# 0.19.10 - Can not get the lang-javascript working
**URL:** https://discuss.elastic.co/t/0-19-10-can-not-get-the-lang-javascript-working/9644
**Category:** Elasticsearch
**Created:** [November 9, 2012, 10:25am UTC](https://discuss.elastic.co/t/0-19-10-can-not-get-the-lang-javascript-working/9644 "2012-11-09T10:25:02Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@Nicolas\_Lagoutte](https://discuss.elastic.co/u/Nicolas_Lagoutte)
#### Post date: [November 9, 2012, 10:25am UTC](https://discuss.elastic.co/t/0-19-10-can-not-get-the-lang-javascript-working/9644/1 "2012-11-09T10:25:02Z")
Hi board !
I'v been trying to use an custom sort script using mvel, all went well
until I started working with arrays.
I did some research and found that issue[https://github.com/elasticsearch/elasticsearch/pull/2291](https://github.com/elasticsearch/elasticsearch/pull/2291)on the tracker, it doesn't looks like a fix will be available soon.
Apparently one of the workaround is to use another lang for the script, so
I tried the javascript one: can't get it working.
I suppose (hope) I've missed a step or did something wrong - I'm on Ubuntu
12.04:
- sudo elasticsearch/bin/plugin -install
elasticsearch/elasticsearch-lang-javascript
- put "plugin.mandatory: lang-javascript" in
/etc/elasticsearch/elasticsearch.yaml to make sure the plugin is here and
correctly installed
- sudo service elasticsearch stop (then start)
The logs mention the plugin:
[2012-11-09 10:20:16,784][INFO][plugins] [Sekhmet]loaded
[], sites [lang-javascript]
But whenever I try a script query, I receive that answer:
script\_lang not supported [js]
Here is a query sample:
{
"query": {
"term":{
"user":"nico"
}
},
"sort": {
"\_script":{
"script":"doc['user'].value ? 1 : 0",
"type" : "number",
"lang" : "js"
}
}
}
Any ideas ?
Thank a lot.
--
---
### Author:  [@Igor\_Motov](https://discuss.elastic.co/u/Igor_Motov)
#### Post date: [November 9, 2012, 10:34pm UTC](https://discuss.elastic.co/t/0-19-10-can-not-get-the-lang-javascript-working/9644/2 "2012-11-09T22:34:14Z")
You didn't specify the plugin version, as a result the plugin was installed
as a site plugin. But it's easy to fix. Shut down the server, and run the
following command to remove site plugin installation first
```
sudo elasticsearch/bin/plugin -remove lang-javascript
```
and then install the plugin with correct version (currenlty 1.2.0)
```
sudo elasticsearch/bin/plugin -install
```
elasticsearch/elasticsearch-lang-javascript/1.2.0
Start server and check the log, it should look like this:
[2012-11-09 17:32:16,458][INFO][plugins] [Wagner, Kurt]
loaded [lang-javascript], sites
On Friday, November 9, 2012 5:25:03 AM UTC-5, Nicolas Lagoutte wrote:
> Hi board !
>
> I'v been trying to use an custom sort script using mvel, all went well
> until I started working with arrays.
> I did some research and found that issue[https://github.com/elasticsearch/elasticsearch/pull/2291](https://github.com/elasticsearch/elasticsearch/pull/2291)on the tracker, it doesn't looks like a fix will be available soon.
>
> Apparently one of the workaround is to use another lang for the script, so
> I tried the javascript one: can't get it working.
> I suppose (hope) I've missed a step or did something wrong - I'm on Ubuntu
> 12.04:
>
> - sudo elasticsearch/bin/plugin -install
> elasticsearch/elasticsearch-lang-javascript
> - put "plugin.mandatory: lang-javascript" in
> /etc/elasticsearch/elasticsearch.yaml to make sure the plugin is here and
> correctly installed
> - sudo service elasticsearch stop (then start)
>
> The logs mention the plugin:
> [2012-11-09 10:20:16,784][INFO][plugins] [Sekhmet]loaded
> , sites [lang-javascript]
>
> But whenever I try a script query, I receive that answer:
> script\_lang not supported [js]
>
> Here is a query sample:
> {
> "query": {
> "term":{
> "user":"nico"
> }
> },
> "sort": {
> "\_script":{
> "script":"doc['user'].value ? 1 : 0",
> "type" : "number",
> "lang" : "js"
> }
> }
> }
>
> Any ideas ?
>
> Thank a lot.
--
---
### Author:  [@Nicolas\_Lagoutte](https://discuss.elastic.co/u/Nicolas_Lagoutte)
#### Post date: [November 12, 2012, 9:04am UTC](https://discuss.elastic.co/t/0-19-10-can-not-get-the-lang-javascript-working/9644/3 "2012-11-12T09:04:01Z")
Ah ! Thank You Igor ! It works fine with the version.
I'm a bit confused though, the documentation about plugins here[http://www.elasticsearch.org/guide/reference/modules/plugins.html](http://www.elasticsearch.org/guide/reference/modules/plugins.html)states that without a version the master branch would be used. Is there a
bug with that behaviour ?
Le vendredi 9 novembre 2012 22:34:14 UTC, Igor Motov a écrit :
> You didn't specify the plugin version, as a result the plugin was
> installed as a site plugin. But it's easy to fix. Shut down the server, and
> run the following command to remove site plugin installation first
>
> ```
> sudo elasticsearch/bin/plugin -remove lang-javascript
>
> ```
>
> and then install the plugin with correct version (currenlty 1.2.0)
>
> ```
> sudo elasticsearch/bin/plugin -install
>
> ```
>
> elasticsearch/elasticsearch-lang-javascript/1.2.0
>
> Start server and check the log, it should look like this:
>
> [2012-11-09 17:32:16,458][INFO][plugins] [Wagner, Kurt]
> loaded [lang-javascript], sites
>
> On Friday, November 9, 2012 5:25:03 AM UTC-5, Nicolas Lagoutte wrote:
>
> > Hi board !
> >
> > I'v been trying to use an custom sort script using mvel, all went well
> > until I started working with arrays.
> > I did some research and found that issue[https://github.com/elasticsearch/elasticsearch/pull/2291](https://github.com/elasticsearch/elasticsearch/pull/2291)on the tracker, it doesn't looks like a fix will be available soon.
> >
> > Apparently one of the workaround is to use another lang for the script,
> > so I tried the javascript one: can't get it working.
> > I suppose (hope) I've missed a step or did something wrong - I'm on
> > Ubuntu 12.04:
> >
> > - sudo elasticsearch/bin/plugin -install
> > elasticsearch/elasticsearch-lang-javascript
> > - put "plugin.mandatory: lang-javascript" in
> > /etc/elasticsearch/elasticsearch.yaml to make sure the plugin is here and
> > correctly installed
> > - sudo service elasticsearch stop (then start)
> >
> > The logs mention the plugin:
> > [2012-11-09 10:20:16,784][INFO][plugins] [Sekhmet]loaded
> > , sites [lang-javascript]
> >
> > But whenever I try a script query, I receive that answer:
> > script\_lang not supported [js]
> >
> > Here is a query sample:
> > {
> > "query": {
> > "term":{
> > "user":"nico"
> > }
> > },
> > "sort": {
> > "\_script":{
> > "script":"doc['user'].value ? 1 : 0",
> > "type" : "number",
> > "lang" : "js"
> > }
> > }
> > }
> >
> > Any ideas ?
> >
> > Thank a lot.
--
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 6, 2017, 3:04am UTC](https://discuss.elastic.co/t/0-19-10-can-not-get-the-lang-javascript-working/9644/4 "2017-07-06T03:04:50Z")