Error converting some files

[arelstone]

I am trying to convert all our old .po files to .json and it works fine for almost all the files but two. se_SV.po and nb_NO.po

All .po files are identical but the msgstr key

Script:

var path = require('path');
var fs = require('fs');
var shell = require('shelljs');

function fromDir(startPath, filter) {
  if (!fs.existsSync(startPath)) {
    console.log("no dir ", startPath);
    return;
  }

  var files = fs.readdirSync(startPath);
  for (var i = 0; i < files.length; i++) {
    var filename = path.join(startPath, files[i]);
    var stat = fs.lstatSync(filename);
    if (stat.isDirectory()) {
      fromDir(filename, filter); //recurse
    }
    else if (filename.indexOf(filter) >= 0) {
      const split = filename.split('/')[1].split('.')[0]
      //console.log(split)
      const string = './node_modules/.bin/po2json ' + filename + ' ./locale/json/'+split+'.json -f mf -p'
      console.log("Converting", filename, "to json format")
      shell.exec(string)
    }
  }
}

fromDir('locale', '.po');

Error:

/path/to/my/repo/node_modules/gettext-parser/lib/poparser.js:393
            table.headers = sharedFuncs.parseHeader(tokens[i].msgstr[0]);
                                                                    ^

TypeError: Cannot read property '0' of undefined
    at Parser._normalize (/path/to/my/repo/node_modules/gettext-parser/lib/poparser.js:393:69)
    at Parser._finalize (/path/to/my/repo/node_modules/gettext-parser/lib/poparser.js:414:17)
    at Parser.parse (/path/to/my/repo/node_modules/gettext-parser/lib/poparser.js:63:17)
    at Object.module.exports.parse (/path/to/my/repo/node_modules/gettext-parser/lib/poparser.js:17:19)
    at module.exports (/path/to/my/repo/node_modules/po2json/lib/parse.js:27:45)
    at Object.module.exports [as parseFileSync] (/path/to/my/repo//node_modules/po2json/lib/parseFileSync.js:14:28)
    at Object.<anonymous> (/path/to/my/repo//node_modules/po2json/bin/po2json:50:22)
    at Module._compile (module.js:569:30)
    at Object.Module._extensions..js (module.js:580:10)
    at Module.load (module.js:503:32)

.po-file header

I've tries with the file header from #30 but still doesn't work

"Project-Id-Version: messages\n"
"Report-Msgid-Bugs-To: \n"
"POT-Creation-Date: 2015-08-03 16:00+0100\n"
"PO-Revision-Date: 2015-08-09 22:06+0100\n"
"Last-Translator: NAME <email@address.com>\n"
"Language-Team: NAME <email@address.com>\n"
"Language: sv\n"
"MIME-Version: 1.0\n"
"Content-Type: text/plain; charset=UTF-8\n"
"Content-Transfer-Encoding: 8bit\n"
"X-Generator: Poedit 1.8.1\n"