ffappend Error in get(".rambytes") : object '.rambytes' not found when package ff not explicitly loaded

[chrisvwn]

Hi,

I am getting the error:

 Error in get(".rambytes") : object '.rambytes' not found

when I use the ffbase::ffappend function within the package Rnightlights.

The relevant part of the traceback when this happens is:

Error in get(".rambytes") : object '.rambytes' not found 
11. get(".rambytes") 
10. chunk.default(y) 
9. chunk(y) 
8. ffbase::ffappend(vals, rastVals, adjustvmode = T) at stats.R#132

rastVals is a numeric vector and vals is an ff_vector.

My sessionInfo:

> sessionInfo()
R version 4.0.3 (2020-10-10)
Platform: x86_64-redhat-linux-gnu (64-bit)
Running under: Fedora 32 (Workstation Edition)

Matrix products: default
BLAS/LAPACK: /usr/lib64/libopenblas-r0.3.10.so

locale:
 [1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C               LC_TIME=en_US.UTF-8       
 [4] LC_COLLATE=en_US.UTF-8     LC_MONETARY=en_US.UTF-8    LC_MESSAGES=en_US.UTF-8   
 [7] LC_PAPER=en_US.UTF-8       LC_NAME=C                  LC_ADDRESS=C              
[10] LC_TELEPHONE=C             LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C       

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
[1] Rnightlights_0.2.4.5

loaded via a namespace (and not attached):
 [1] Rcpp_1.0.5         compiler_4.0.3     pillar_1.4.6       plyr_1.8.6        
 [5] class_7.3-17       R.methodsS3_1.8.1  R.utils_2.10.1     iterators_1.0.12  
 [9] tools_4.0.3        gdalUtils_2.0.3.2  bit_4.0.4          digest_0.6.27     
[13] lubridate_1.7.9    tibble_3.0.4       lifecycle_0.2.0    lattice_0.20-41   
[17] ff_4.0.2           doSNOW_1.0.18      pkgconfig_2.0.3    rlang_0.4.8       
[21] fastmatch_1.1-0    foreach_1.5.0      DBI_1.1.0          rstudioapi_0.11   
[25] parallel_4.0.3     yaml_2.2.1         rgdal_1.5-16       e1071_1.7-4       
[29] httr_1.4.2         stringr_1.4.0      dplyr_1.0.2        raster_3.3-13     
[33] xml2_1.3.2         generics_0.0.2     vctrs_0.3.4        rgeos_0.5-5       
[37] hms_0.5.3          classInt_0.4-3     grid_4.0.3         tidyselect_1.1.0  
[41] ffbase_0.13.1      glue_1.4.2         data.table_1.13.2  sf_0.9-6          
[45] R6_2.5.0           snow_0.4-3         sp_1.4-2           selectr_0.4-2     
[49] readr_1.3.1        reshape2_1.4.4     purrr_0.3.4        magrittr_1.5      
[53] units_0.6-7        codetools_0.2-16   settings_0.2.4     ellipsis_0.3.1    
[57] rvest_0.3.5        fasterize_1.0.3    KernSmooth_2.23-17 stringi_1.5.3     
[61] crayon_1.3.4       R.oo_1.24.0

get(".rambytes") seems to work when I load the ff package explicitly via library().

Not sure if I should post this here or on the ff package page.