I coded this, the extension is working for me, when I went to upload it to the Chrome Web Store I keep getting manifest.json errors, can someone help with this?
file=manifest.json
{
  "manifest_version": 2,
  "name": "Free SMS Texting",
  "default_locale": "en",
  "description": "Free SMS Texting!",
  "version": "2",
  "icons": {
    "18": "/images/icon19.png",
    "38": "/images/icon38.png"
  },
  "developer": {
    "name": "annoyingcalc",
    "url": "http://omnimaga.org/"
  },

  "set_action": {
"default_title": "Texting",
    "default_popup": "index.html"
                }
}