Ubuntu14.04安装Caffe依赖包时遇dpkg错误求助

API 探路者

2026-5-19

Fixing dpkg Error with xmail Package When Installing Caffe on Ubuntu 14.04

Hey there, let's figure out how to fix this dpkg error you're running into while setting up Caffe dependencies on Ubuntu 14.04. The error about xmail being stuck in a broken configuration state is usually a leftover issue from a previous interrupted installation or corrupted package files, not directly related to the Caffe dependencies you're trying to install.

Common Causes

The xmail package wasn't fully configured during a past installation (maybe due to a system crash, forced command termination, or missing dependencies).
Corrupted configuration files or incomplete package files for xmail have left dpkg in an inconsistent state.

Step-by-Step Solutions

Reconfigure all pending dpkg packages
This command tells dpkg to finish configuring any packages that were left in an incomplete state:
```
sudo dpkg --configure -a
```
Run this first—it often fixes the issue automatically by letting dpkg complete the xmail setup process.
Force a reinstall of the xmail package
If reconfiguring doesn't work, try downloading and reinstalling xmail to replace any corrupted files:
```
sudo apt-get install --reinstall xmail
```
This will refresh the package files and attempt to configure it again properly.
Purge the xmail package (if you don't need it)
If you don't use xmail at all, you can completely remove it along with its configuration files to clear up the dpkg state:
```
sudo apt-get remove --purge xmail
```
This should resolve the broken package block entirely.
Retry your Caffe dependency installation
Once the dpkg issue is fixed, go back and run your original command to install Caffe's dependencies:
```
sudo apt-get install libprotobuf-dev libleveldb-dev libsnappy-dev libopencv-dev libhdf5-serial-dev protobuf-compiler
```