Traceback (most recent call last):


 "C:\Users\S10500\AppData\Local\Continuum\anaconda3\lib\site-packages\spyder\widgets\ipythonconsole\client.py", line 575, in show_time

elapsed_time = time.monotonic() - self.t0
TypeError: unsupported operand type(s) for -: 'float' and 'NoneType'

Traceback (most recent call last):


 "F:/PyCharm 2018.3/Global_Observer.py", line 42, in <module>

mu, sds, elbo = pm.ADVI()
TypeError: cannot unpack non-iterable ADVI object``
