Log time: 2019-08-27 10:08:13.715441
Starting pkgProblemResolver with broken count: 2
Starting 2 pkgProblemResolver with broken count: 2
Investigating (0) libedata-book-1.2-25:amd64 < 3.32.2-2 @ii mK Ib >
Broken libedata-book-1.2-25:amd64 Depends on libebackend-1.2-10:amd64 < 3.32.2-2 -> 3.33.4-1 @ii umU > (= 3.32.2-2)
  Considering libebackend-1.2-10:amd64 8 as a solution to libedata-book-1.2-25:amd64 1
  Removing libedata-book-1.2-25:amd64 rather than change libebackend-1.2-10:amd64
Investigating (0) libebook-1.2-19:amd64 < 3.32.2-2 @ii mK Ib >
Broken libebook-1.2-19:amd64 Depends on libedata-book-1.2-25:amd64 < 3.32.2-2 @ii mR > (= 3.32.2-2)
  Considering libedata-book-1.2-25:amd64 1 as a solution to libebook-1.2-19:amd64 0
  Removing libebook-1.2-19:amd64 rather than change libedata-book-1.2-25:amd64
Investigating (0) libedata-cal-1.2-29:amd64 < 3.32.2-2 @ii mK Ib >
Broken libedata-cal-1.2-29:amd64 Depends on libebackend-1.2-10:amd64 < 3.32.2-2 -> 3.33.4-1 @ii umU > (= 3.32.2-2)
  Considering libebackend-1.2-10:amd64 8 as a solution to libedata-cal-1.2-29:amd64 0
  Removing libedata-cal-1.2-29:amd64 rather than change libebackend-1.2-10:amd64
Done
ERROR:root:not handled exception:
Traceback (most recent call last):

  File "/usr/lib/ubuntu-release-upgrader/do-partial-upgrade", line 114, in <module>
    controller.doPartialUpgrade()

  File "/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeController.py", line 2095, in doPartialUpgrade
    if not self.askDistUpgrade():

  File "/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeController.py", line 1154, in askDistUpgrade
    changes = self.calcDistUpgrade()

  File "/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeController.py", line 1117, in calcDistUpgrade
    if not self.cache.distUpgrade(self._view, self.serverMode, self._partialUpgrade):

  File "/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeCache.py", line 241, in wrapper
    res = f(*args, **kwargs)

  File "/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeCache.py", line 609, in distUpgrade
    self.keep_installed_rule()

  File "/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeCache.py", line 463, in keep_installed_rule
    and pkg.marked_delete and pkg.section == section):

AttributeError: 'Package' object has no attribute 'section'

Traceback (most recent call last):
  File "/usr/lib/ubuntu-release-upgrader/do-partial-upgrade", line 114, in <module>
    controller.doPartialUpgrade()
  File "/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeController.py", line 2095, in doPartialUpgrade
    if not self.askDistUpgrade():
  File "/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeController.py", line 1154, in askDistUpgrade
    changes = self.calcDistUpgrade()
  File "/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeController.py", line 1117, in calcDistUpgrade
    if not self.cache.distUpgrade(self._view, self.serverMode, self._partialUpgrade):
  File "/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeCache.py", line 241, in wrapper
    res = f(*args, **kwargs)
  File "/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeCache.py", line 609, in distUpgrade
    self.keep_installed_rule()
  File "/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeCache.py", line 463, in keep_installed_rule
    and pkg.marked_delete and pkg.section == section):
AttributeError: 'Package' object has no attribute 'section'
Error in sys.excepthook:
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/problem_report.py", line 477, in add_to_existing
    self.write(f)
  File "/usr/lib/python3/dist-packages/problem_report.py", line 432, in write
    crc = zlib.crc32(block, crc)
TypeError: a bytes-like object is required, not 'str'

Original exception was:
Traceback (most recent call last):
  File "/usr/lib/ubuntu-release-upgrader/do-partial-upgrade", line 114, in <module>
    controller.doPartialUpgrade()
  File "/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeController.py", line 2095, in doPartialUpgrade
    if not self.askDistUpgrade():
  File "/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeController.py", line 1154, in askDistUpgrade
    changes = self.calcDistUpgrade()
  File "/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeController.py", line 1117, in calcDistUpgrade
    if not self.cache.distUpgrade(self._view, self.serverMode, self._partialUpgrade):
  File "/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeCache.py", line 241, in wrapper
    res = f(*args, **kwargs)
  File "/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeCache.py", line 609, in distUpgrade
    self.keep_installed_rule()
  File "/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeCache.py", line 463, in keep_installed_rule
    and pkg.marked_delete and pkg.section == section):
AttributeError: 'Package' object has no attribute 'section'