Traceback (most recent call last):


 "<ipython-input-21-4e8f156b43fb>", line 3, in <module>

autodiscover=True)


 "Lib\site-packages\exchangelib\account.py", line 54, in __init__

credentials=credentials, verify_ssl=verify_ssl)


 "Lib\site-packages\exchangelib\autodiscover.py", line 177, in discover

protocol=protocol)


 "Lib\site-packages\exchangelib\autodiscover.py", line 321, in _autodiscover_quick

verify_ssl=protocol.verify_ssl)


 "Lib\site-packages\exchangelib\protocol.py", line 168, in __call__

protocol = super(CachingProtocol, cls).__call__(*args, **kwargs)


 "Lib\site-packages\exchangelib\protocol.py", line 222, in __init__

self.version = Version.guess(self)


 "Lib\site-packages\exchangelib\version.py", line 194, in guess

return cls._guess_version_from_service(protocol=protocol, hint=api_version)


 "Lib\site-packages\exchangelib\version.py", line 224, in _guess_version_from_service

ResolveNames(protocol=protocol).call(unresolved_entries=[protocol.credentials.username])


 "Lib\site-packages\exchangelib\services.py", line 981, in call

return_full_contact_data=return_full_contact_data,


 "Lib\site-packages\exchangelib\services.py", line 72, in _get_elements

response = self._get_response_xml(payload=payload)


 "Lib\site-packages\exchangelib\services.py", line 159, in _get_response_xml

new_version = Version.from_response(requested_api_version=api_version, response=r.text)


 "Lib\site-packages\exchangelib\version.py", line 246, in from_response

api_version_from_server = info.get('Version') or build.api_version()


 "Lib\site-packages\exchangelib\version.py", line 102, in api_version

return self.API_VERSION_MAP[self.major_version][self.minor_version]
KeyError: 20

Traceback (most recent call last):

 "<stdin>", line 1, in <module>

 "sympy/solvers/ode.py", line 409, in dsolve
raise NotImplementedError("dsolve: Cannot solve " + str(eq))NotImplementedError: dsolve: Cannot solve D(f(x), x)**2