Error running planarize_quads.py of compas_libigl

Having the error:

Traceback (most recent call last):
File “c:/Users/sercan/Documents/GitHub/compas-dev/packages/compas_libigl/scripts/planarize_quads.py”, line 4, in
from compas.datastructures import Mesh
File “c:\users\sercan\documents\github\compas-dev\compas\src\compas\datastructures_init_.py”, line 185, in
from .mesh import * # noqa: F401 F402 F403
File “c:\users\sercan\documents\github\compas-dev\compas\src\compas\datastructures\mesh_init_.py”, line 42, in
from .planarisation import * # noqa: F401 F403
ImportError: bad magic number in ‘compas.datastructures.mesh.planarisation’: b’\x03\xf3\r\n’

when trying to run the planarize_quads.py (or actually any of the scripts).
Any hints how to avoid this?
Thanks!

have you built the package or are you trying to use it as is?