（注意：我将把这个作为错误报告发布在 Launchpad 上，但我也在这里发布，因为我找到了一个解决方法，我想分享一下，以防其他人遇到我的情况。）
我最近安装了 Pop_OS 20.04 并从软件中心安装了 Deja Dup（flatpak版本 - 42.0，2020 年 6 月 24 日）。
我有大约 270k 个文件，占用 45GB 空间。我成功设置了 Google Drive 身份验证，并且 Google Drive 上有足够的可用空间（大约 1.5TB 可用空间）。我正在备份所有用户主文件夹.cache，除了“垃圾箱”和其他一些内容之外。
我正在使用密码来加密文件，以防万一。
我第一次尝试时，它上传了大约 50% 的数据，然后它给出了一条错误消息，在错误消息的底部显示“超时”，并在socket.timeout跟踪底部附近提到了一条跟踪，并且with_tempdir在附近顶端。不幸的是我没有保留该错误消息的副本。
第二次尝试时，我正在跟踪网络连接（使用这个简单的网络应用程序：互联网连接监控），并得到error-wifi-timeout - local network is issue与以下 Deja Dup'FileNotUploadedError' is not defined错误一致的结果：
Traceback (innermost last):
File "/app/bin/duplicity", line 104, in <module>
with_tempdir(main)
File "/app/bin/duplicity", line 90, in with_tempdir
fn()
File "/app/lib/python3.7/site-packages/duplicity/dup_main.py", line 1531, in main
do_backup(action)
File "/app/lib/python3.7/site-packages/duplicity/dup_main.py", line 1655, in do_backup
full_backup(col_stats)
File "/app/lib/python3.7/site-packages/duplicity/dup_main.py", line 561, in full_backup
config.backend)
File "/app/lib/python3.7/site-packages/duplicity/dup_main.py", line 442, in write_multivol
(tdp, dest_filename, vol_num)))
File "/app/lib/python3.7/site-packages/duplicity/asyncscheduler.py", line 149, in schedule_task
return self.__run_synchronously(fn, params)
File "/app/lib/python3.7/site-packages/duplicity/asyncscheduler.py", line 175, in __run_synchronously
ret = fn(*params)
File "/app/lib/python3.7/site-packages/duplicity/dup_main.py", line 441, in <lambda>
vol_num: put(tdp, dest_filename, vol_num),
File "/app/lib/python3.7/site-packages/duplicity/dup_main.py", line 320, in put
backend.put(tdp, dest_filename)
File "/app/lib/python3.7/site-packages/duplicity/backend.py", line 393, in inner_retry
code = _get_code_from_exception(self.backend, operation, e)
File "/app/lib/python3.7/site-packages/duplicity/backend.py", line 353, in _get_code_from_exception
return backend._error_code(operation, e) or log.ErrorCode.backend_error
File "/app/lib/python3.7/site-packages/duplicity/backends/pydrivebackend.py", line 236, in _error_code
if isinstance(error, FileNotUploadedError):
NameError: name 'FileNotUploadedError' is not defined
在我的第三次尝试中，我卸载并重新安装了 Deja Dup（仍然是扁平版本），并且在 760 之后.gpg。文件（每个 25mb）已上传（总共 19GB），我收到以下Unable to find the server at www.googleapis.com消息。这次连接跟踪器没有检测到任何网络问题 - 但请注意，这只是一个非常原始的“轮询”，每 2 秒测试一次。也就是说，我有一个非常可靠的连接，始终为我提供 80Mbps 的速度，并且停机时间非常罕见，因此看起来它实际上不太可能与错误的互联网连接有关。
Traceback (innermost last):
File "/app/bin/duplicity", line 104, in <module>
with_tempdir(main)
File "/app/bin/duplicity", line 90, in with_tempdir
fn()
File "/app/lib/python3.7/site-packages/duplicity/dup_main.py", line 1518, in main
action = commandline.ProcessCommandLine(sys.argv[1:])
File "/app/lib/python3.7/site-packages/duplicity/commandline.py", line 1192, in ProcessCommandLine
backup, local_pathname = set_backend(args[0], args[1])
File "/app/lib/python3.7/site-packages/duplicity/commandline.py", line 1063, in set_backend
config.backend = backend.get_backend(bend)
File "/app/lib/python3.7/site-packages/duplicity/backend.py", line 223, in get_backend
obj = get_backend_object(url_string)
File "/app/lib/python3.7/site-packages/duplicity/backend.py", line 209, in get_backend_object
return factory(pu)
File "/app/lib/python3.7/site-packages/duplicity/backends/pydrivebackend.py", line 102, in __init__
file_list = self.drive.ListFile({u'q': u"'Root' in parents and trashed=false"}).GetList()
File "/app/lib/python3.7/site-packages/pydrive/apiattr.py", line 162, in GetList
for x in self:
File "/app/lib/python3.7/site-packages/pydrive/apiattr.py", line 146, in __next__
result = self._GetList()
File "/app/lib/python3.7/site-packages/pydrive/auth.py", line 61, in _decorated
self.auth.Authorize()
File "/app/lib/python3.7/site-packages/pydrive/auth.py", line 523, in Authorize
self.service = build('drive', 'v2', http=self.http)
File "/app/lib/python3.7/site-packages/googleapiclient/_helpers.py", line 134, in positional_wrapper
return wrapped(*args, **kwargs)
File "/app/lib/python3.7/site-packages/googleapiclient/discovery.py", line 225, in build
requested_url, discovery_http, cache_discovery, cache, developerKey
File "/app/lib/python3.7/site-packages/googleapiclient/discovery.py", line 282, in _retrieve_discovery_doc
resp, content = http.request(actual_url)
File "/app/lib/python3.7/site-packages/oauth2client/transport.py", line 175, in new_request
redirections, connection_type)
File "/app/lib/python3.7/site-packages/oauth2client/transport.py", line 282, in request
connection_type=connection_type)
File "/app/lib/python3.7/site-packages/httplib2/__init__.py", line 1976, in request
cachekey,
File "/app/lib/python3.7/site-packages/httplib2/__init__.py", line 1640, in _request
conn, request_uri, method, body, headers
File "/app/lib/python3.7/site-packages/httplib2/__init__.py", line 1553, in _conn_request
raise ServerNotFoundError("Unable to find the server at %s" % conn.host)
httplib2.ServerNotFoundError: Unable to find the server at www.googleapis.com
我重新启动了计算机，并进行了第四次尝试。这次它保存了 534 个 25MB 的文件到 Google Drive，然后给出了与上面完全相同的错误消息。
在我的第五次也是最后一次尝试中，它到达了 171 个文件，然后给出了错误'FileNotUploadedError' is not defined。该错误再次与timeout-wifi-timeout连接监视器的错误同时发生。
答案1
我在这里找到了一个临时解决方法：在 Ubuntu 18.10 中使用备份时出错（Deja Dup）是删除该flatpak版本（或快照，如果您正在使用它）并安装该deb版本（截至撰写本文时为 40.7）。第一次就完美地工作了。这确实意味着您将使用较旧的、不太完善的用户体验，但据我所知，这是唯一显着的区别。