KeyError: 'Entity c does not exist in dfs'

Question

when i try to run this code,

ftr_mtrx_custmr, features_defs = ft.dfs(entities=entities,
                                        relationships=relationship,

                                     target_entity="transactions")
i get such error，
490 featuretools.entityset - WARNING    index session_id   not found in dataframe, creating new integer column
KeyError                                  Traceback (most recent call last)
<ipython-input-82-d467a36d5254> in <module>()
      1 ftr_mtrx_custmr, features_defs = ft.dfs(entities=entities,
      2                                         relationships=relationshp,
----> 3                                         target_entity="transactions")

4 frames
/usr/local/lib/python3.6/dist-packages/featuretools/utils/entry_point.py
in function_wrapper(*args, **kwargs) 38 ep.on_error(error=e, 39 runtime=runtime) ---> 40 raise e 41 42 # send return value
/usr/local/lib/python3.6/dist-packages/featuretools/utils/entry_point.py
in function_wrapper(*args, **kwargs) 30 # call function 31 start = time.time() ---> 32 return_value = func(*args, **kwargs) 33 runtime = time.time() - start 34 except Exception as e:
/usr/local/lib/python3.6/dist-packages/featuretools/synthesis/dfs.py
in dfs(entities, relationships, entityset, target_entity, cutoff_time, instance_ids, agg_primitives, trans_primitives, groupby_trans_primitives, allowed_paths, max_depth, ignore_entities, ignore_variables, primitive_options, seed_features, drop_contains, drop_exact, where_primitives, max_features, cutoff_time_in_index, save_progress, features_only, training_window, approximate, chunk_size, n_jobs, dask_kwargs, verbose, return_variable_types, progress_callback) 225 ''' 226 if not isinstance(entityset, EntitySet): --> 227 entityset = EntitySet("dfs", entities, relationships) 228 229 dfs_object = DeepFeatureSynthesis(target_entity, entityset,
/usr/local/lib/python3.6/dist-packages/featuretools/entityset/entityset.py
in init(self, id, entities, relationships) 83 84 for relationship in relationships: ---> 85 parent_variable = self[relationship[0]][relationship[1]] 86 child_variable = self[relationship[2]][relationship[3]] 87 self.add_relationship(Relationship(parent_variable,
/usr/local/lib/python3.6/dist-packages/featuretools/entityset/entityset.py
in getitem(self, entity_id) 124 return self.entity_dict[entity_id] 125 name = self.id or "entity set" --> 126 raise KeyError('Entity %s does not exist in %s' % (entity_id, name)) 127 128 @property

however, this returned KeyError : 'Entity c does not exist in dfs' any idea what's wrong with my code?

KeyError: 'Entity c does not exist in dfs'

0 Answers0