Uncaught (in promise) TypeError: timer.unref is not a function

[Matej Moško]

npm v5.3.0
nodejs v8.2.1
electron v1.7.5

Hello, I was having some problems with your package and after solving some of them I still cannot use the package.
First on require('markpress') the system told me there is some version mismatch with onigurama package (it is indirect dependency of markpress). I have solved it using .npmrc file where I forced onigurama to install for specific electron version.

But it is not the main problem I am facing now. This is my code (data is any of your example md)

const options = {
     layout: 'horizontal',
     theme: 'light',
     autoSplit: true,
     allowHtml: false,
     verbose: false,
     title: 'Optional title for output HTML'
    };
    markpress(data, options).then(({html,md}) => {
      console.log(html);
    });
   }

Unfortunately I get this in console:

Uncaught (in promise) TypeError: timer.unref is not a function
at gcTimer (/home/gnaag/Programy/turban-player/node_modules/property-ttl/index.js:44:11)
at Grammar.get [as initialRule] (/home/gnaag/Programy/turban-player/node_modules/property-ttl/index.js:15:7)
at Grammar.module.exports.Grammar.getInitialRule (/home/gnaag/Programy/turban-player/node_modules/first-mate/lib/grammar.js:256:18)
at Grammar.module.exports.Grammar.tokenizeLine (/home/gnaag/Programy/turban-player/node_modules/first-mate/lib/grammar.js:119:28)
at Grammar.module.exports.Grammar.tokenizeLines (/home/gnaag/Programy/turban-player/node_modules/first-mate/lib/grammar.js:79:21)
at Highlights.module.exports.Highlights._highlightCommon (/home/gnaag/Programy/turban-player/node_modules/highlights/lib/highlights.js:187:28)
at Highlights.module.exports.Highlights.highlightSync (/home/gnaag/Programy/turban-player/node_modules/highlights/lib/highlights.js:41:19)
at Object.mdOptions.highlight (/home/gnaag/Programy/turban-player/node_modules/marky-markdown/lib/render.js:49:26)
at default_rules.fence (/home/gnaag/Programy/turban-player/node_modules/markdown-it/lib/renderer.js:50:27)
at md.renderer.rules.fence (/home/gnaag/Programy/turban-player/node_modules/markdown-it-expand-tabs/index.js:16:25)
at Object.md.renderer.rules.fence (/home/gnaag/Programy/turban-player/node_modules/marky-markdown/lib/code-wrap.js:8:18)
at Renderer.render (/home/gnaag/Programy/turban-player/node_modules/markdown-it/lib/renderer.js:326:38)
at MarkdownIt.render (/home/gnaag/Programy/turban-player/node_modules/markdown-it/lib/index.js:539:24)
at module.exports (/home/gnaag/Programy/turban-player/node_modules/marky-markdown/lib/render.js:66:32)
at module.exports (/home/gnaag/Programy/turban-player/node_modules/marky-markdown/index.js:39:10)
at createSlideHtml (/home/gnaag/Programy/turban-player/node_modules/markpress/index.js:77:5)
at prev.then.h0 (/home/gnaag/Programy/turban-player/node_modules/markpress/index.js:172:13)
at :null:null

[Joan Gamell]

This might be caused by your overriding the oniguruma version, which first-mate uses. What is the original issue that you fixed?

[Matej Moško]

Sorry for not being clear. First problem was with onigurama, that I solved by overriding the version with .npmrc. It is not my problem. I just mentioned it for you to know about it.

The second problem the issue is about is the problem with marky-markdown dependency property-ttl. I don't know where exactly is the problem But using your package property-ttl isn't allowed to use timer.unref (it is in the console.log above). The only way I have been able to run your plugin was manually delete the call for timer.unref from property-ttl.

I really don't know what are the shortages of my "solution". But it is not a desirable solution, while after every npm install I get the unmodified version of the module property-ttl.

[Joan Gamell]

I've never seen that error before. It seems to be an error inside the highlights npm package (used by marky-markdown to highlight code blocks AFAIU). Could it be caused by the Markdown string you are passing as an input? I would try passing different (and simpler) strings to see if you can pinpoint what part of your input is causing the problem.