请从power BI解决此错误？

Question

DataSource.Error: ADO.NET: Python script error.
Traceback (most recent call last):
  File "PythonScriptWrapper.PY", line 3, in <module>
    matplotlib.use('Agg')
  File "C:\USERS\KHALA\ANACONDA3\lib\site-packages\matplotlib\cbook\deprecation.py", line 296, in wrapper
    return func(*args, **kwargs)
  File "C:\USERS\KHALA\ANACONDA3\lib\site-packages\matplotlib\cbook\deprecation.py", line 358, in wrapper
    return func(*args, **kwargs)
  File "C:\USERS\KHALA\ANACONDA3\lib\site-packages\matplotlib\__init__.py", line 1280, in use
    from matplotlib import pyplot as plt
  File "C:\USERS\KHALA\ANACONDA3\lib\site-packages\matplotlib\pyplot.py", line 2282, in <module>
    switch_backend(rcParams["backend"])
  File "C:\USERS\KHALA\ANACONDA3\lib\site-packages\matplotlib\pyplot.py", line 221, in switch_backend
    backend_mod = importlib.import_module(backend_name)
  File "C:\USERS\KHALA\ANACONDA3\lib\importlib\__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "C:\USERS\KHALA\ANACONDA3\lib\site-packages\matplotlib\backends\backend_agg.py", line 50, in <module>
    from PIL import Image
  File "C:\USERS\KHALA\ANACONDA3\lib\site-packages\PIL\Image.py", line 94, in <module>
    from . import _imaging as core
ImportError: DLL load failed while importing _imaging: The specified module could not be found.

Details:
    DataSourceKind=Python
    DataSourcePath=Python
    Message=Python script error.
Traceback (most recent call last):
  File "PythonScriptWrapper.PY", line 3, in <module>
    matplotlib.use('Agg')
  File "C:\USERS\KHALA\ANACONDA3\lib\site-packages\matplotlib\cbook\deprecation.py", line 296, in wrapper
    return func(*args, **kwargs)
  File "C:\USERS\KHALA\ANACONDA3\lib\site-packages\matplotlib\cbook\deprecation.py", line 358, in wrapper
    return func(*args, **kwargs)
  File "C:\USERS\KHALA\ANACONDA3\lib\site-packages\matplotlib\__init__.py", line 1280, in use
    from matplotlib import pyplot as plt
  File "C:\USERS\KHALA\ANACONDA3\lib\site-packages\matplotlib\pyplot.py", line 2282, in <module>
    switch_backend(rcParams["backend"])
  File "C:\USERS\KHALA\ANACONDA3\lib\site-packages\matplotlib\pyplot.py", line 221, in switch_backend
    backend_mod = importlib.import_module(backend_name)
  File "C:\USERS\KHALA\ANACONDA3\lib\importlib\__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "C:...
    ErrorCode=-2147467259
    ExceptionType=Microsoft.PowerBI.Scripting.Python.Exceptions.PythonScriptRuntimeException

**在训练数据集时，power BI的python脚本中出现此错误。我已安装所有必需的库，但仍有错误…**