Running tmux commands after creating session

[1995parham]

I want to run a tmux command after the session creation. Using the following command in my tmux.conf:

set-hook -g after-new-session 'display-popup -w 80% -h 60% neofetch'

causes the following exception:

Traceback (most recent call last):
  File "/usr/bin/tmuxp", line 8, in <module>
    sys.exit(cli.cli())
  File "/usr/lib/python3.10/site-packages/tmuxp/cli/__init__.py", line 134, in cli
    command_load(
  File "/usr/lib/python3.10/site-packages/tmuxp/cli/load.py", line 655, in command_load
    load_workspace(
  File "/usr/lib/python3.10/site-packages/tmuxp/cli/load.py", line 446, in load_workspace
    _load_attached(builder, detached)
  File "/usr/lib/python3.10/site-packages/tmuxp/cli/load.py", line 183, in _load_attached
    builder.build()
  File "/usr/lib/python3.10/site-packages/tmuxp/workspace/builder.py", line 217, in build
    session = self.server.new_session(
  File "/usr/lib/python3.10/site-packages/libtmux/server.py", line 605, in new_session
    raise exc.LibTmuxException(proc.stderr)
libtmux.exc.LibTmuxException: ['no current client']

Is there any way to do this using tmuxp?