KeyError: 'time' Exception during gf.tree() (with gf built from HPCToolkit database) about hatchet HOT 5 CLOSED

> pip show --files hatchet
Name: hatchet
Version: 1.1.0
Summary: A Python library for analyzing hierarchical performance data
Home-page: https://github.com/LLNL/hatchet
Author: Abhinav Bhatele
Author-email: [email protected]
License: MIT
Location: /home/ian/.local/opt/anaconda3/lib/python3.7/site-packages
Requires: pandas, matplotlib, numpy, PyYAML, pydot
Required-by: 
Files:
  hatchet-1.1.0.dist-info/INSTALLER
  hatchet-1.1.0.dist-info/METADATA
  hatchet-1.1.0.dist-info/RECORD
  hatchet-1.1.0.dist-info/WHEEL
  hatchet-1.1.0.dist-info/top_level.txt
  hatchet/__init__.py
  hatchet/__pycache__/__init__.cpython-37.pyc
  hatchet/__pycache__/frame.cpython-37.pyc
  hatchet/__pycache__/graph.cpython-37.pyc
  hatchet/__pycache__/graphframe.cpython-37.pyc
  hatchet/__pycache__/node.cpython-37.pyc
  hatchet/external/__init__.py
  hatchet/external/__pycache__/__init__.cpython-37.pyc
  hatchet/external/__pycache__/printtree.cpython-37.pyc
  hatchet/external/printtree.py
  hatchet/frame.py
  hatchet/graph.py
  hatchet/graphframe.py
  hatchet/node.py
  hatchet/readers/__init__.py
  hatchet/readers/__pycache__/__init__.cpython-37.pyc
  hatchet/readers/__pycache__/caliper_reader.cpython-37.pyc
  hatchet/readers/__pycache__/gprof_dot_reader.cpython-37.pyc
  hatchet/readers/__pycache__/hpctoolkit_reader.cpython-37.pyc
  hatchet/readers/caliper_reader.py
  hatchet/readers/gprof_dot_reader.py
  hatchet/readers/hpctoolkit_reader.py
  hatchet/tests/__pycache__/caliper.cpython-37.pyc
  hatchet/tests/__pycache__/callgrind.cpython-37.pyc
  hatchet/tests/__pycache__/conftest.cpython-37.pyc
  hatchet/tests/__pycache__/dataframe_ops.cpython-37.pyc
  hatchet/tests/__pycache__/executable.cpython-37.pyc
  hatchet/tests/__pycache__/frame.cpython-37.pyc
  hatchet/tests/__pycache__/graph.cpython-37.pyc
  hatchet/tests/__pycache__/graph_literal.cpython-37.pyc
  hatchet/tests/__pycache__/graph_ops.cpython-37.pyc
  hatchet/tests/__pycache__/graphframe.cpython-37.pyc
  hatchet/tests/__pycache__/hpctoolkit.cpython-37.pyc
  hatchet/tests/__pycache__/node.cpython-37.pyc
  hatchet/tests/caliper.py
  hatchet/tests/callgrind.py
  hatchet/tests/conftest.py
  hatchet/tests/dataframe_ops.py
  hatchet/tests/executable.py
  hatchet/tests/frame.py
  hatchet/tests/graph.py
  hatchet/tests/graph_literal.py
  hatchet/tests/graph_ops.py
  hatchet/tests/graphframe.py
  hatchet/tests/hpctoolkit.py
  hatchet/tests/node.py
  hatchet/util/__init__.py
  hatchet/util/__pycache__/__init__.cpython-37.pyc
  hatchet/util/__pycache__/config.cpython-37.pyc
  hatchet/util/__pycache__/dot.cpython-37.pyc
  hatchet/util/__pycache__/executable.cpython-37.pyc
  hatchet/util/__pycache__/timer.cpython-37.pyc
  hatchet/util/config.py
  hatchet/util/dot.py
  hatchet/util/executable.py
  hatchet/util/timer.py

> git log HEAD~1..HEAD
commit f723ff8406876894b298e1d86b5d9aef4b70dc9d (HEAD -> develop, origin/develop, origin/HEAD)
Author: Ian Lumsden <[email protected]>
Date:   Tue Jun 16 13:02:53 2020 -0400

    Fixes the bug with squash (#176)
    
    * Adds a test for merging matching sub-DAGs
    * Changes the "val" variable to "curr_min" and adds comments.

> conda list | grep hatchet
hatchet                   1.1.0                    pypi_0    pypi