TableauException (999): Unknown error -- during creating hyper extract.

[Walkusz]

Hi,
I tried to use the library to create a hyper extract using tableausdk but get Unknown error.
This happens when I use Extract method.
I run it on Python 3.7.3 and Extract API 2.0

I tried also different path combinations but it doesn't seem to matter.
Also i tried to use pandleau and pantab but the outcome is the same as it is just using this library the same way I do.

Code:

import tableausdk.HyperExtract as tde
tde.Extract('test.hyper')

Traceback (most recent call last):
  File "<input>", line 1, in <module>
  File "C:\Program Files\Python37\lib\site-packages\tableausdk\HyperExtract.py", line 594, in __init__
    raise Exceptions.TableauException(ret, Exceptions.GetLastErrorMessage())
tableausdk.Exceptions.TableauException: TableauException (999): Unknown error