npm create pattern-lab with edition twig throws an error and hangs

[joville]

I am using Pattern Lab Node v.5.13.1 on Mac, with Node v14.9 (also in earlier node version vom v12 on), using the Twig Edition.

Expected Behavior

Clean install of the pattern-lab twig demo in any directory

Actual Behavior

Installation of the twig edition throws actually an error and hangs.

⠦ ⊙ patternlab → Installing edition: @pattern-lab/edition-twig(node:66426) UnhandledPromiseRejectionWarning: Error: Cannot find module '@pattern-lab/edition-twig/package.json'
Require stack:
- /Users/Joville/.npm/_npx/66125/lib/node_modules/create-pattern-lab/node_modules/@pattern-lab/core/src/lib/resolver.js
- /Users/Joville/.npm/_npx/66125/lib/node_modules/create-pattern-lab/node_modules/@pattern-lab/cli/bin/utils.js
- /Users/Joville/.npm/_npx/66125/lib/node_modules/create-pattern-lab/node_modules/@pattern-lab/cli/bin/ask.js
- /Users/Joville/.npm/_npx/66125/lib/node_modules/create-pattern-lab/node_modules/@pattern-lab/cli/bin/cli-actions/init.js
- /Users/Joville/.npm/_npx/66125/lib/node_modules/create-pattern-lab/index.js
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:892:15)
    at Function.resolve (internal/modules/cjs/helpers.js:94:19)
    at resolveFileInPackage (/Users/Joville/.npm/_npx/66125/lib/node_modules/create-pattern-lab/node_modules/@pattern-lab/core/src/lib/resolver.js:10:18)
    at resolvePackageFolder (/Users/Joville/.npm/_npx/66125/lib/node_modules/create-pattern-lab/node_modules/@pattern-lab/core/src/lib/resolver.js:18:23)
    at resolveDirInPackage (/Users/Joville/.npm/_npx/66125/lib/node_modules/create-pattern-lab/node_modules/@pattern-lab/core/src/lib/resolver.js:26:20)
    at /Users/Joville/.npm/_npx/66125/lib/node_modules/create-pattern-lab/node_modules/@pattern-lab/cli/bin/install-edition.js:38:7
    at Generator.next (<anonymous>)
    at spwn (/Users/Joville/.npm/_npx/66125/lib/node_modules/create-pattern-lab/node_modules/@pattern-lab/cli/bin/utils.js:75:25)
    at processTicksAndRejections (internal/process/task_queues.js:93:5)
(Use `node --trace-warnings ...` to show where the warning was created)
(node:66426) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)
(node:66426) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.
⠦ ⊙ patternlab → Installing edition: @pattern-lab/edition-twig

Steps to Reproduce

1. npm create pattern-lab
2. ? Please specify a directory for your Pattern Lab project. ./
3. ? What templating language do you want to use with Pattern Lab? Twig (PHP)
4. ? What initial patterns do you want included in your project? Twig (PHP) demo patterns (full demo website and patterns)
5. ? Are you happy with your choices? (Hit enter for YES)? Yes

[ringods]

@joville looking into the issue. Workaround you can use for the time being. Run this from within your new pattern-lab project folder:

$ npm init
$ npm install create-pattern-lab
$ npm create pattern-lab

[jerseycheese]

Reporting in that I also experience this in Node v12.18.3, in Pattern Lab Node v.5.13.1 on Mac.

[megclaypool]

I'm also experiencing this using Node v10.21.0 and v12.18.2 on macOS 10.15.6

The workaround allowed me to install the node version of pattern lab. However, I'm running into further problems which may or may not be related:

I selected the PHP twig version and elected to install the sample patterns. However, when I npm run build and then npm run serve I get an empty lab with no visible patterns. I checked the patternlab-config.json file, and it sure looks like the patterns are in the right place in the source folder... There are no error messages, just no patterns 🙁

[Leftere]

I'm on node --version v12.18.3, on windows 10 and I get the same problem,

(Use node --trace-warnings ... to show where the warning was created)
(node:66426) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag --unhandled-rejections=strict (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)
(node:66426) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.
⠦ ⊙ patternlab → Installing edition: @pattern-lab/edition-twig

[mark-casias]

I am getting the same issue, in a few different versions of node (nvm versions v14.0.0, v13.9.0, v10.22.1, v10.9.0)

⠦ ⊙ patternlab → Installing edition: @pattern-lab/edition-twig(node:51441) UnhandledPromiseRejectionWarning: Error: Cannot find module '@pattern-lab/edition-twig/package.json'
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:581:15)
    at Function.resolve (internal/modules/cjs/helpers.js:30:19)
    at resolveFileInPackage (/Users/mark/.npm/_npx/51279/lib/node_modules/create-pattern-lab/node_modules/@pattern-lab/core/src/lib/resolver.js:10:18)
    at resolvePackageFolder (/Users/mark/.npm/_npx/51279/lib/node_modules/create-pattern-lab/node_modules/@pattern-lab/core/src/lib/resolver.js:18:23)
    at resolveDirInPackage (/Users/mark/.npm/_npx/51279/lib/node_modules/create-pattern-lab/node_modules/@pattern-lab/core/src/lib/resolver.js:26:20)
    at /Users/mark/.npm/_npx/51279/lib/node_modules/create-pattern-lab/node_modules/@pattern-lab/cli/bin/install-edition.js:38:7
    at Generator.next (<anonymous>)
    at spwn (/Users/mark/.npm/_npx/51279/lib/node_modules/create-pattern-lab/node_modules/@pattern-lab/cli/bin/utils.js:75:25)
    at process._tickCallback (internal/process/next_tick.js:68:7)
(node:51441) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1)
(node:51441) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.
⠦ ⊙ patternlab → Installing edition: @pattern-lab/edition-twig```

[mark-casias]

I have even tried manually installing @pattern-lab/edition-twig and @pattern-lab/engine-twig-php to no avail

[mark-casias]

I recant my previous statements. I wonder if there was just a tubes glitch because I went back and tried it today with no error on v12.10.0 and v13.9.0 with the following

$ mkdir fred
$ cd fred
$ npm init
$ npm install create-pattern-lab
$ npm create pattern-lab