I have used the above commands 'conda install -c quantopian/label/ci -c quantopian zipline' for installation of new version of zipline, However, it seems unstable that the following errors still happens. May I ask how could I solve for it ?
[2018-01-30 09:03:53.800340] INFO: Loader: Cache at C:\Users\hthhui/.zipline\data\SPY_benchmark.csv does not have data from 1990-01-02 00:00:00+00:00 to 2018-01-26 00:00:00+00:00.
[2018-01-30 09:03:53.800340] INFO: Loader: Downloading benchmark data for 'SPY' from 1989-12-29 00:00:00+00:00 to 2018-01-26 00:00:00+00:00
Traceback (most recent call last):
File "C:\Users\hthhui\AppData\Local\Continuum\Anaconda3\envs\py362\Scripts\zipline-script.py", line 11, in <module>
load_entry_point('zipline==1.1.1+133.gaa32252f', 'console_scripts', 'zipline')()
File "C:\Users\hthhui\AppData\Local\Continuum\Anaconda3\envs\py362\lib\site-packages\click\core.py", line 722, in __call__
return self.main(*args, **kwargs)
File "C:\Users\hthhui\AppData\Local\Continuum\Anaconda3\envs\py362\lib\site-packages\click\core.py", line 697, in main
rv = self.invoke(ctx)
File "C:\Users\hthhui\AppData\Local\Continuum\Anaconda3\envs\py362\lib\site-packages\click\core.py", line 1066, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File "C:\Users\hthhui\AppData\Local\Continuum\Anaconda3\envs\py362\lib\site-packages\click\core.py", line 895, in invoke
return ctx.invoke(self.callback, **ctx.params)
File "C:\Users\hthhui\AppData\Local\Continuum\Anaconda3\envs\py362\lib\site-packages\click\core.py", line 535, in invoke
return callback(*args, **kwargs)
File "C:\Users\hthhui\AppData\Local\Continuum\Anaconda3\envs\py362\lib\site-packages\zipline\__main__.py", line 97, in _
return f(*args, **kwargs)
File "C:\Users\hthhui\AppData\Local\Continuum\Anaconda3\envs\py362\lib\site-packages\click\decorators.py", line 17, in new_func
return f(get_current_context(), *args, **kwargs)
File "C:\Users\hthhui\AppData\Local\Continuum\Anaconda3\envs\py362\lib\site-packages\zipline\__main__.py", line 240, in run
environ=os.environ,
File "C:\Users\hthhui\AppData\Local\Continuum\Anaconda3\envs\py362\lib\site-packages\zipline\utils\run_algo.py", line 132, in _run
env = TradingEnvironment(asset_db_path=connstr, environ=environ)
File "C:\Users\hthhui\AppData\Local\Continuum\Anaconda3\envs\py362\lib\site-packages\zipline\finance\trading.py", line 99, in __init__
self.bm_symbol,
File "C:\Users\hthhui\AppData\Local\Continuum\Anaconda3\envs\py362\lib\site-packages\zipline\data\loader.py", line 167, in load_market_data
environ,
File "C:\Users\hthhui\AppData\Local\Continuum\Anaconda3\envs\py362\lib\site-packages\zipline\data\loader.py", line 231, in ensure_benchmark_data
last_date,
File "C:\Users\hthhui\AppData\Local\Continuum\Anaconda3\envs\py362\lib\site-packages\zipline\data\benchmarks.py", line 50, in get_benchmark_returns
last_date
File "C:\Users\hthhui\AppData\Local\Continuum\Anaconda3\envs\py362\lib\site-packages\pandas_datareader\data.py", line 105, in DataReader
session=session).read()
File "C:\Users\hthhui\AppData\Local\Continuum\Anaconda3\envs\py362\lib\site-packages\pandas_datareader\base.py", line 207, in read
df = self._read_one_data(self.url, params=self._get_params(self.symbols))
File "C:\Users\hthhui\AppData\Local\Continuum\Anaconda3\envs\py362\lib\site-packages\pandas_datareader\base.py", line 95, in _read_one_data
return self._read_lines(out)
File "C:\Users\hthhui\AppData\Local\Continuum\Anaconda3\envs\py362\lib\site-packages\pandas_datareader\base.py", line 146, in _read_lines
rs = read_csv(out, index_col=0, parse_dates=True, na_values='-')[::-1]
File "C:\Users\hthhui\AppData\Local\Continuum\Anaconda3\envs\py362\lib\site-packages\pandas\io\parsers.py", line 577, in parser_f
return _read(filepath_or_buffer, kwds)
File "C:\Users\hthhui\AppData\Local\Continuum\Anaconda3\envs\py362\lib\site-packages\pandas\io\parsers.py", line 328, in _read
parser = TextFileReader(filepath_or_buffer, **kwds)
File "C:\Users\hthhui\AppData\Local\Continuum\Anaconda3\envs\py362\lib\site-packages\pandas\io\parsers.py", line 660, in __init__
self._make_engine(self.engine)
File "C:\Users\hthhui\AppData\Local\Continuum\Anaconda3\envs\py362\lib\site-packages\pandas\io\parsers.py", line 817, in _make_engine
self._engine = CParserWrapper(self.f, **self.options)
File "C:\Users\hthhui\AppData\Local\Continuum\Anaconda3\envs\py362\lib\site-packages\pandas\io\parsers.py", line 1237, in __init__
self._reader = _parser.TextReader(src, **kwds)
File "pandas\parser.pyx", line 523, in pandas.parser.TextReader.__cinit__ (pandas\parser.c:5214)
pandas.io.common.EmptyDataError: No columns to parse from file