* using log directory ‘/srv/hornik/tmp/CRAN/IsoplotRgui.Rcheck’
* using R Under development (unstable) (2023-08-27 r85021)
* using platform: x86_64-pc-linux-gnu
* R was compiled by
    Debian clang version 16.0.6 (10)
    GNU Fortran (Debian 13.2.0-1) 13.2.0
* running under: Debian GNU/Linux trixie/sid
* using session charset: UTF-8
* checking for file ‘IsoplotRgui/DESCRIPTION’ ... OK
* this is package ‘IsoplotRgui’ version ‘5.4’
* package encoding: UTF-8
* checking CRAN incoming feasibility ... [3s/4s] Note_to_CRAN_maintainers
Maintainer: ‘Pieter Vermeesch <p.vermeesch@ucl.ac.uk>’
* checking package namespace information ... OK
* checking package dependencies ... ERROR
Package required and available but unsuitable version: ‘IsoplotR’

See section ‘The DESCRIPTION file’ in the ‘Writing R Extensions’
manual.
* DONE
Status: 1 ERROR