No JSON object could be decoded

[c0neNZ]

Hi,

Im relatively new to this. Created an account just so I could comment here. Have done a couple of different intro type python courses online before but I'm not a coder.

Anywho... Install seemed to work fine, most of the reqs were already installed from using other mapping tools.

After editing the config.json with my details, I tried running the html but couldn't see my work area. Thought I'd run the check.py anyway and this is the error I get:

I wasn't sure if I had screwed up the config.json somehow, but I tried copying another user's and also with the default (that comes the download, with just examples in place of real data) and I get the same error.

If anyone can point out where I'm going wrong, would be hugely appreciated.

PS - Really like where you are going with this app!

[moriakaice]

The default config.json won't work, as it's not correct a correct JSON file.

Just make sure what you have in "work" is an array of arrays of 4 numbers.

Like:

    "work":[
        [51.540341, -0.096817, 51.509689, -0.033302]
    ],

[c0neNZ]

I did say in my first post "After editing the config.json with my details..."???

Here is my config, just in case I'm still doing something really stupid:

{ "auth_service": "ptc", "users":[ {"username": "xxx1", "password": "pw1"}, {"username": "xxx2", "password": "pw2"} ], "work":[ [-41.280204,174.772504, -41.300125,174.787452], ], "stepsPerPassPerWorker": 50, "scanDelay": 10.5 }

As I said, I have tried with my own config, the default config (with no real data) and even another persons config just in case. All three give me the same error : No JSON object could be decoded.

I assume that means the issue isn't actually with my config.json, but as I stated in my first post, I'm not a developer. I am a very enthusiastic learner though and I'm happy to go read and research if necessary, just need someone to point me in the right direction.

Cheers

[moriakaice]

Hi there,

Again, it's because the JSON file you have is not valid - one extra comma that killed it.

Compare those two. Yours:

{
  "auth_service": "ptc",
  "users": [
    {
      "username": "xxx1",
      "password": "pw1"
    },
    {
      "username": "xxx2",
      "password": "pw2"
    }
  ],
  "work": [
    [
      -41.280204,
      174.772504,
      -41.300125,
      174.787452
    ],
  ],
  "stepsPerPassPerWorker": 50,
  "scanDelay": 10.5
}

and correct one:

{
  "auth_service": "ptc",
  "users": [
    {
      "username": "xxx1",
      "password": "pw1"
    },
    {
      "username": "xxx2",
      "password": "pw2"
    }
  ],
  "work": [
    [
      -41.280204,
      174.772504,
      -41.300125,
      174.787452
    ]
  ],
  "stepsPerPassPerWorker": 50,
  "scanDelay": 10.5
}

and you'll notice the only difference is the extra comma after the array inside the array of work property (in other words: you have ],], while it should be ]]).

To avoid such problems, in case you're unsure if your JSON file is correct or not, you can use services like http://pro.jsonlint.com/ or http://jsoneditoronline.org/ - paste your JSON file there and verify that the editors are happy with it.