Hi. I think you might have an old GHDL version.
$ rlwrap -c tclsh
$ source ../OsvvmLibraries/Scripts/StartUp.tcl
OSVVM Script Version: 2025.02
Simulator Version: GHDL-5.0.0-dev
Regarding GHDL, make sure you have tcllib installed sudo apt install tcllib and for GHDL:
sudo apt install git gnat llvm clang make zlib1g-dev
git clone https://github.com/ghdl/ghdl.git
cd ghdl
./configure --prefix=/usr/local
make
sudo make install
ghdl --version
