Vue Design System doesn't start, errors with files

[caseytrombley]

Unable to run this repo, after npm install and trying to run npm start there are errors that are not fixable:

design_system $ npm start

[email protected] start /Users/caseytrombley/Development/algaecal/design_system
npm-run-all --parallel styleguide theo:onchange theo dev

[email protected] theo /Users/caseytrombley/Development/algaecal/design_system
theo ./src/tokens/tokens.yml --transform web --format map.scss,scss,raw.json,json --dest ./src/assets/tokens

[email protected] theo:onchange /Users/caseytrombley/Development/algaecal/design_system
onchange "./src/tokens/*.yml" -- npm run theo

[email protected] styleguide /Users/caseytrombley/Development/algaecal/design_system
vue-styleguidist server --open --config ./config/docs.config.js

[email protected] dev /Users/caseytrombley/Development/algaecal/design_system
webpack-dev-server --inline --config ./build/webpack.dev.conf.js

internal/modules/cjs/loader.js:638
throw err;
^

Error: Cannot find module 'optimist'
at Function.Module._resolveFilename (internal/modules/cjs/loader.js:636:15)
at Function.Module._load (internal/modules/cjs/loader.js:562:25)
at Module.require (internal/modules/cjs/loader.js:692:17)
at require (internal/modules/cjs/helpers.js:25:18)
at Object. (/Users/caseytrombley/Development/algaecal/design_system/node_modules/theo/bin/theo.js:5:14)
at Module._compile (internal/modules/cjs/loader.js:778:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:789:10)
at Module.load (internal/modules/cjs/loader.js:653:32)
at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
at Function.Module._load (internal/modules/cjs/loader.js:585:3)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] theo: theo ./src/tokens/tokens.yml --transform web --format map.scss,scss,raw.json,json --dest ./src/assets/tokens
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] theo 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! /Users/caseytrombley/.npm/_logs/2020-05-01T15_32_55_518Z-debug.log
ERROR: "theo" exited with 1.
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] start: npm-run-all --parallel styleguide theo:onchange theo dev
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] start script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

[andersonAlmeida]

I am having the same problem

[elevatebart]

it is an error in https://github.com/salesforce-ux/theo
As a work around you can install optimist yourself.

[andersonAlmeida]

It worked. Thanks.