TypeError: expected dtype object, got 'numpy.dtype[int64]'

Question

I don't know how to fix this issue and was wondering if someone could help me out?

Code: np.array(data['close'].tolist())

After that when I run my code I obtain the following error: TypeError: expected dtype object, got 'numpy.dtype[int64]'

How do I fix that?

Error: Traceback (most recent call last): File "C:\Users\nicol\anaconda3\lib\site-packages\IPython\core\interactiveshell.py", line 3343, in run_code exec(code_obj, self.user_global_ns, self.user_ns) File "", line 10, in model.fit(init_pop) File "C:\Users\nicol\anaconda3\lib\site-packages\tagenalgo\tagenalgo.py", line 310, in fit pop_fit = self._fitness_evaluation(pop) File "C:\Users\nicol\anaconda3\lib\site-packages\tagenalgo\tagenalgo.py", line 246, in _fitness_evaluation fit_vals_lst.append(self._fitness_cal(ind)[0]) –
File "C:\Users\nicol\anaconda3\lib\site-packages\tagenalgo\tagenalgo.py", line 201, in _fitness_cal idc = rsi_signal(self.price, rsi=rsi, buy_sig=buy_sig, sell_sig=sell_sig, error_tol=sig_tol) TypeError: expected dtype object, got 'numpy.dtype[int64]'

data sample: Timestamp, Close

2016-01-04 14:15:00,2.3552 2016-01-04 14:30:00,2.34595 2016-01-04 14:45:00,2.34105 2016-01-04 15:00:00,2.32945