Warnings after package updates

[topecongiro]

Description

spacemacs emits warnings after updating packages.

Reproduction guide 🪲

• Start Emacs
• Update Packages

Observed behaviour: 👀 💔
spacemacs emits the following warnings:

Error (use-package): pdf-tools :config: No executable `epdfinfo' found
Error (use-package): slime :config: Cannot open load file: No such file or directory, slime-company

Expected behaviour: ❤️ 😄
spacemacs should complete pacakges update without emitting error.

System Info 💻

• OS: gnu/linux
• Emacs: 25.2.1
• Spacemacs: 0.200.9
• Spacemacs branch: master (rev. 8e1af14)
• Graphic display: t
• Distribution: spacemacs
• Editing style: vim
• Completion: ivy
• Layers:

(ruby c-c   common-lisp go html latex python rust shell themes-megapack yaml ivy auto-completion emacs-lisp git gtags markdown org pdf-tools
      (shell :variables shell-default-height 30 shell-default-position 'bottom shell-default-shell 'eshell)
      syntax-checking version-control)

• System configuration features: XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS GCONF GSETTINGS NOTIFY ACL GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS GTK3 X11 MODULES

[LdBeth]

Sometimes use-packages throws errors because some require dependencies are not installed before the congratulations are called. As specific to your problem, slime-company wasn't installed before the configuration of silme, which calls a function defined in slime-company. Who's fault? Well, some layers do not optimize the order of loading packages and some error messages will be thrown only when the packages are updated. However, when the layers do such a optimize to have a "smooth" update, Spacemacs may get slowed down.

Thou I know it's annoying, it is not a big deal as long as those errors are not reproduced after restart Emacs. And this problem might not be addressed in short run.

I wish this explains to you about why that thing happened.

Consider to add an "as expected" label to this issue.

[topecongiro]

@LdBeth Thank you for your explanation!