Traceback (most recent call last):


 "/Users/qisc/.pyenv/versions/miniconda3-4.1.11/lib/python3.5/site-packages/superset/viz.py", line 265, in get_payload

df = self.get_df()


 "/Users/qisc/.pyenv/versions/miniconda3-4.1.11/lib/python3.5/site-packages/superset/viz.py", line 109, in get_df

self.results = self.datasource.query(query_obj)


 "/Users/qisc/.pyenv/versions/miniconda3-4.1.11/lib/python3.5/site-packages/superset/connectors/sqla/models.py", line 525, in query

sql = self.get_query_str(engine, qry_start_dttm, **query_obj)


 "/Users/qisc/.pyenv/versions/miniconda3-4.1.11/lib/python3.5/site-packages/superset/connectors/sqla/models.py", line 429, in get_query_str

time_filter = dttm_col.get_time_filter(from_dttm, to_dttm)


 "/Users/qisc/.pyenv/versions/miniconda3-4.1.11/lib/python3.5/site-packages/superset/connectors/sqla/models.py", line 68, in get_time_filter

col >= text(self.dttm_sql_literal(start_dttm)),


 "/Users/qisc/.pyenv/versions/miniconda3-4.1.11/lib/python3.5/site-packages/superset/connectors/sqla/models.py", line 117, in dttm_sql_literal

self.type, dttm)


 "/Users/qisc/.pyenv/versions/miniconda3-4.1.11/lib/python3.5/site-packages/superset/db_engine_specs.py", line 239, in convert_dttm

if target_type.upper() in ('DATETIME', 'DATE'):
AttributeError: 'NoneType' object has no attribute 'upper'

Traceback (most recent call last):


 "train_mnist.py", line 116, in <module>

main()


 "train_mnist.py", line 113, in main

trainer.run()


 "/home/mattya/.pyenv/versions/anaconda3-4.0.0/lib/python3.5/site-packages/chainer-1.20.0-py3.5-linux-x86_64.egg/chainer/training/trainer.py", line 298, in run

entry.extension(self)


 "/home/mattya/.pyenv/versions/anaconda3-4.0.0/lib/python3.5/site-packages/chainer-1.20.0-py3.5-linux-x86_64.egg/chainer/training/extensions/_snapshot.py", line 78, in snapshot

_snapshot_object(trainer, trainer, filename.format(trainer), savefun)


 "/home/mattya/.pyenv/versions/anaconda3-4.0.0/lib/python3.5/site-packages/chainer-1.20.0-py3.5-linux-x86_64.egg/chainer/training/extensions/_snapshot.py", line 88, in _snapshot_object

savefun(tmppath, target)


 "/home/mattya/.pyenv/versions/anaconda3-4.0.0/lib/python3.5/site-packages/chainer-1.20.0-py3.5-linux-x86_64.egg/chainer/serializers/npz.py", line 67, in save_npz

s.save(obj)


 "/home/mattya/.pyenv/versions/anaconda3-4.0.0/lib/python3.5/site-packages/chainer-1.20.0-py3.5-linux-x86_64.egg/chainer/serializer.py", line 69, in save

obj.serialize(self)


 "/home/mattya/.pyenv/versions/anaconda3-4.0.0/lib/python3.5/site-packages/chainer-1.20.0-py3.5-linux-x86_64.egg/chainer/training/trainer.py", line 310, in serialize

self.updater.serialize(serializer['updater'])


 "/home/mattya/.pyenv/versions/anaconda3-4.0.0/lib/python3.5/site-packages/chainer-1.20.0-py3.5-linux-x86_64.egg/chainer/training/updater.py", line 201, in serialize

optimizer.target.serialize(serializer['model:' + name])


 "/home/mattya/.pyenv/versions/anaconda3-4.0.0/lib/python3.5/site-packages/chainer-1.20.0-py3.5-linux-x86_64.egg/chainer/link.py", line 687, in serialize

d[name].serialize(serializer[name])


 "/home/mattya/.pyenv/versions/anaconda3-4.0.0/lib/python3.5/site-packages/chainer-1.20.0-py3.5-linux-x86_64.egg/chainer/link.py", line 687, in serialize

d[name].serialize(serializer[name])


 "/home/mattya/.pyenv/versions/anaconda3-4.0.0/lib/python3.5/site-packages/chainer-1.20.0-py3.5-linux-x86_64.egg/chainer/link.py", line 488, in serialize

self.add_param(name, initialized_value.shape)
AttributeError: 'NoneType' object has no attribute 'shape'
