export_to_gcloud: Unhandled exception:
Traceback (most recent call last):
  File "/b/c/cbuild/repository/chromite/bin/export_to_gcloud", line 93, in <module>
    main()
  File "/b/c/cbuild/repository/chromite/bin/export_to_gcloud", line 29, in main
    wrapper.DoMain()
  File "/b/c/cbuild/repository/chromite/scripts/wrapper.py", line 164, in DoMain
    commandline.ScriptWrapperMain(FindTarget)
  File "/b/c/cbuild/repository/chromite/lib/commandline.py", line 837, in ScriptWrapperMain
    ret = target(argv[1:])
  File "/b/c/cbuild/repository/chromite/scripts/export_to_gcloud.py", line 100, in main
    dslib.ChunkedBatchWrite(entities, c)
  File "/b/c/cbuild/repository/chromite/lib/dslib.py", line 59, in ChunkedBatchWrite
    except gcloud.exceptions.BadRequest:
NameError: global name 'gcloud' is not defined

And

Failed in stage PreCQLauncher:

<type 'exceptions.TypeError'>: 'NoneType' object has no attribute '__getitem__'
Traceback (most recent call last):
  File "/b/c/cbuild/repository/chromite/lib/failures_lib.py", line 228, in wrapped_functor
    return functor(*args, **kwargs)
  File "/b/c/cbuild/repository/chromite/cbuildbot/stages/sync_stages.py", line 1893, in PerformStage
    builder_run=self._run)
  File "/b/c/cbuild/repository/chromite/cbuildbot/validation_pool.py", line 501, in AcquirePool
    if pool.AcquireChanges(gerrit_query, ready_fn, change_filter):
  File "/b/c/cbuild/repository/chromite/cbuildbot/validation_pool.py", line 418, in AcquireChanges
    self, self.candidates, self.non_manifest_changes)
  File "/b/c/cbuild/repository/chromite/cbuildbot/stages/sync_stages.py", line 1805, in ProcessChanges
    pool, launchable_progress_map):
  File "/b/c/cbuild/repository/chromite/cbuildbot/stages/sync_stages.py", line 1485, in GetDisjointTransactionsToTest
    max_txn_length=self.MAX_PATCHES_PER_TRYBOT_RUN)
  File "/b/c/cbuild/repository/chromite/cbuildbot/validation_pool.py", line 1963, in CreateDisjointTransactions
    changes, max_txn_length=max_txn_length)
  File "/b/c/cbuild/repository/chromite/cbuildbot/patch_series.py", line 505, in CreateDisjointTransactions
    for change, plan, ex in self.CreateTransactions(changes, limit_to=changes):
  File "/b/c/cbuild/repository/chromite/cbuildbot/patch_series.py", line 474, in CreateTransactions
    plan = self.CreateTransaction(change, limit_to=limit_to)
  File "/b/c/cbuild/repository/chromite/cbuildbot/patch_series.py", line 454, in CreateTransaction
    cq_deps_seen, limit_to=limit_to)
  File "/b/c/cbuild/repository/chromite/cbuildbot/patch_series.py", line 109, in f
    return functor(self, parent, *args, **kwargs)
  File "/b/c/cbuild/repository/chromite/cbuildbot/patch_series.py", line 597, in _AddChangeToPlanWithDeps
    gerrit_deps, limit_to=limit_to)
  File "/b/c/cbuild/repository/chromite/cbuildbot/patch_series.py", line 413, in _LookupUncommittedChanges
    dep_change = self._GetGerritPatch(dep)
  File "/b/c/cbuild/repository/chromite/cbuildbot/patch_series.py", line 360, in _GetGerritPatch
    query_text, must_match=not git.IsSHA1(query_text))
  File "/b/c/cbuild/repository/chromite/lib/gerrit.py", line 181, in QuerySingleRecord
    results = self.Query(change, **query_kwds)
  File "/b/c/cbuild/repository/chromite/lib/gerrit.py", line 287, in Query
    x, self.host) for x in result]
  File "/b/c/cbuild/repository/chromite/lib/patch.py", line 1716, in ConvertQueryResults
    change_id = change['change_id'].split('~')[-1]
TypeError: 'NoneType' object has no attribute '__getitem__'