gifsicle failed to install, theme

[ahillio]

Hi there! Running ddev npm install resulted in the following error and the theme doesn't load any CSS... I'm not sure if the lack of CSS is normal behavior out-of-the-box or if it's a result of this error, but I figured I'd post it here.

> gifsicle@5.1.0 postinstall /var/www/html/web/themes/custom/training_theme/node_modules/gifsicle
> node lib/install.js

  ⚠ Response code 404 (Not Found)
  ⚠ gifsicle pre-build test failed
  ℹ compiling from source
  ✖ Error: Command failed: /bin/sh -c autoreconf -ivf
/bin/sh: 1: autoreconf: not found


    at /var/www/html/web/themes/custom/training_theme/node_modules/execa/index.js:231:11
    at processTicksAndRejections (internal/process/task_queues.js:97:5)
    at async Promise.all (index 0)
npm WARN training_theme@1.0.0 No repository field.
npm WARN training_theme@1.0.0 No license field.
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@2.1.3 (node_modules/watchpack/node_modules/fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@2.1.3: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.2.13 (node_modules/fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.13: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@2.1.3 (node_modules/@pattern-lab/live-server/node_modules/fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@2.1.3: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})

npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! gifsicle@5.1.0 postinstall: `node lib/install.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the gifsicle@5.1.0 postinstall script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /home/alec/.npm/_logs/2020-07-23T01_58_12_599Z-debug.log
Failed to run npm install: exit status 1