* using log directory 'd:/Rcompile/CRANpkg/local/4.3/OptimModel.Rcheck'
* using R version 4.3.3 (2024-02-29 ucrt)
* using platform: x86_64-w64-mingw32 (64-bit)
* R was compiled by
    gcc.exe (GCC) 12.3.0
    GNU Fortran (GCC) 12.3.0
* running under: Windows Server 2022 x64 (build 20348)
* using session charset: UTF-8
* checking for file 'OptimModel/DESCRIPTION' ... OK
* checking extension type ... Package
* this is package 'OptimModel' version '2.0-1'
* 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 hidden files and directories ... OK
* checking for portable file names ... OK
* checking whether package 'OptimModel' 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 ... [2s] OK
* checking whether the package can be loaded with stated dependencies ... [2s] OK
* checking whether the package can be unloaded cleanly ... [2s] OK
* checking whether the namespace can be loaded with stated dependencies ... [2s] OK
* checking whether the namespace can be unloaded cleanly ... [2s] OK
* checking loading without being on the library search path ... [2s] 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 ... [10s] 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 installed files from 'inst/doc' ... OK
* checking files in 'vignettes' ... OK
* checking examples ... [9s] OK
* checking for unstated dependencies in 'tests' ... OK
* checking tests ... [5s] OK
  Running 'testthat.R' [5s]
* checking for unstated dependencies in vignettes ... OK
* checking package vignettes in 'inst/doc' ... OK
* checking re-building of vignette outputs ... [10s] ERROR
Error(s) in re-building vignettes:
--- re-building 'OptimModel_vignette.Rmd' using rmarkdown

Quitting from lines 393-408 [unnamed-chunk-10] (OptimModel_vignette.Rmd)
Error: processing vignette 'OptimModel_vignette.Rmd' failed with diagnostics:
<text>:11:1: unexpected '<'
10: attr(f.model,"srcref") <- 
11: <
    ^
--- failed re-building 'OptimModel_vignette.Rmd'

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

Error: Vignette re-building failed.
Execution halted

* checking PDF version of manual ... [17s] OK
* checking HTML version of manual ... [5s] OK
* DONE
Status: 1 ERROR