Getting this issue when trying to Activate a new version of my Extension

{
  "type": "error.SuiteScriptError",
  "name": "285696",
  "message": "Syntax error: missing } after property list",
  "stack": [
    "createError(N/error)"
  ],
  "cause": {
    "message": "Syntax error: missing } after property list",
    "stack": [
      "createError(N/error)",
      "(/SuiteBundles/Bundle 426586/ExtensionMechanism.Server/Services/FileApiSS2.js:318)",
      "E(/SuiteBundles/Bundle 426586/third_parties/underscore.js:6)",
      "copyFiles(/SuiteBundles/Bundle 426586/ExtensionMechanism.Server/Services/FileApiSS2.js:267)",
      "copyTmpFile(/SuiteBundles/Bundle 426586/ExtensionMechanism.Server/JobToProcess/ImpactChangesMapReduce.js:377)",
      "map(/SuiteBundles/Bundle 426586/ExtensionMechanism.Server/JobToProcess/ImpactChangesMapReduce.js:221)"
    ],
    "name": "285696"
  },
  "id": "",
  "notifyOff": false,
  "userFacing": true
}

Seems like there is some syntax error in one of your extensions code.