sudo dpkg --configure -a不起作用。我尝试了许多已解决的答案，但它们都导致以下错误消息：
plymouth-theme-ubuntu-text depends on plymouth (= 0.9.2-3ubuntu13.2); however:
Package plymouth is not configured yet.
dpkg: error processing package plymouth-theme-ubuntu-text (-- configure):
dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of pulseaudio-module-bluetooth:
pulseaudio-module-bluetooth depends on bluez (>= 5.23); however:
Package bluez is not configured yet.
dpkg: error processing package pulseaudio-module-bluetooth (--configure):
dependency problems - leaving unconfigured
Processing triggers for initramfs-tools (0.122ubuntu8.8) ...
update-initramfs: Generating /boot/initrd.img-4.4.0-97-generic
Errors were encountered while processing:
apache2
plymouth
lm-sensors
unattended-upgrades
bluez
plymouth-theme-ubuntu-logo
plymouth-label
plymouth-theme-ubuntu-text
pulseaudio-module-bluetooth