# Failed unmarshalling json: invalid character 'i' look ing for beginning of value

**URL:** <https://discuss.elastic.co/t/failed-unmarshalling-json-invalid-character-i-look-ing-for-beginning-of-value/1412>\
**Category:** Logstash\
**Created:** [May 27, 2015, 5:46pm UTC](https://discuss.elastic.co/t/failed-unmarshalling-json-invalid-character-i-look-ing-for-beginning-of-value/1412 "2015-05-27T17:46:11Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![iinquisitivee](https://avatars.discourse-cdn.com/v4/letter/i/bbce88/32.png) [@iinquisitivee](https://discuss.elastic.co/u/iinquisitivee)\
**Post date:** [May 27, 2015, 5:46pm UTC](https://discuss.elastic.co/t/failed-unmarshalling-json-invalid-character-i-look-ing-for-beginning-of-value/1412/1 "2015-05-27T17:46:11Z")

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my first excercise with logstash so pls pardon anything silly (runing on windows)  
I was trying it based on the blog post here..

> **[Visualizing data with Elasticsearch, Logstash and Kibana | webkid blog](https://webkid.io/blog/visualize-datasets-with-elk/)**
>
> teaser-image When designing visualizations, we sometimes have to deal with bigger datasets than standard tools can handle. For example…

and get an error when running logstash

2015/05/27 10:32:59.968792 Failed unmarshalling json: invalid character 'i' look  
ing for beginning of value  
2015/05/27 10:32:59.968792 Could not load config file logstash.conf: invalid cha  
racter 'i' looking for beginning of value

looks like logstash is having some trouble reading my conf file

thx for your help !

# my config file is below

input {  
file {  
path =\> "C:\software\data.csv"  
#type =\> "core2"  
start\_position =\> "beginning"  
}  
}  
filter {  
csv {  
separator =\> ","  
columns =\> ["Date","Open","High","Low","Close","Volume","Adj Close"]  
}  
mutate {convert =\> ["Open", "float"]}  
mutate {convert =\> ["High", "float"]}  
mutate {convert =\> ["Low", "float"]}  
mutate {convert =\> ["Close", "float"]}  
mutate {convert =\> ["Volume", "float"]}  
}  
output {  
elasticsearch {  
action =\> "index"  
host =\> "localhost"  
index =\> "stock"  
workers =\> 1  
}  
stdout {}  
}

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![](https://sea2.discourse-cdn.com/elastic/uploads/default/original/7/a/7a678e20b6c0ee7ad4f8bffaef5c455b00f2402a.png)

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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:** [July 6, 2017, 5:39am UTC](https://discuss.elastic.co/t/failed-unmarshalling-json-invalid-character-i-look-ing-for-beginning-of-value/1412/2 "2017-07-06T05:39:13Z")

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