagflation,
+ source = "Citing_ItemID_Ref",
+ ref = "ItemID_Ref")
Error in `[.data.table`(dt, , `:=`(N, .N), by = id_art) : 
  attempt access index 2/2 in VECTOR_ELT
Calls: biblio_cocitation -> [ -> [.data.table
Execution halted
* checking for unstated dependencies in vignettes ... OK
* checking package vignettes ... OK
* checking re-building of vignette outputs ... [2s] ERROR
Error(s) in re-building vignettes:
--- re-building 'Using_biblionetwork.Rmd' using rmarkdown

Quitting from Using_biblionetwork.Rmd:50-58 [coupling angle]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error in `[.data.table`:
! attempt access index 2/2 in VECTOR_ELT
---
Backtrace:
    ▆
 1. └─biblionetwork::biblio_coupling(...)
 2.   ├─dt[, `:=`(N, .N), by = id_ref]
 3.   └─data.table:::`[.data.table`(dt, , `:=`(N, .N), by = id_ref)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'Using_biblionetwork.Rmd' failed with diagnostics:
attempt access index 2/2 in VECTOR_ELT
--- failed re-building 'Using_biblionetwork.Rmd'

SUMMARY: processing the following file failed:
  'Using_biblionetwork.Rmd'

Error: Vignette re-building failed.
Execution halted

* checking PDF version of manual ... [26s] OK
* checking HTML version of manual ... [3s] OK
* DONE
Status: 2 ERRORs