Comment 92 for bug 1217959

I just hit this bug. I recently put in a symlink for my ~/.cache directory. My deja dup version is as follows:

~/.cache$ apt list --installed | grep deja

WARNING: apt does not have a stable CLI interface. Use with caution in scripts.

deja-dup/xenial-updates,now 34.2-0ubuntu1.1 amd64 [installed]
deja-dup-backend-gvfs/xenial-updates,xenial-updates,now 34.2-0ubuntu1.1 all [installed,automatic]
deja-dup-backend-s3/xenial-updates,xenial-updates,now 34.2-0ubuntu1.1 all [installed]
fonts-dejavu/xenial,xenial,now 2.35-1 all [installed,automatic]
fonts-dejavu-core/xenial,xenial,now 2.35-1 all [installed]
fonts-dejavu-extra/xenial,xenial,now 2.35-1 all [installed,automatic]