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TypeError [ERR_INVALID_ARG_TYPE]: The "file" argument must be of type string. Received null

See original GitHub issue

here was my command:

markdown-pdf report-paper-3.md -o $(uuidgen)

I got this error

node:internal/validators:120
    throw new ERR_INVALID_ARG_TYPE(name, 'string', value);
    ^

TypeError [ERR_INVALID_ARG_TYPE]: The "file" argument must be of type string. Received null
    at new NodeError (node:internal/errors:372:5)
    at validateString (node:internal/validators:120:11)
    at normalizeSpawnArguments (node:child_process:505:3)
    at spawn (node:child_process:693:13)
    at Object.execFile (node:child_process:327:17)
    at WriteStream.<anonymous> (/Users/amills/.nvm/versions/node/v16.15.0/lib/node_modules/markdown-pdf/index.js:117:22)
    at WriteStream.emit (node:events:539:35)
    at finish (node:internal/streams/writable:754:10)
    at finishMaybe (node:internal/streams/writable:739:9)
    at afterWrite (node:internal/streams/writable:504:3) {
  code: 'ERR_INVALID_ARG_TYPE'
}

the error makes no sense to me 😦 😦

Issue Analytics

State:
Created a year ago
Reactions:8
Comments:7

Top GitHub Comments

1reaction

ronaldbosmacommented, Oct 22, 2022

It worked for me after installing phantomjs-prebuilt and passing the path to the phantomjs.exe as the --phantom-path parameter.

Example:

markdown-pdf my-file.md --out my-file.pdf --phantom-path ...\node_modules\phantomjs-prebuilt\lib\phantom\bin\phantomjs.exe

0reactions

lucastheisencommented, Dec 10, 2022

I had to supply both:

OPENSSL_CONF=/etc/ssl markdown-pdf \
  --phantom-path "${NODE_MODULES_DIR}/phantomjs-prebuilt/lib/phantom/bin/phantomjs" \
  --out test.pdf
  README.md

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