Bench Update Error python setup.py egg_info

Hi all,

I just upgraded to Version 8 and i got this error message while trying to do “bench update”
INFO:bench.utils:updating bench
Already up-to-date.
Requirement already satisfied: Pillow in ./env/lib/python2.7/site-packages
Requirement already satisfied: olefile in ./env/lib/python2.7/site-packages (from Pillow)
INFO:bench.app:pulling frappe
From http://github.com/frappe/frappe

  • branch master -> FETCH_HEAD
    Already up-to-date.
    INFO:bench.app:pulling erpnext
    From http://github.com/frappe/erpnext
  • branch master -> FETCH_HEAD
    Already up-to-date.
    Requirement already up-to-date: pip in ./env/lib/python2.7/site-packages
    Command “python setup.py egg_info” failed with error code 1 in /tmp/pip-build-3_uREJ/frappe/
    Traceback (most recent call last):
    File “/usr/local/bin/bench”, line 11, in
    load_entry_point(‘bench’, ‘console_scripts’, ‘bench’)()
    File “/home/frappe/.bench/bench/cli.py”, line 40, in cli
    bench_command()
    File “/usr/local/lib/python2.7/dist-packages/click/core.py”, line 722, in call
    return self.main(*args, **kwargs)
    File “/usr/local/lib/python2.7/dist-packages/click/core.py”, line 697, in main
    rv = self.invoke(ctx)
    File “/usr/local/lib/python2.7/dist-packages/click/core.py”, line 1066, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
    File “/usr/local/lib/python2.7/dist-packages/click/core.py”, line 895, in invoke
    return ctx.invoke(self.callback, **ctx.params)
    File “/usr/local/lib/python2.7/dist-packages/click/core.py”, line 535, in invoke
    return callback(*args, **kwargs)
    File “/home/frappe/.bench/bench/commands/update.py”, line 62, in update
    _update(pull, patch, build, bench, auto, restart_supervisor, requirements, no_backup, upgrade, force=force, reset=reset)
    File “/home/frappe/.bench/bench/commands/update.py”, line 81, in _update
    update_requirements(bench_path=bench_path)
    File “/home/frappe/.bench/bench/utils.py”, line 380, in update_requirements
    install_requirements(pip, req_file)
    File “/home/frappe/.bench/bench/utils.py”, line 384, in install_requirements
    exec_cmd("{pip} install -q -r {req_file}".format(pip=pip, req_file=req_file))
    File “/home/frappe/.bench/bench/utils.py”, line 127, in exec_cmd
    raise CommandFailedError(cmd)
    bench.utils.CommandFailedError: ./env/bin/pip install -q -r ./apps/erpnext/requirements.txt

How can i fix this