patternlab-node: Installing Twig Engine on new project causes errors on npm run patternlab build

I am using Patternlab edition-node@1.0.0-alpha.13 on Windows, with Node 9.9.0, using a Vanilla Edition.

Expected Behavior

npm run patternlab build turns .twig files into public twig patterns without error

Actual Behavior

Seems like for each pattern you get: (node:11932) [DEP0013] DeprecationWarning: Calling an asynchronous function without callback is deprecated. and then

{ Error: Command failed: php C:\websites\fail3\node_modules\exec-php\lib\php\cli.php -pC:\Users\RYANBO~1\AppData\Local\Temp\tmp-11932tjn5me1.m9qf.tmp -rC:\Users\RYANBO~1\AppData\Local\Temp\tmp-11932tus7wsp.18ge.tmp
PHP Fatal error:  Uncaught Twig_Error_Loader: The "..\..\..\..\source\_patterns" directory does not exist ("C:\websites\fail3\node_modules\node-twig\php\..\..\..\..\source\_patterns"). in C:\websites\fail3\node_modules\node-twig\php\vendor\twig\twig\lib\Twig\Loader\Filesystem.php:101
Stack trace:
#0 C:\websites\fail3\node_modules\node-twig\php\vendor\twig\twig\lib\Twig\Loader\Filesystem.php(82): Twig_Loader_Filesystem->addPath('..\\..\\..\\..\\sou...', '__main__')
#1 C:\websites\fail3\node_modules\node-twig\php\vendor\twig\twig\lib\Twig\Loader\Filesystem.php(40): Twig_Loader_Filesystem->setPaths(Array)
#2 C:\websites\fail3\node_modules\node-twig\php\Twig.php(80): Twig_Loader_Filesystem->__construct('..\\..\\..\\..\\sou...')
#3 C:\websites\fail3\node_modules\exec-php\lib\php\functions.php(28): render('02-pages\\00-gen...', Array)
#4 C:\websites\fail3\node_modules\exec-php\lib\php\cli.php(14): _exec_php_call_user_function('C:\\websites\\fai...', 'render', Array)
#5 {main}
  thrown in C:\websites\fail3\node_modules\node-twig\php\vendor\twig\twig\lib\Twig\Loader\Filesystem.php on line 101

    at ChildProcess.exithandler (child_process.js:273:12)
    at ChildProcess.emit (events.js:180:13)
    at maybeClose (internal/child_process.js:936:16)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:220:5)
  killed: false,
  code: 255,
  signal: null,
  cmd: 'php C:\\websites\\fail3\\node_modules\\exec-php\\lib\\php\\cli.php -pC:\\Users\\RYANBO~1\\AppData\\Local\\Temp\\tmp-11932tjn5me1.m9qf.tmp -rC:\\Users\\RYANBO~1\\AppData\\Local\\Temp\\tmp-11932tus7wsp.18ge.tmp' }
undefined

sidenote this happens on the initial npm run patternlab build. If you run it after the error, it says patternlab → build: Yay, your Pattern Lab project was successfully built ☺ but the patterns within public still show only the text “undefined”. Example location public/patterns/00-test-00-testpattern/00-test-00-testpattern.markup-only.html

Steps to Reproduce

*In Windows, go to a blank folder via cmd *Run npm init -y && npx @pattern-lab/cli -c patternlab init (this issue works through how you can even do that if you have npx/npm cache issues) *Since the starterkit doesn’t allow you to choose an engine… run npm install @pattern-lab/engine-twig *Edit your package.json and include "patternlab": "patternlab" within the scripts section *Create a twig pattern *Create a folder within source called fonts since the build looks for that. (I may submit another issue around that) *Run npm run patternlab build