found invalid Unicode character escape code while parsing a quoted scalar

[wkoffel]

In many of my JSON files, I get a unicode error from the jekyll-slack generator:

Configuration file: /Users/wkoffel/dev/slack-archive/_config.yml
            Source: /Users/wkoffel/dev/slack-archive
       Destination: /Users/wkoffel/dev/slack-archive/_site
 Incremental build: disabled. Enable with --incremental
      Generating... 
jekyll 3.1.6 | Error:  (/Users/wkoffel/dev/slack-archive/_data/content/2015-12-02.json): found invalid Unicode character escape code while parsing a quoted scalar at line 24 column 21

The line in question contains an emoji (smiley face), output in the Slack json as:

        "file": {
            "id": "F0FQ1B5TK",
            "created": 1449111471,
            "timestamp": 1449111471,
            "name": "Curator goes rogue \ud83d\ude04 .png",
            "title": "Curator goes rogue :smile:",
            "mimetype": "image/jpeg",
            <etc...>
       }

Is this an issue with global jekyll configuration? Or something about the jekyll-slack parsing?

[mdlincoln]

Did you preprocess the original JSON as specified in the README? Is the JSON text you pasted in the issue from before or after this preprocessing?

[wkoffel]

Yes, I preprocessed as directed, and yes, this is the JSON from after the preprocessing.

Just in case I'm rusty on my find/sed usage, I ran this in the jekyll project root. I assume that it overwrites the original files with the substitutions.

$ find _data/ -name '*.json' -exec sed -i '' -e 's/\\\//\//g' {} \;
$ jekyll build