The "pyasn1-modules" could not be installed
This is my output:
====================
sudo -u synapse python -m synapse.app.homeserver \
      --server-name matrix.example.local \
      --config-path /etc/synapse/homeserver.yaml \
      --generate-config \
      --report-stats=yes
Synapse 1.150.0 needs pyasn1-modules, but it is not installed
Missing Requirements: "pyasn1-modules"
To install run:
    pip install --upgrade --force "pyasn1-modules"

After installation of python-pip and python-pipx the output of [pip install --upgrade --force "pyasn1-modules"] bocomes
===================================================================================================
error: externally-managed-environment

× This environment is externally managed
╰─> To install Python packages system-wide, try 'pacman -S
    python-xyz', where xyz is the package you are trying to
    install.
   
    If you wish to install a non-Arch-packaged Python package,
    create a virtual environment using 'python -m venv path/to/venv'.
    Then use path/to/venv/bin/python and path/to/venv/bin/pip.
   
    If you wish to install a non-Arch packaged Python application,
    it may be easiest to use 'pipx install xyz', which will manage a
    virtual environment for you. Make sure you have python-pipx
    installed via pacman.

note: If you believe this is a mistake, please contact your Python installation or OS distribution provider. You can override this, at the risk of breaking your Python installation or OS, by passing --break-system-packages.
hint: See PEP 668 for the detailed specification.

Thanks in advance. Please suggest a solution.

Last edited by Gopal (2026-06-03 00:17:22)