dnf升级问题

在 centos 8 上发出命令时dnf upgrade，我收到以下信息：

Error:
 Problem 1: package net-snmp-perl-1:5.8-7.el8.2.x86_64 requires net-snmp-agent-libs(x86-64) = 1:5.8-7.el8.2, but none of the providers can be installed
  - cannot install both net-snmp-agent-libs-1:5.8-10.el8.x86_64 and net-snmp-agent-libs-1:5.8-7.el8.2.x86_64
  - cannot install both net-snmp-agent-libs-1:5.8-7.el8.2.x86_64 and net-snmp-agent-libs-1:5.8-10.el8.x86_64
  - cannot install the best update candidate for package net-snmp-perl-1:5.8-7.el8.2.x86_64
  - cannot install the best update candidate for package net-snmp-agent-libs-1:5.8-7.el8.2.x86_64
 Problem 2: package net-snmp-gui-1:5.8-7.el8.2.x86_64 requires net-snmp-perl(x86-64) = 1:5.8-7.el8.2, but none of the providers can be installed
  - package net-snmp-perl-1:5.8-7.el8.2.x86_64 requires net-snmp-libs(x86-64) = 1:5.8-7.el8.2, but none of the providers can be installed
  - cannot install both net-snmp-libs-1:5.8-10.el8.x86_64 and net-snmp-libs-1:5.8-7.el8.2.x86_64
  - cannot install both net-snmp-libs-1:5.8-7.el8.2.x86_64 and net-snmp-libs-1:5.8-10.el8.x86_64
  - cannot install the best update candidate for package net-snmp-libs-1:5.8-7.el8.2.x86_64
  - cannot install the best update candidate for package net-snmp-gui-1:5.8-7.el8.2.x86_64
 Problem 3: problem with installed package net-snmp-perl-1:5.8-7.el8.2.x86_64
  - package net-snmp-perl-1:5.8-7.el8.2.x86_64 requires net-snmp-agent-libs(x86-64) = 1:5.8-7.el8.2, but none of the providers can be installed
  - cannot install both net-snmp-agent-libs-1:5.8-10.el8.x86_64 and net-snmp-agent-libs-1:5.8-7.el8.2.x86_64
  - cannot install both net-snmp-agent-libs-1:5.8-7.el8.2.x86_64 and net-snmp-agent-libs-1:5.8-10.el8.x86_64
  - package net-snmp-1:5.8-10.el8.x86_64 requires net-snmp-agent-libs(x86-64) = 1:5.8-10.el8, but none of the providers can be installed
  - cannot install the best update candidate for package net-snmp-1:5.8-7.el8.2.x86_64
 Problem 4: problem with installed package net-snmp-gui-1:5.8-7.el8.2.x86_64
  - package net-snmp-gui-1:5.8-7.el8.2.x86_64 requires net-snmp-perl(x86-64) = 1:5.8-7.el8.2, but none of the providers can be installed
  - package net-snmp-perl-1:5.8-7.el8.2.x86_64 requires net-snmp-libs(x86-64) = 1:5.8-7.el8.2, but none of the providers can be installed
  - cannot install both net-snmp-libs-1:5.8-10.el8.x86_64 and net-snmp-libs-1:5.8-7.el8.2.x86_64
  - cannot install both net-snmp-libs-1:5.8-7.el8.2.x86_64 and net-snmp-libs-1:5.8-10.el8.x86_64
  - package net-snmp-utils-1:5.8-10.el8.x86_64 requires net-snmp-libs(x86-64) = 1:5.8-10.el8, but none of the providers can be installed
  - cannot install the best update candidate for package net-snmp-utils-1:5.8-7.el8.2.x86_64
(try to add '--allowerasing' to command line to replace conflicting packages or '--skip-broken' to skip uninstallable packages or '--nobest' to use not only best candidate packages)

关于我可以在无需使用的情况下如何处理此问题的任何线索，--allowerasing并且--skip-broken我正在尝试了解该消息的含义，但不幸的是，我无法确定是哪个包导致了此问题。

我也注意到了这一点：

[root@localhost ~]# yum list installed | grep snmp

Modular dependency problems:

 Problem 1: conflicting requests
  - nothing provides module(perl:5.26) needed by module perl-DBD-MySQL:4.046:8010020191114030811:073fa5fe-0.x86_64
 Problem 2: conflicting requests
  - nothing provides module(perl:5.26) needed by module perl-DBD-SQLite:1.58:8010020191114033549:073fa5fe-0.x86_64
 Problem 3: conflicting requests
  - nothing provides module(perl:5.26) needed by module perl-DBI:1.641:8010020191113222731:16b3ab4d-0.x86_64
net-snmp.x86_64                                    1:5.8-7.el8.2                                     @okay
net-snmp-agent-libs.x86_64                         1:5.8-7.el8.2                                     @okay
net-snmp-gui.x86_64                                1:5.8-7.el8.2                                     @okay
net-snmp-libs.x86_64                               1:5.8-7.el8.2                                     @okay
net-snmp-perl.x86_64                               1:5.8-7.el8.2                                     @okay
net-snmp-utils.x86_64                              1:5.8-7.el8.2                                     @okay
pcp-pmda-snmp.x86_64                               4.3.2-2.el8                                       @AppStream
snmptt.noarch                                      1.4-1.7                                           @@commandline

还有这个：

[root@localhost ~]# rpm -qa | grep snmp
net-snmp-agent-libs-5.8-7.el8.2.x86_64
net-snmp-perl-5.8-7.el8.2.x86_64
net-snmp-utils-5.8-7.el8.2.x86_64
net-snmp-5.8-7.el8.2.x86_64
pcp-pmda-snmp-4.3.2-2.el8.x86_64
snmptt-1.4-1.7.noarch
net-snmp-libs-5.8-7.el8.2.x86_64
net-snmp-gui-5.8-7.el8.2.x86_64

谢谢