Firebase-tools: Specify which file has JSON parsing error

[abdulrahman]

When I use the firebase deploy command I get this error:

Error: There was an error loading firebase.json:

Trailing comma in object at 11:9
}
^

My firebase.json file looks like this:

{
  "database": {
    "rules": "database.rules.json"
  },
  "hosting": {
    "public": "public"
  }
}

The json file doesn't even have line 11 !

[mbleigh]

Could there be a trailing comma in your rules file?

On Sat, Aug 20, 2016, 3:21 PM abdoosk [email protected] wrote:

When I use the firebase deploy command I get this error:

Error: There was an error loading firebase.json:

Trailing comma in object at 11:9
}
^

My firebase.json file looks like this:

{
"database": {
"rules": "database.rules.json"
},
"hosting": {
"public": "public"
}
}

The json file doesn't even have line 11 !

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[abdulrahman]

Yes, there was. Removed the comma and got no error :)
I never thought about checking the rules file.

Thank you Michael ♥

[lingtalfi]

same problem here, using the "firebase serve" command.

public > firebase serve

Error: There was an error loading firebase.json:

Trailing comma in object at 6:3
  }
  ^

The problem is that it doesn't tell which firebase.json it is using, and there is no such files in the directory whence the command was fired:

public > ls
404.html         bower_components index.html       manifest.json    note-app.html    sw-import.js

(following this tutorial, step 6: https://codelabs.developers.google.com/codelabs/polymer-firebase-pwa/index.html?index=..%2F..%2Findex#5)

[mbleigh]

@lingtalfi the Firebase CLI looks up the directory path recursively until it finds a firebase.json. It looks like you're listing out your public directory. I'd recommend you go up a level and check firebase.json and database.rules.json (or another rules file) for issues.

[lingtalfi]

Oh thanks, makes sense. So I went a level up, and now I have this error message (it's not the first time I already had problem with the "firebase serve" command some time ago):

pwapp-firebase > ls
database.rules.json firebase.json       public


pwapp-firebase > firebase serve

Error: There was an error loading firebase.json:

Trailing comma in object at 6:3
  }
  ^

But I see no trailling comma in my firebase.json file:

(firebase.json)

{
  "database": {
    "rules": "database.rules.json"
  },
  "hosting": {
    "public": "public"
  }
}

Weird.

[mbleigh]

As I mentioned, also look at database.rules.json as the Firebase CLI
parses it when initializing to make sure it's valid.

On Mon, Aug 22, 2016 at 10:33 AM LingTalfi [email protected] wrote:

Oh thanks, makes sense. So I went a level up, and now I have this error
message (it's not the first time I already had problem with the "firebase
serve" command some time ago):

pwapp-firebase > firebase serve

Error: There was an error loading firebase.json:

Trailing comma in object at 6:3
}
^

But I see no trailling comma in my firebase.json file:

(firebase.json)

{
"database": {
"rules": "database.rules.json"
},
"hosting": {
"public": "public"
}
}

Weird.

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[lingtalfi]

Oh I read too fast. Right, there was a trailling comma in "database.rules.json"; removed it and now it works just fine. Thank you. The poster should close this issue then.

[mbleigh]

I'm going to leave this open with the changed title "Specify which file has JSON parsing error" -- the CLI ought to direct you to the place in which the error actually occurred.