* using log directory 'd:/RCompile/CRANincoming/R-devel/OptOTrials.Rcheck'
* using R Under development (unstable) (2025-08-21 r88668 ucrt)
* using platform: x86_64-w64-mingw32
* R was compiled by
    gcc.exe (GCC) 14.2.0
    GNU Fortran (GCC) 14.2.0
* running under: Windows Server 2022 x64 (build 20348)
* using session charset: UTF-8
* checking for file 'OptOTrials/DESCRIPTION' ... OK
* checking extension type ... ERROR
Extensions with Type 'R Package' cannot be checked.
* DONE
Status: 1 ERROR