Ruby RIDK安装：错误：数据库'；mingw32'；无效（无效或损坏的数据库（PGP签名））

我在尝试安装MSYS2/MINGW时遇到此错误：

>ridk install
   1 - MSYS2 base installation
   2 - MSYS2 system update
   3 - MSYS2 and MINGW development toolchain

Which components shall be installed? If unsure press ENTER [1,2,3] 3

MSYS2 seems to be already installed
Install MSYS2 and MINGW development toolchain ...
> pacman -S --needed --noconfirm autoconf autoconf2.13 autogen automake-wrapper automake1.10 automake1.11 automake1.12 automake1.13 automake1.14 automake1.15 automake1.6 automake1.7 automake1.8 automake1.9 diffutils file gawk grep libtool m4 make patch pkg-config sed texinfo texinfo-tex wget mingw-w64-x86_64-binutils mingw-w64-x86_64-crt-git mingw-w64-x86_64-gcc mingw-w64-x86_64-gcc-libs mingw-w64-x86_64-headers-git mingw-w64-x86_64-libmangle-git mingw-w64-x86_64-libwinpthread-git mingw-w64-x86_64-make mingw-w64-x86_64-pkg-config mingw-w64-x86_64-tools-git mingw-w64-x86_64-winpthreads-git
error: mingw32: signature from "David Macek <david.macek.0@gmail.com>" is marginal trust
error: mingw64: signature from "David Macek <david.macek.0@gmail.com>" is marginal trust
error: msys: signature from "David Macek <david.macek.0@gmail.com>" is marginal trust
error: database 'mingw32' is not valid (invalid or corrupted database (PGP signature))
error: database 'mingw64' is not valid (invalid or corrupted database (PGP signature))
error: database 'msys' is not valid (invalid or corrupted database (PGP signature))
Install MSYS2 and MINGW development toolchain failed
Installation failed: pacman failed

>ridk安装
1-MSYS2基座安装
2-MSYS2系统更新
3-MSYS2和MINGW开发工具链
应安装哪些部件？如果不确定，按回车[1,2,3]3
MSYS2似乎已经安装
安装MSYS2和MINGW开发工具链。。。
>pacman-S--需要--不确认autoconf autoconf2.13 autogen automake包装automake1.10 automake1.11 automake1.12 automake1.13 automake1.14 automake1.15 automake1.6 automake1.7 automake1.8 automake1.9 diffutils文件gawk grep libtool m4制作补丁包配置texinfo texinfo texinfo tex wget mingw-w64-x86_64-crt-gitmingw-w64-x86_64-gcc mingw-w64-x86_64-gcc-libs mingw-w64-x86_64-headers-git mingw-w64-x86_64-libmangle-git mingw-w64-x86_64-make mingw-w64-x86_64-pkg-config mingw-w64-x86_64-tools-git-git mingw-w64-x86-x86_64-winpthreads-git
错误：mingw32:来自“David Macek”的签名是边际信任
错误：mingw64:来自“David Macek”的签名是边际信任
错误：msys:来自“David Macek”的签名是边际信任
错误：数据库“mingw32”无效（无效或损坏的数据库（PGP签名））
错误：数据库“mingw64”无效（无效或损坏的数据库（PGP签名））
错误：数据库“msys”无效（无效或损坏的数据库（PGP签名））
安装MSYS2和MINGW开发工具链失败
安装失败：pacman失败

显然

ridk install

只安装MSYS2。他们调换了软件包维护人员，所以钥匙坏了：。Pacman是他们的包管理器（比如

apt-get

，

yum

，

gem

）。我要么有一个旧版本，要么我的旧Ruby 2.4正在安装一个旧版本（版本：“20161025”）。我碰巧吃了巧克力，有一个

msys2

包装，所以我用了

choco upgrade msys2  # this installed it. i did not have it installed via chocolatey
ridk version  # still showed an old version and would not work
pacman -U xz  # xz is like gzip - this gave the errors above
choco uninstall msys2  # this didn't do much
del \msys2  # have to manually delete the directory
choco upgrade msys2  # this installed a recent version
ridk install  # have to install the make and c++ tools, so include choice 3

它安装了49个软件包，现在可以运行了