engine.py exception

[evolutive-app]

Traceback (most recent call last):
File "/opt/conda/bin/pylivetrader", line 10, in
sys.exit(main())
File "/opt/conda/lib/python3.6/site-packages/click/core.py", line 764, in call
return self.main(*args, **kwargs)
File "/opt/conda/lib/python3.6/site-packages/click/core.py", line 717, in main
rv = self.invoke(ctx)
File "/opt/conda/lib/python3.6/site-packages/click/core.py", line 1137, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File "/opt/conda/lib/python3.6/site-packages/click/core.py", line 956, in invoke
return ctx.invoke(self.callback, **ctx.params)
File "/opt/conda/lib/python3.6/site-packages/click/core.py", line 555, in invoke
return callback(*args, **kwargs)
File "/opt/conda/lib/python3.6/site-packages/click/decorators.py", line 17, in new_func
return f(get_current_context(), *args, **kwargs)
File "/opt/conda/lib/python3.6/site-packages/pylivetrader/main.py", line 161, in run
algorithm.run(retry=ctx.retry)
File "/opt/conda/lib/python3.6/site-packages/pylivetrader/algorithm.py", line 271, in run
return self.executor.run(retry=retry)
File "/opt/conda/lib/python3.6/site-packages/pylivetrader/executor/executor.py", line 119, in run
algo.before_trading_start(self.current_data)
File "/opt/conda/lib/python3.6/site-packages/pylivetrader/algorithm.py", line 244, in before_trading_start
self._before_trading_start(self, data)
File "reversion.py", line 97, in before_trading_start
context.my_output = pipeline_output('my_pipeline')
File "/opt/conda/lib/python3.6/site-packages/pylivetrader/misc/api_context.py", line 62, in wrapped
return getattr(algorithm, f.name)(*args, **kwargs)
File "/opt/conda/lib/python3.6/site-packages/pylivetrader/algorithm.py", line 1077, in pipeline_output
output = eng.run_pipeline(self._pipelines[name])
File "/opt/conda/lib/python3.6/site-packages/pipeline_live/engine.py", line 45, in run_pipeline
tz='utc')
File "pandas/tslib.pyx", line 291, in pandas.tslib.Timestamp.new (pandas/tslib.c:9120)
TypeError: new() takes at least 2 positional arguments (1 given)

[garyha]

$ pip install pipdeptree
$ pipdeptree -p pylivetrader

[evolutive-app]

This fixed the issue, thanks!