# Error: Could not find or load main class org.elasticsearch.shield.authc.esusers.tool.ESUsersTool

**URL:** <https://discuss.elastic.co/t/error-could-not-find-or-load-main-class-org-elasticsearch-shield-authc-esusers-tool-esuserstool/56374>\
**Category:** Elasticsearch\
**Created:** [July 26, 2016, 9:44am UTC](https://discuss.elastic.co/t/error-could-not-find-or-load-main-class-org-elasticsearch-shield-authc-esusers-tool-esuserstool/56374 "2016-07-26T09:44:36Z")\
**Posts on this page:** 18\
**Page:** 1

<div class="post-metadata">

**Author:** ![Jenny](https://avatars.discourse-cdn.com/v4/letter/j/e9bcb4/32.png) [@Jenny](https://discuss.elastic.co/u/Jenny)\
**Post date:** [July 26, 2016, 9:44am UTC](https://discuss.elastic.co/t/error-could-not-find-or-load-main-class-org-elasticsearch-shield-authc-esusers-tool-esuserstool/56374/1 "2016-07-26T09:44:36Z")

</div>

Hi,  
I am installing shield and get error when I want to add a user like below. I searched and found some answers, however none of them helped me solved this. Anybody help ?

```
root@iZ28opsxl5dZ:[/data/elk/elasticsearch-2.3.4]bin/shield/esusers useradd es_admin -r admin
Error: Could not find or load main class org.elasticsearch.shield.authc.esusers.tool.ESUsersTool

```

My OP is centos6.6, installed kibana4.5, elassticsearch2.3,logstash2.3,shield2.3.

---

<div class="post-metadata">

**Author:** ![danielmitterdorfer](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/danielmitterdorfer/32/110510_2.png) [@danielmitterdorfer](https://discuss.elastic.co/u/danielmitterdorfer)\
**Post date:** [July 27, 2016, 7:24am UTC](https://discuss.elastic.co/t/error-could-not-find-or-load-main-class-org-elasticsearch-shield-authc-esusers-tool-esuserstool/56374/2 "2016-07-27T07:24:22Z")

</div>

Hi @Jenny,

I tried to do the same. The following worked fine for me:

1. Download and unzip Elasticsearch 2.3.4 (let's suppose I've also unzipped ES into `/data/elk/elasticsearch-2.3.4`)
2. `cd /data/elk/elasticsearch-2.3.4`
3. `bin/plugin install license`
4. `bin/plugin install shield`
5. `bin/shield/esusers useradd es_admin -r admin`

In the 5th step it asked me to type in a password and confirm it and exited normally.

Are you able to restart from scratch and retry the steps I have mentioned above?

Daniel

---

<div class="post-metadata">

**Author:** ![1222kkk](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/1222kkk/32/23635_2.png) [@1222kkk](https://discuss.elastic.co/u/1222kkk)\
**Post date:** [July 27, 2016, 7:56am UTC](https://discuss.elastic.co/t/error-could-not-find-or-load-main-class-org-elasticsearch-shield-authc-esusers-tool-esuserstool/56374/3 "2016-07-27T07:56:33Z")

</div>

oh, it means reinstall es?

---

<div class="post-metadata">

**Author:** ![danielmitterdorfer](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/danielmitterdorfer/32/110510_2.png) [@danielmitterdorfer](https://discuss.elastic.co/u/danielmitterdorfer)\
**Post date:** [July 27, 2016, 8:20am UTC](https://discuss.elastic.co/t/error-could-not-find-or-load-main-class-org-elasticsearch-shield-authc-esusers-tool-esuserstool/56374/4 "2016-07-27T08:20:15Z")

</div>

Hi @1222kkk,

this does not mean that this is necessary in all cases but based on the description I have no clue what steps have been executed before and in which state the system is. In that case it is best to start with a clean slate.

Daniel

---

<div class="post-metadata">

**Author:** ![r.ganeshbabu](https://avatars.discourse-cdn.com/v4/letter/r/4da419/32.png) [@r.ganeshbabu](https://discuss.elastic.co/u/r.ganeshbabu)\
**Post date:** [July 27, 2016, 2:38pm UTC](https://discuss.elastic.co/t/error-could-not-find-or-load-main-class-org-elasticsearch-shield-authc-esusers-tool-esuserstool/56374/5 "2016-07-27T14:38:04Z")

</div>

Hi @danielmitterdorfer,

I faced the similar issue when I creating an esuser in Es 2.3.4

Do we need to set classpath var?

[esadmin@mue2rhegrdd001 elasticsearch-2.3.4]$ bin/shield/esusers useradd esadmin -r admin

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/cli/CommandLineParser  
at java.lang.Class.getDeclaredMethods0(Native Method)  
at java.lang.Class.privateGetDeclaredMethods(Class.java:2625)  
at java.lang.Class.getMethod0(Class.java:2866)  
at java.lang.Class.getMethod(Class.java:1676)  
at sun.launcher.LauncherHelper.getMainMethod(LauncherHelper.java:494)  
at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:486)  
Caused by: java.lang.ClassNotFoundException: org.apache.commons.cli.CommandLineParser  
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)  
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)  
at java.security.AccessController.doPrivileged(Native Method)  
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)  
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)  
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)  
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)  
... 6 more

Could you please help us to resolve?

Thanks,  
Ganeshbabu R

---

<div class="post-metadata">

**Author:** ![danielmitterdorfer](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/danielmitterdorfer/32/110510_2.png) [@danielmitterdorfer](https://discuss.elastic.co/u/danielmitterdorfer)\
**Post date:** [July 27, 2016, 2:44pm UTC](https://discuss.elastic.co/t/error-could-not-find-or-load-main-class-org-elasticsearch-shield-authc-esusers-tool-esuserstool/56374/6 "2016-07-27T14:44:07Z")

</div>

Hi @r.ganeshbabu,

> Do we need to set classpath var?

No.

`NoClassDefFoundError` indicates that the class is not found during runtime (the most likely cause in this case is that the JAR is not "visible" to the esusers script). It looks to me that your installation is completely broken. How did you install Elasticsearch? Did you try all 5 steps that I have described above?

Daniel

---

<div class="post-metadata">

**Author:** ![r.ganeshbabu](https://avatars.discourse-cdn.com/v4/letter/r/4da419/32.png) [@r.ganeshbabu](https://discuss.elastic.co/u/r.ganeshbabu)\
**Post date:** [July 27, 2016, 3:37pm UTC](https://discuss.elastic.co/t/error-could-not-find-or-load-main-class-org-elasticsearch-shield-authc-esusers-tool-esuserstool/56374/7 "2016-07-27T15:37:04Z")

</div>

Hi @danielmitterdorfer

I followed step 1 & 2 and then I created yml files to the nodes and after I started Elasticsearch. Next I followed installation of shield,

At initially when I execute the bin/shield/esusers useradd esadmin -r admin, I am getting below error,  
"You must set the ES\_CLASSPATH var"

So i checked in the shell file inside bin folder \*\*([elasticsearch.sh](http://elasticsearch.sh))\*\*and it mentioned ES\_CLASSPATH. So I manually did the setting as like below,  
export ES\_CLASSPATH=/home/esadmin/elasticsearch-2.3.4/lib/elasticsearch-2.3.4.jar

Next I tried to create es\_admin user and getting the "NoClassDeffoundError"

Please correct me know if am doing something wrong in the ES setup.

Thanks,  
Ganeshbabu R

---

<div class="post-metadata">

**Author:** ![danielmitterdorfer](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/danielmitterdorfer/32/110510_2.png) [@danielmitterdorfer](https://discuss.elastic.co/u/danielmitterdorfer)\
**Post date:** [July 27, 2016, 4:42pm UTC](https://discuss.elastic.co/t/error-could-not-find-or-load-main-class-org-elasticsearch-shield-authc-esusers-tool-esuserstool/56374/8 "2016-07-27T16:42:48Z")

</div>

Hi @r.ganeshbabu,

I checked the code in bin/shield/esusers. As far as I can see it determines the home directory of Elasticsearch (in your case `/home/esadmin/elasticsearch-2.3.4`) and will execute the script `bin/elasticsearch.in.sh` prior to checking `$ES_CLASSPATH` (which is populated by [elasticsearch.in.sh](http://elasticsearch.in.sh)) so there is something weird going on.

Is this script maybe missing or lacking the correct permissions? (you don't have to do anything special, just unzip Elasticsearch provided you have installed from a zip file).

If I do a `ls -l` in the `bin` directory, it shows:

```auto
dm@io:elasticsearch-2.3.4/bin $ ls -la
total 648
drwxr-xr-x@ 13 dm staff 442 Jul 27 18:32 .
drwxr-xr-x@ 12 dm staff 408 Jul 27 11:29 ..
-rwxr-xr-x@ 1 dm staff 5551 Jun 30 11:22 elasticsearch
-rw-rw-r--@ 1 dm staff 104448 Jan 27 2016 elasticsearch-service-mgr.exe
-rw-rw-r--@ 1 dm staff 103936 Jan 27 2016 elasticsearch-service-x64.exe
-rw-rw-r--@ 1 dm staff 80896 Jan 27 2016 elasticsearch-service-x86.exe
-rw-rw-r--@ 1 dm staff 909 Jun 30 11:22 elasticsearch.bat
-rw-rw-r--@ 1 dm staff 3307 Jun 30 11:22 elasticsearch.in.bat
-rwxr-xr-x@ 1 dm staff 2814 Jun 30 11:22 elasticsearch.in.sh
-rwxr-xr-x@ 1 dm staff 2992 Jun 30 11:22 plugin
-rw-rw-r--@ 1 dm staff 1303 Jun 30 11:22 plugin.bat
-rw-rw-r--@ 1 dm staff 6501 Jun 30 11:22 service.bat
drwxr-xr-x 7 dm staff 238 Jul 27 18:32 shield

```

Btw, there is no need to start Elasticsearch prior to adding users.

Daniel

---

<div class="post-metadata">

**Author:** ![danielmitterdorfer](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/danielmitterdorfer/32/110510_2.png) [@danielmitterdorfer](https://discuss.elastic.co/u/danielmitterdorfer)\
**Post date:** [July 27, 2016, 4:45pm UTC](https://discuss.elastic.co/t/error-could-not-find-or-load-main-class-org-elasticsearch-shield-authc-esusers-tool-esuserstool/56374/9 "2016-07-27T16:45:19Z")

</div>

One thing I have forgotten. There is no need to define ES\_CLASSPATH yourself. The scripts will do this. So please ensure you do `unset ES_CLASSPATH` before proceeding.

Daniel

---

<div class="post-metadata">

**Author:** ![r.ganeshbabu](https://avatars.discourse-cdn.com/v4/letter/r/4da419/32.png) [@r.ganeshbabu](https://discuss.elastic.co/u/r.ganeshbabu)\
**Post date:** [July 28, 2016, 8:12am UTC](https://discuss.elastic.co/t/error-could-not-find-or-load-main-class-org-elasticsearch-shield-authc-esusers-tool-esuserstool/56374/10 "2016-07-28T08:12:17Z")

</div>

Hi @danielmitterdorfer,

Thanks for the clarification so what I did is, I started from scratch and installed ES & shield and able to create esadmin user 🙂

But we didn't have license for shield latest version I am getting below exception in ES logs,

**License will expire on [Saturday, July 30, 2016]. If you have a new license, please update it.**  
**Otherwise, please reach out to your support contact**

**Commercial plugins operate with reduced functionality on license expiration:**  
**- shield**  
**- Cluster health, cluster stats and indices stats operations are blocked**  
**- All data operations (read and write) continue to work**

Also I tried verifying the shield esadmin user by executing the following curl command,  
**curl --user esadmin:Gemmot08 -XGET '10.247.0.5:9200?pretty=true'**

I am getting below error,

```
{
  "error" : {
    "root_cause" : [ {
      "type" : "security_exception",
      "reason" : "unable to authenticate user [esadmin] for REST request [/?pretty=true]",
      "header" : {
        "WWW-Authenticate" : "Basic realm=\"shield\""
      }
    } ],
    "type" : "security_exception",
    "reason" : "unable to authenticate user [esadmin] for REST request [/?pretty=true]",
    "header" : {
      "WWW-Authenticate" : "Basic realm=\"shield\""
    }
  },
  "status" : 401
}

```

Due to that, I couldn't login into the ES HQ & marvel plugins for monitoring purpose.

Is the shield not working because of license update?

Please let us know so that I can work the team to get the latest shield license.

Thanks,  
Ganeshbabu R

---

<div class="post-metadata">

**Author:** ![r.ganeshbabu](https://avatars.discourse-cdn.com/v4/letter/r/4da419/32.png) [@r.ganeshbabu](https://discuss.elastic.co/u/r.ganeshbabu)\
**Post date:** [July 28, 2016, 1:51pm UTC](https://discuss.elastic.co/t/error-could-not-find-or-load-main-class-org-elasticsearch-shield-authc-esusers-tool-esuserstool/56374/11 "2016-07-28T13:51:42Z")

</div>

Hi @danielmitterdorfer

Could you please help me to resolve this?

Thanks,  
Ganeshbabu R

---

<div class="post-metadata">

**Author:** ![danielmitterdorfer](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/danielmitterdorfer/32/110510_2.png) [@danielmitterdorfer](https://discuss.elastic.co/u/danielmitterdorfer)\
**Post date:** [July 28, 2016, 2:08pm UTC](https://discuss.elastic.co/t/error-could-not-find-or-load-main-class-org-elasticsearch-shield-authc-esusers-tool-esuserstool/56374/12 "2016-07-28T14:08:32Z")

</div>

Hi @r.ganeshbabu,

> License will expire on [Saturday, July 30, 2016]. If you have a new license, please update it.  
> Otherwise, please reach out to your support contact

Shield is a commercial extension of Elasticsearch. This message just says that your license will expire on Saturday (I guess you are on a trial license). If you want a permanent license, you should [contact Elastic](https://www.elastic.co/contact).

Your curl command looks ok to me. Maybe you have mistyped the password? You should also check whether the logs contain more details.

Daniel

P.S.: I'd avoid posting passwords in public forums.

---

<div class="post-metadata">

**Author:** ![r.ganeshbabu](https://avatars.discourse-cdn.com/v4/letter/r/4da419/32.png) [@r.ganeshbabu](https://discuss.elastic.co/u/r.ganeshbabu)\
**Post date:** [July 28, 2016, 3:14pm UTC](https://discuss.elastic.co/t/error-could-not-find-or-load-main-class-org-elasticsearch-shield-authc-esusers-tool-esuserstool/56374/13 "2016-07-28T15:14:27Z")

</div>

Hi @danielmitterdorfer,

Okay sure I will contact support team for license.

I have tried many times and I kept very simple password too, though I am getting the same error,

Below is the details in the ES logs,

```
[INFO][node] [mue2rhegrdd001_RD_NDX_MASTER] version[2.3.4], pid[19771], build[e455fd0/2016-06-30T11:24:31Z]
[node] [mue2rhegrdd001_RD_NDX_MASTER] initializing ...
[INFO][plugins] [mue2rhegrdd001_RD_NDX_MASTER] modules [lang-groovy, reindex, lang-expression], plugins [hq, siren-join, shield, license, head], sites [hq, head]
[INFO][env] [mue2rhegrdd001_RD_NDX_MASTER] using [1] data paths, mounts [[/app/datadrive (/dev/sdc1)]], net usable_space [955.2gb], net total_space [1006.8gb], spins? [possibly], types [ext4]
[INFO][env] [mue2rhegrdd001_RD_NDX_MASTER] heap size [7.9gb], compressed ordinary object pointers [true]
[WARN][env] [mue2rhegrdd001_RD_NDX_MASTER] max file descriptors [4096] for elasticsearch process likely too low, consider increasing to at least [65536]
[INFO][http] [mue2rhegrdd001_RD_NDX_MASTER] Using [org.elasticsearch.http.netty.NettyHttpServerTransport] as http transport, overridden by [shield]
[INFO][transport] [mue2rhegrdd001_RD_NDX_MASTER] Using [org.elasticsearch.shield.transport.ShieldServerTransportService] as transport service, overridden by [shield]
[INFO][transport] [mue2rhegrdd001_RD_NDX_MASTER] Using [org.elasticsearch.shield.transport.netty.ShieldNettyTransport] as transport, overridden by [shield]
[INFO][node] [mue2rhegrdd001_RD_NDX_MASTER] initialized
[INFO][node] [mue2rhegrdd001_RD_NDX_MASTER] starting ...
[INFO][shield.transport] [mue2rhegrdd001_RD_NDX_MASTER] publish_address {10.247.0.5:9300}, bound_addresses {10.247.0.5:9300}
[INFO][discovery] [mue2rhegrdd001_RD_NDX_MASTER] ES_RD_NDX_DEV/d6k_ElEITQKlTOhgeVdAoQ
[WARN][bootstrap] unable to install syscall filter: seccomp unavailable: CONFIG_SECCOMP not compiled into kernel, CONFIG_SECCOMP and CONFIG_SECCOMP_FILTER are needed
[WARN][bootstrap] Unable to lock JVM Memory: error=12,reason=Cannot allocate memory
[WARN][bootstrap] This can result in part of the JVM being swapped out.
[WARN][bootstrap] Increase RLIMIT_MEMLOCK, soft limit: 65536, hard limit: 65536
[WARN][bootstrap] These can be adjusted by modifying /etc/security/limits.conf, for example: 
    # allow user 'esadmin' mlockall
    esadmin soft memlock unlimited
    esadmin hard memlock unlimited
[WARN][bootstrap] If you are logged in interactively, you will have to re-login for the new limits to take effect.
[INFO][node] [mue2rhegrdd001_RD_NDX_DATA] version[2.3.4], pid[19809], build[e455fd0/2016-06-30T11:24:31Z]
[INFO][node] [mue2rhegrdd001_RD_NDX_DATA] initializing ...
[INFO][plugins] [mue2rhegrdd001_RD_NDX_DATA] modules [lang-groovy, reindex, lang-expression], plugins [hq, siren-join, shield, license, head], sites [hq, head]
[INFO][env] [mue2rhegrdd001_RD_NDX_DATA] using [1] data paths, mounts [[/app/datadrive (/dev/sdc1)]], net usable_space [955.2gb], net total_space [1006.8gb], spins? [possibly], types [ext4]
[INFO][env] [mue2rhegrdd001_RD_NDX_DATA] heap size [15.9gb], compressed ordinary object pointers [true]
[WARN][env] [mue2rhegrdd001_RD_NDX_DATA] max file descriptors [4096] for elasticsearch process likely too low, consider increasing to at least [65536]
[INFO][http] [mue2rhegrdd001_RD_NDX_DATA] Using [org.elasticsearch.http.netty.NettyHttpServerTransport] as http transport, overridden by [shield]
[INFO][transport] [mue2rhegrdd001_RD_NDX_DATA] Using [org.elasticsearch.shield.transport.ShieldServerTransportService] as transport service, overridden by [shield]
[INFO][transport] [mue2rhegrdd001_RD_NDX_DATA] Using [org.elasticsearch.shield.transport.netty.ShieldNettyTransport] as transport, overridden by [shield]
[INFO][node] [mue2rhegrdd001_RD_NDX_DATA] initialized
[INFO][node] [mue2rhegrdd001_RD_NDX_DATA] starting ...
[INFO][shield.transport] [mue2rhegrdd001_RD_NDX_DATA] publish_address {10.247.0.5:9260}, bound_addresses {10.247.0.5:9260}
[INFO][discovery] [mue2rhegrdd001_RD_NDX_DATA] ES_RD_NDX_DEV/7zshcpocTciXd9Gxs3HFvA
[WARN][discovery] [mue2rhegrdd001_RD_NDX_MASTER] waited for 30s and no initial state was set by the discovery
[INFO][http] [mue2rhegrdd001_RD_NDX_MASTER] publish_address {10.247.0.5:9200}, bound_addresses {10.247.0.5:9200}
[INFO][node] [mue2rhegrdd001_RD_NDX_MASTER] started
[WARN][discovery] [mue2rhegrdd001_RD_NDX_DATA] waited for 30s and no initial state was set by the discovery
[INFO][http] [mue2rhegrdd001_RD_NDX_DATA] publish_address {10.247.0.5:9240}, bound_addresses {10.247.0.5:9240}
[INFO][node] [mue2rhegrdd001_RD_NDX_DATA] started

```

Hope I didn't miss something not related to shield in the logs..

Please let us know your response.

Thanks,  
Ganeshbabu R

---

<div class="post-metadata">

**Author:** ![danielmitterdorfer](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/danielmitterdorfer/32/110510_2.png) [@danielmitterdorfer](https://discuss.elastic.co/u/danielmitterdorfer)\
**Post date:** [July 29, 2016, 12:01pm UTC](https://discuss.elastic.co/t/error-could-not-find-or-load-main-class-org-elasticsearch-shield-authc-esusers-tool-esuserstool/56374/14 "2016-07-29T12:01:46Z")

</div>

Hi,

> [@r.ganeshbabu](#):
>
> I tried verifying the shield esadmin user by executing the following curl command,curl --user esadmin:Gemmot08 -XGET '10.247.0.5:9200?pretty=true'

Please double check that your username is really "esadmin". Because the username in the command that I have shown is "es\_admin" (note the underscore!). So I guess your command should really be:

```auto
curl --user es_admin:Gemmot08 -XGET '10.247.0.5:9200?pretty=true'

```

Daniel

P.S.: Please change the password of your cluster if you haven't already done so.

---

<div class="post-metadata">

**Author:** ![r.ganeshbabu](https://avatars.discourse-cdn.com/v4/letter/r/4da419/32.png) [@r.ganeshbabu](https://discuss.elastic.co/u/r.ganeshbabu)\
**Post date:** [August 1, 2016, 7:13am UTC](https://discuss.elastic.co/t/error-could-not-find-or-load-main-class-org-elasticsearch-shield-authc-esusers-tool-esuserstool/56374/15 "2016-08-01T07:13:43Z")

</div>

Hi @danielmitterdorfer

> [@danielmitterdorfer](#):
>
> Please double check that your username is really "esadmin". Because the username in the command that I have shown is "es\_admin" (note the underscore!). So I guess your command should really be:

I tried both ways but still I am getting the same error.

> [@danielmitterdorfer](#):
>
> Please change the password of your cluster if you haven't already done so.

Oh, Is it possible?

Can you help me how to change the password of cluster?

Thanks,  
Ganeshbabu R

---

<div class="post-metadata">

**Author:** ![danielmitterdorfer](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/danielmitterdorfer/32/110510_2.png) [@danielmitterdorfer](https://discuss.elastic.co/u/danielmitterdorfer)\
**Post date:** [August 1, 2016, 7:30am UTC](https://discuss.elastic.co/t/error-could-not-find-or-load-main-class-org-elasticsearch-shield-authc-esusers-tool-esuserstool/56374/16 "2016-08-01T07:30:20Z")

</div>

Hi @r.ganeshbabu,

> I tried both ways but still I am getting the same error.

Really, this must be a typo or something like that. Can you revisit the whole installation procedure step by step and check very carefully that you did not introduce a typo? I know this sounds maybe obvious but it looks like you get a very minor detail wrong. The user name and the password need to match _exactly_ with what you entered when you've created the user.

> Can you help me how to change the password of cluster?

See the [Shield documentation on how to change passwords with `esusers`](https://www.elastic.co/guide/en/shield/2.3/file-realm.html#esusers-pass).

Daniel

---

<div class="post-metadata">

**Author:** ![r.ganeshbabu](https://avatars.discourse-cdn.com/v4/letter/r/4da419/32.png) [@r.ganeshbabu](https://discuss.elastic.co/u/r.ganeshbabu)\
**Post date:** [August 1, 2016, 7:37am UTC](https://discuss.elastic.co/t/error-could-not-find-or-load-main-class-org-elasticsearch-shield-authc-esusers-tool-esuserstool/56374/17 "2016-08-01T07:37:19Z")

</div>

Okay @danielmitterdorfer

Thanks for your response will get back to you with the update..🙂

---

<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 5, 2017, 10:31pm UTC](https://discuss.elastic.co/t/error-could-not-find-or-load-main-class-org-elasticsearch-shield-authc-esusers-tool-esuserstool/56374/18 "2017-07-05T22:31:20Z")

</div>