Zipline: ingest bundle,type error

(zip38) C:\Users\1520084841>zipline ingest -b random_stock_data
Traceback (most recent call last):
File “C:\Users\1520084841\anaconda3\envs\zip38\lib\runpy.py”, line 194, in run_module_as_main
return run_code(code, main_globals, None,
File “C:\Users\1520084841\anaconda3\envs\zip38\lib\runpy.py”, line 87, in run_code
exec(code, run_globals)
File "C:\Users\1520084841\anaconda3\envs\zip38\Scripts\zipline.exe_main
.py", line 4, in
File "C:\Users\1520084841\anaconda3\envs\zip38\lib\site-packages\zipline_init
.py", line 29, in
from .utils.run_algo import run_algorithm
File “C:\Users\1520084841\anaconda3\envs\zip38\lib\site-packages\zipline\utils\run_algo.py”, line 30, in
from zipline.algorithm import TradingAlgorithm, NoBenchmark
File “C:\Users\1520084841\anaconda3\envs\zip38\lib\site-packages\zipline\algorithm.py”, line 52, in
from zipline.finance.blotter import SimulationBlotter
File "C:\Users\1520084841\anaconda3\envs\zip38\lib\site-packages\zipline\finance\blotter_init
.py", line 16, in
from .simulation_blotter import SimulationBlotter
File “C:\Users\1520084841\anaconda3\envs\zip38\lib\site-packages\zipline\finance\blotter\simulation_blotter.py”, line 41, in
class SimulationBlotter(Blotter):
TypeError: ‘str’ object is not callable

SOS!!! Who have solved the same bug that once used zipline to ingest bundle?