Cannot call causalml after installation

[MingyueHe]

Describe the bug
I cannot call any class in causalml after installation

To Reproduce

If I call one class in causalml, I will get the following errors:

from causalml.inference.tree import CausalTreeRegressor
Traceback (most recent call last):

Input In [3] in <cell line: 1>
from causalml.inference.tree import CausalTreeRegressor

File ~\Anaconda3\lib\site-packages\causalml\inference\tree_init_.py:1 in
from .causal.causaltree import CausalTreeRegressor

File ~\Anaconda3\lib\site-packages\causalml\inference\tree\causal\causaltree.py:14 in
from causalml.inference.meta.utils import check_treatment_vector

File ~\Anaconda3\lib\site-packages\causalml\inference\meta_init_.py:1 in
from .slearner import LRSRegressor, BaseSLearner, BaseSRegressor, BaseSClassifier

File ~\Anaconda3\lib\site-packages\causalml\inference\meta\slearner.py:9 in
from causalml.inference.meta.base import BaseLearner

File ~\Anaconda3\lib\site-packages\causalml\inference\meta\base.py:6 in
from causalml.inference.meta.explainer import Explainer

File ~\Anaconda3\lib\site-packages\causalml\inference\meta\explainer.py:2 in
import shap

File ~\Anaconda3\lib\site-packages\shap_init_.py:5 in
from ._explanation import Explanation, Cohorts

File ~\Anaconda3\lib\site-packages\shap_explanation.py:13 in
from .utils._exceptions import DimensionError

File ~\Anaconda3\lib\site-packages\shap\utils_init_.py:1 in
from ._clustering import (

File ~\Anaconda3\lib\site-packages\shap\utils_clustering.py:7 in
from numba import njit

File ~\Anaconda3\lib\site-packages\numba_init_.py:200 in
_ensure_critical_deps()

File ~\Anaconda3\lib\site-packages\numba_init_.py:140 in _ensure_critical_deps
raise ImportError("Numba needs NumPy 1.21 or less")

ImportError: Numba needs NumPy 1.21 or less

Since I see this "ImportError: Numba needs NumPy 1.21 or less" ourpur, I try to use numpy version == 1.20.1. However, I face errors again as follows:

from causalml.inference.tree import CausalTreeRegressor
Traceback (most recent call last):

Input In [2] in <cell line: 1>
from causalml.inference.tree import CausalTreeRegressor

File ~\Anaconda3\lib\site-packages\causalml\inference\tree_init_.py:1 in
from .causal.causaltree import CausalTreeRegressor

File ~\Anaconda3\lib\site-packages\causalml\inference\tree\causal\causaltree.py:15 in
from ._tree import BaseCausalDecisionTree

File ~\Anaconda3\lib\site-packages\causalml\inference\tree\causal_tree.py:16 in
from ._builder import DepthFirstCausalTreeBuilder, BestFirstCausalTreeBuilder

File causalml\inference\tree\causal_builder.pyx:1 in init causalml.inference.tree.causal._builder

ValueError: numpy.ndarray size changed, may indicate binary incompatibility. Expected 96 from C header, got 88 from PyObject

Environment (please complete the following information):

• OS: [Windows]
• Python Version: 3.9

Additional context
I am quite confused here. Please help me with this.

[alexander-pv]

Hi, @MingyueHe, the latest PRs should solve your issue. Please, try to install the package from source.

[jeongyoonlee]

Closing this as it is resolved in #686.