Centos7.6 yum安裝軟體報錯：擷取 GPG 密鑰失敗:[Errno 14]

yum -y install vim

執行時報錯！！！

Transaction Summary

Install 1 Package (+30 Dependent packages)

Total size: 18 M

Installed size: 60 M

Downloading packages:

warning: /var/cache/yum/x86_64/7/base/packages/perl-HTTP-Tiny-0.033-3.el7.noarch.rpm: Header V3 RSA/SHA256 Signature, key ID f4a80eb5: NOKEY

Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KE-CentOS-7

GPG key retrieval failed: [Errno 14] curl#37 - “Couldn’t open file /etc/pki/rpm-gpg/RPM-GPG-KE-CentOS-7”

網上搜尋嘗試了很多辦法，更新密匙，修改檔案，都沒有效果，實際能用是是下面的方法。

解決方案是:

rpm --import /etc/pki/rpm-gpg/RPM*