想使用 auctex 安装有问题

Spacemacs
,
1 
Errors:
    - 
      An error occurred while installing auctex (error: (file-error http://elpa.emacs-china.org/gnu/auctex-12.2.4.tar Not found))
      
    - 
      An error occurred while installing auctex-latexmk (error: (file-error http://elpa.emacs-china.org/gnu/auctex-12.2.4.tar Not found))
      
    - 
      An error occurred while installing company-auctex (error: (file-error http://elpa.emacs-china.org/gnu/auctex-12.2.4.tar Not found))

和

Failed to verify signature archive-contents.sig:
No public key for 066DAFCB81E42C40 created at 2020-12-25T06:05:02+0800 using RSA
Command output:
gpg: keyblock resource '/c/WINDOWS/system32/e:/spacemacs/emacs26-3/.emacs.d/elpa/gnupg/pubring.kbx': No such file or directory
gpg: Signature made Fri Dec 25 06:05:02 2020    
gpg:                using RSA key C433554766D3DDC64221BFAA066DAFCB81E42C40
gpg: Can't check signature: No public key
2

一般来说这个问题是由于包的签名引起的，想要一个快速的解决方案的话，不妨尝试

M-: (setq package-check-signature nil) RET

临时关闭包的签名检查。

不过这种做法并非最佳方案，可以进一步地从

https://emacs.stackexchange.com/questions/233/how-to-proceed-on-package-el-signature-check-failure

了解。