安装lets encrypt出现这个错误，怎么解决 - 全球主机交流论坛

Downloading packages:
(1/13): libffi-devel-3.0.13-18.el7.x86_64.rpm | 23 kB 00:00:00
(2/13): perl-srpm-macros-1-8.el7.noarch.rpm | 4.6 kB 00:00:00
(3/13): dwz-0.11-3.el7.x86_64.rpm | 99 kB 00:00:00
(4/13): python-backports-1.0-8.el7.x86_64.rpm | 5.8 kB 00:00:00
(5/13): python-backports-ssl_match_hostname-3.4.0.2-4.el7.noarch | 12 kB 00:00:00
(6/13): python-setuptools-0.9.8-7.el7.noarch.rpm | 397 kB 00:00:00
(7/13): python-devel-2.7.5-58.el7.x86_64.rpm | 395 kB 00:00:00
(8/13): python-tools-2.7.5-58.el7.x86_64.rpm | 853 kB 00:00:00
(9/13): python-virtualenv-1.10.1-4.el7.noarch.rpm | 1.2 MB 00:00:00
(10/13): redhat-rpm-config-9.1.0-76.el7.centos.noarch.rpm | 79 kB 00:00:00
(11/13): tix-8.4.3-12.el7.x86_64.rpm | 254 kB 00:00:00
(12/13): tkinter-2.7.5-58.el7.x86_64.rpm | 323 kB 00:00:00
(13/13): python2-pip-8.1.2-5.el7.noarch.rpm | 1.7 MB 00:00:01
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总计 2.5 MB/s | 5.3 MB 00:02
Running transaction check
Running transaction test
Transaction check error:
package augeas-libs-1.4.0-2.el7_4.2.x86_64 is already installed
错误概要
-------------
Could not install OS dependencies. Aborting bootstrap!

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