使用 Deja Dup 备份到外部驱动器失败，以前它工作正常。上次备份是 43 天前。当我尝试备份时，Deja Dup 决定进行完全备份而不是增量备份。在某个时候，它报告备份失败。“因未知错误而失败”，并给出下面的调用堆栈。我试过 3 次，但得到的结果相同。我使用的是 Ubuntu 18.10。
回溯（最内层最后）：
File "/usr/bin/duplicity", line 1555, in <module>
with_tempdir(main)
File "/usr/bin/duplicity", line 1541, in with_tempdir
fn()
File "/usr/bin/duplicity", line 1393, in main
do_backup(action)
File "/usr/bin/duplicity", line 1511, in do_backup
full_backup(col_stats)
File "/usr/bin/duplicity", line 572, in full_backup
globals.backend)
File "/usr/bin/duplicity", line 454, in write_multivol
(tdp, dest_filename, vol_num)))
File "/usr/lib/python2.7/dist-packages/duplicity/asyncscheduler.py", line 146, in schedule_task
return self.__run_synchronously(fn, params)
File "/usr/lib/python2.7/dist-packages/duplicity/asyncscheduler.py", line 172, in __run_synchronously
ret = fn(*params)
File "/usr/bin/duplicity", line 453, in <lambda>
vol_num: put(tdp, dest_filename, vol_num),
File "/usr/bin/duplicity", line 342, in put
backend.put(tdp, dest_filename)
File "/usr/lib/python2.7/dist-packages/duplicity/backend.py", line 395, in inner_retry
% (n, e.__class__.__name__, util.uexc(e)))
File "/usr/lib/python2.7/dist-packages/duplicity/util.py", line 79, in uexc
return ufn(unicode(e).encode('utf-8'))
UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 37: ordinal not in range(128)