nightscout_calibrations gives traceback with Dexcom G4 connected to USB

[PieterGit]

When I try to get the calibartions in openaps it fails:

pi@pi3:~/oa-cgm-loop $ openaps use cgm nightscout_calibrations 1
Traceback (most recent call last):
  File "/usr/local/bin/openaps-use", line 4, in <module>
    __import__('pkg_resources').run_script('openaps==0.2.0-dev', 'openaps-use')
  File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 534, in run_script
    self.require(requires)[0].run_script(script_name, ns)
  File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 1438, in run_script
    execfile(script_filename, namespace, namespace)
  File "/usr/local/lib/python2.7/dist-packages/openaps-0.2.0_dev-py2.7.egg/EGG-INFO/scripts/openaps-use", line 63, in <module>
    app( )
  File "/usr/local/lib/python2.7/dist-packages/openaps-0.2.0_dev-py2.7.egg/openaps/cli/__init__.py", line 51, in __call__
    self.run(self.args)
  File "/usr/local/lib/python2.7/dist-packages/openaps-0.2.0_dev-py2.7.egg/EGG-INFO/scripts/openaps-use", line 57, in run
    output = app(args, self)
  File "/usr/local/lib/python2.7/dist-packages/openaps-0.2.0_dev-py2.7.egg/openaps/uses/__init__.py", line 92, in __call__
    return self.method.selected(args)(args, app)
  File "/usr/local/lib/python2.7/dist-packages/openaps-0.2.0_dev-py2.7.egg/openaps/uses/__init__.py", line 31, in __call__
    return self.method(args, app)
  File "/usr/local/lib/python2.7/dist-packages/openaps-0.2.0_dev-py2.7.egg/openaps/uses/use.py", line 45, in __call__
    output = self.main(args, app)
  File "/usr/local/lib/python2.7/dist-packages/openaps-0.2.0_dev-py2.7.egg/openaps/vendors/dexcom.py", line 830, in main
    results = super(iter_calibrations, self).main(args, app)
  File "/usr/local/lib/python2.7/dist-packages/openaps-0.2.0_dev-py2.7.egg/openaps/vendors/dexcom.py", line 420, in main
    for item in candidates:
  File "/usr/local/lib/python2.7/dist-packages/dexcom_reader/readdata.py", line 301, in iter_records
    records = list(self.ReadDatabasePage(record_type, x))
  File "/usr/local/lib/python2.7/dist-packages/dexcom_reader/readdata.py", line 267, in GenericRecordYielder
    yield record_type.Create(data, x)
  File "/usr/local/lib/python2.7/dist-packages/dexcom_reader/database_records.py", line 158, in Create
    return cls(unpacked_data, raw_data)
  File "/usr/local/lib/python2.7/dist-packages/dexcom_reader/database_records.py", line 180, in __init__
    self.check_crc()
  File "/usr/local/lib/python2.7/dist-packages/dexcom_reader/database_records.py", line 47, in check_crc
    raise constants.CrcError('Could not parse %s' % self.__class__.__name__)
dexcom_reader.constants.CrcError: Could not parse Calibration

Gettting calibatrions from the same Dexcom works fine with the Android Uploader.

[jbwittmer]

I have no idea how to fix it but am experiencing the same error. Using a Dexcom G4 (pediatric) US model with Raspberry Pi 3.