* using log directory ‘/data/blackswan/ripley/R/packages/tests-devel/forestat.Rcheck’
* using R Under development (unstable) (2025-11-17 r89032)
* using platform: x86_64-pc-linux-gnu
* R was compiled by
    gcc (GCC) 14.2.1 20240912 (Red Hat 14.2.1-3)
    GNU Fortran (GCC) 14.2.1 20240912 (Red Hat 14.2.1-3)
* running under: Fedora Linux 40 (Workstation Edition)
* using session charset: UTF-8
* checking for file ‘forestat/DESCRIPTION’ ... OK
* checking extension type ... Package
* this is package ‘forestat’ version ‘1.1.0’
* 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 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 ‘forestat’ can be installed ... [10s/10s] 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 ... 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 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 ... [18s/19s] OK
* checking Rd files ... OK
* checking Rd metadata ... OK
* checking Rd line widths ... 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 ... OK
* checking examples with --run-donttest ... ERROR
Running examples in ‘forestat-Ex.R’ failed
The error most likely occurred in:

> ### Name: class.plot
> ### Title: Calculate the site classes based on stand height growth
> ### Aliases: class.plot
> 
> ### ** Examples
> 
> ## No test: 
> # Load sample data
> data("forestData")
> 
> # Build a model based on the forestData and return a forestData class object
> forestData <- class.plot(forestData,model="Richards",
+                          interval=5,number=5,maxiter=1000,
+                          H_start=c(a=20,b=0.05,c=1.0))
Warning in nlme.formula(BA ~ a * (1 - exp(-b * (S/1000)^c * AGE))^d, data = data,  :
  step halving factor reduced below minimum in PNLS step
Warning in nlme.formula(BA ~ a * (1 - exp(-b * (S/1000)^c * AGE))^d, data = data,  :
  step halving factor reduced below minimum in PNLS step
Error in nlme.formula(Bio ~ a * (1 - exp(-b * (S/1000)^c * AGE))^d, data = data,  : 
  Singularity in backsolve at level 0, block 1
Calls: class.plot -> nlme -> nlme.formula
Execution halted
* checking for unstated dependencies in vignettes ... OK
* checking package vignettes ... OK
* checking re-building of vignette outputs ... [13s/13s] OK
* checking PDF version of manual ... OK
* checking for non-standard things in the check directory ... OK
* checking for detritus in the temp directory ... OK
* checking for new files in some other directories ... OK
* DONE

Status: 1 ERROR
See
  ‘/data/blackswan/ripley/R/packages/tests-devel/forestat.Rcheck/00check.log’
for details.

Command exited with non-zero status 1
Time 1:56.64, 91.52 + 22.52