# @ not recognized as ....command
**URL:** https://discuss.elastic.co/t/not-recognized-as-command/131112
**Category:** Logstash
**Created:** [May 9, 2018, 6:55am UTC](https://discuss.elastic.co/t/not-recognized-as-command/131112 "2018-05-09T06:55:00Z")
**Posts on this page:** 16
**Page:** 1
### Author:  [@Pba1211](https://discuss.elastic.co/u/Pba1211)
#### Post date: [May 9, 2018, 6:55am UTC](https://discuss.elastic.co/t/not-recognized-as-command/131112/1 "2018-05-09T06:55:00Z")
Hello,
After Installing Logstash i tried to run logstash.bat.
It returns with a error telling me:
C:\Elastic\_demo\Logstash\bin\>logstash.bat
'■@' is not recognized as an internal or external command,
operable program or batch file.
I have not enough knowledge to find this out, can you help me in this one please.
I'm running Elastic search, Kibana and Logstash 6.2.4
thx
Pieter
---
### Author:  [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)
#### Post date: [May 9, 2018, 8:15am UTC](https://discuss.elastic.co/t/not-recognized-as-command/131112/2 "2018-05-09T08:15:51Z")
Is there a garbage character at the very beginning of logstash.bat? You may have to use a hex editor to see it.
---
### Author:  [@Pba1211](https://discuss.elastic.co/u/Pba1211)
#### Post date: [May 9, 2018, 9:28am UTC](https://discuss.elastic.co/t/not-recognized-as-command/131112/3 "2018-05-09T09:28:07Z")
Hello,
thx for answering on my question.
To be honest..I wouldnt know ,
I attached a JPG with the logstash.bat text in it.
If you can tell something about it, than it would be most appreciated.
thx in advance,
Pieter
---
### Author:  [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)
#### Post date: [May 9, 2018, 10:58am UTC](https://discuss.elastic.co/t/not-recognized-as-command/131112/4 "2018-05-09T10:58:23Z")
Garbage characters are typically not printable so you really need to inspect the file with a hex editor or some other tool that displays _exactly_ what the file contains.
Did you edit logstash.bat yourself or is the file straight from the zip file you downloaded?
---
### Author:  [@Pba1211](https://discuss.elastic.co/u/Pba1211)
#### Post date: [May 9, 2018, 11:28am UTC](https://discuss.elastic.co/t/not-recognized-as-command/131112/5 "2018-05-09T11:28:50Z")
No I did not edit it myself, it came with the .zip file.
Also i unpacked a new Logstash map and copied the .bat file to the existing location.
Same results.
---
### Author:  [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)
#### Post date: [May 9, 2018, 1:17pm UTC](https://discuss.elastic.co/t/not-recognized-as-command/131112/6 "2018-05-09T13:17:57Z")
And what's the URL to the zipfile you downloaded?
---
### Author:  [@Pba1211](https://discuss.elastic.co/u/Pba1211)
#### Post date: [May 22, 2018, 8:53am UTC](https://discuss.elastic.co/t/not-recognized-as-command/131112/7 "2018-05-22T08:53:34Z")
Sorry for the late response, Just went for a short holliday 🙂
I downloaded and installed the following :
Download:
[https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-6.2.4.msi](https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-6.2.4.msi)
[https://artifacts.elastic.co/downloads/kibana/kibana-6.2.4-windows-x86\_64.zip](https://artifacts.elastic.co/downloads/kibana/kibana-6.2.4-windows-x86_64.zip)
[https://artifacts.elastic.co/downloads/logstash/logstash-6.2.4.zip](https://artifacts.elastic.co/downloads/logstash/logstash-6.2.4.zip)
[https://github.com/codingchili/parser-excel-elasticsearch/archive/master.zip](https://github.com/codingchili/parser-excel-elasticsearch/archive/master.zip)
---
### Author:  [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)
#### Post date: [May 22, 2018, 10:14am UTC](https://discuss.elastic.co/t/not-recognized-as-command/131112/8 "2018-05-22T10:14:26Z")
The original file looks fine to me so I don't know what's going on.
---
### Author:  [@Pba1211](https://discuss.elastic.co/u/Pba1211)
#### Post date: [May 22, 2018, 10:19am UTC](https://discuss.elastic.co/t/not-recognized-as-command/131112/9 "2018-05-22T10:19:28Z")
Just to be sure that everything was installed by the book...
I uninstalled logstash and after a reboot unzipped and installed it again.
By now it comes with another message:
C:\Elastic\_demo\logstash-6.2.4\bin\>logstash.bat
Unrecognized VM option 'UseParNewGC'
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.
Is this perhaps a known issue ( simple to resolve so to speak 🙂 )
---
### Author:  [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)
#### Post date: [May 22, 2018, 10:20am UTC](https://discuss.elastic.co/t/not-recognized-as-command/131112/10 "2018-05-22T10:20:53Z")
What's the output of `java -version`?
---
### Author:  [@Pba1211](https://discuss.elastic.co/u/Pba1211)
#### Post date: [May 22, 2018, 10:59am UTC](https://discuss.elastic.co/t/not-recognized-as-command/131112/11 "2018-05-22T10:59:47Z")
C:\Elastic\_demo\logstash-6.2.4\bin\>java -version
java version "10.0.1" 2018-04-17
Java(TM) SE Runtime Environment 18.3 (build 10.0.1+10)
Java HotSpot(TM) 64-Bit Server VM 18.3 (build 10.0.1+10, mixed mode)
---
### Author:  [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)
#### Post date: [May 22, 2018, 11:57am UTC](https://discuss.elastic.co/t/not-recognized-as-command/131112/12 "2018-05-22T11:57:12Z")
Java 10 isn't supported: [https://www.elastic.co/support/matrix#matrix\_jvm](https://www.elastic.co/support/matrix#matrix_jvm)
---
### Author:  [@Pba1211](https://discuss.elastic.co/u/Pba1211)
#### Post date: [May 22, 2018, 12:11pm UTC](https://discuss.elastic.co/t/not-recognized-as-command/131112/13 "2018-05-22T12:11:02Z")
oempfff... thx didn't checked it indeed..
I am going to uninstall v10 en install V9
thanx
---
### Author:  [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)
#### Post date: [May 22, 2018, 12:18pm UTC](https://discuss.elastic.co/t/not-recognized-as-command/131112/14 "2018-05-22T12:18:03Z")
As per the support matrix Logstash still requires Java8, so Java9 is unlikely to work as well.
---
### Author:  [@Pba1211](https://discuss.elastic.co/u/Pba1211)
#### Post date: [May 23, 2018, 6:23am UTC](https://discuss.elastic.co/t/not-recognized-as-command/131112/15 "2018-05-23T06:23:24Z")
Christian,
Thanx for the correction :), I looked only to the top of the matrix instead of the part for Logstash.
As far as I can see even I succeded the installation by now...
I can continue to find out what i can do witrh Elastic search.
thank you for the support.
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [June 20, 2018, 6:23am UTC](https://discuss.elastic.co/t/not-recognized-as-command/131112/16 "2018-06-20T06:23:40Z")
This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.