* using log directory ‘/srv/hornik/tmp/CRAN/mlr3mbo.Rcheck’
* using R Under development (unstable) (2024-06-24 r86824)
* using platform: x86_64-pc-linux-gnu
* R was compiled by
    Debian clang version 18.1.5 (2)
    Debian flang-new version 18.1.5 (2)
* running under: Debian GNU/Linux trixie/sid
* using session charset: UTF-8
* checking for file ‘mlr3mbo/DESCRIPTION’ ... OK
* checking extension type ... Package
* this is package ‘mlr3mbo’ version ‘0.2.3’
* package encoding: UTF-8
* checking CRAN incoming feasibility ... [6s/12s] NOTE
Maintainer: ‘Lennart Schneider <lennart.sch@web.de>’

Found the following (possibly) invalid URLs:
  URL: https://bbotk.mlr-org.com/reference/OptimInstanceBatchMultiCrit.html
    From: inst/doc/mlr3mbo.html
    Status: 404
    Message: Not Found
  URL: https://bbotk.mlr-org.com/reference/OptimInstanceBatchSingleCrit.html
    From: inst/doc/mlr3mbo.html
    Status: 404
    Message: Not Found
* checking package namespace information ... OK
* checking package dependencies ... ERROR
Packages required and available but unsuitable versions:
  'bbotk', 'mlr3tuning'

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