# File structure cannot be determined on data visualizer

**URL:** <https://discuss.elastic.co/t/file-structure-cannot-be-determined-on-data-visualizer/277070>\
**Category:** Kibana\
**Created:** [June 25, 2021, 1:43pm UTC](https://discuss.elastic.co/t/file-structure-cannot-be-determined-on-data-visualizer/277070 "2021-06-25T13:43:44Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Adrienb02](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/adrienb02/32/77345_2.png) [@Adrienb02](https://discuss.elastic.co/u/Adrienb02)\
**Post date:** [June 25, 2021, 1:43pm UTC](https://discuss.elastic.co/t/file-structure-cannot-be-determined-on-data-visualizer/277070/1 "2021-06-25T13:43:44Z")

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Hello everyone !

In advance, sorry for my english. I have an issue with the Data Visualizer.  
In my case, I have created a json file.  
My problem is that the data visualizer doesn't want my file as an input.

**The error :**

> [illegal\_argument\_exception]: Could not find a timestamp in the sample provided  
> Explanation so far:  
> [Using character encoding [UTF-8], which matched the input with [15%] confidence - first [8kB] of input was pure ASCII]  
> [Not NDJSON because an empty object was parsed: [[{"name": "Obj01", "cores": 0},]]  
> [Not XML because there was a parsing exception: [ParseError at [row,col]:[1,1] Message: Contenu non autorisé dans le prologue.]]  
> [Not CSV because a line has an unescaped quote that is not at the beginning or end of a field: [[{"name": "Obj01", "cores": 0},]]  
> [Not TSV because a line has an unescaped quote that is not at the beginning or end of a field: [[{"name": "Obj01", "cores": 0},]]  
> [Not semicolon delimited values because a line has an unescaped quote that is not at the beginning or end of a field: [[{"name": "Obj01", "cores": 0},]]  
> [Not vertical line delimited values because a line has an unescaped quote that is not at the beginning or end of a field: [[{"name": "Obj01", "cores": 0},]]  
> [Deciding sample is text]

**My json :**

```auto
[{"name": "Obj01", "cores": 0},
{"name": "Obj02", "cores": 0},
{"name": "Obj03", "cores": 0},
{"name": "Obj04", "cores": 0},
{"name": "Obj05", "cores": 0},
{"name": "Obj06", "cores": 3},
{"name": "Obj07", "cores": 3},
{"name": "Obj08", "cores": 0},
{"name": "Obj09", "cores": 0},
{"name": "Obj10", "cores": 0},
{"name": "Obj11", "cores": 32},
{"name": "Obj12", "cores": 0},
{"name": "Obj13", "cores": 0},
{"name": "Obj14", "cores": 487},
{"name": "Obj15", "cores": 0}]

```

I'm really new with Elastic and the json format, I just want to test if I can create a tool with Kibana that display for each object the number of cores. Can someone help me ?

Thank you!

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<div class="post-metadata">

**Author:** ![markov00](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/markov00/32/33316_2.png) [@markov00](https://discuss.elastic.co/u/markov00)\
**Post date:** [July 22, 2021, 10:05am UTC](https://discuss.elastic.co/t/file-structure-cannot-be-determined-on-data-visualizer/277070/2 "2021-07-22T10:05:58Z")

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Hi, sorry for the late reply. Have you solved your issue?  
Checking real quick on the JSON it doesn't look a valid format, the accepted formats are:

```auto
Delimited text files, such as CSV and TSV

Newline-delimited JSON

Log files with a common format for the timestamp

```

If you want to have one document for each row `{"name": "Obj03", "cores": 0}` in the provided JSON you have to separate them with a new line without using an array notation (the format is called [NDJSON](http://ndjson.org/)) like:

```auto
{"name": "Obj01", "cores": 0}
{"name": "Obj02", "cores": 0}
{"name": "Obj03", "cores": 0}
{"name": "Obj04", "cores": 0}
{"name": "Obj05", "cores": 0}
{"name": "Obj06", "cores": 3}

```

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [August 19, 2021, 10:06am UTC](https://discuss.elastic.co/t/file-structure-cannot-be-determined-on-data-visualizer/277070/3 "2021-08-19T10:06:24Z")

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