# Hello, how should I initialization PreBuiltXPackTransportClient I opened the x - pack
**URL:** https://discuss.elastic.co/t/hello-how-should-i-initialization-prebuiltxpacktransportclient-i-opened-the-x-pack/188983
**Category:** Elasticsearch
**Created:** [July 5, 2019, 1:28am UTC](https://discuss.elastic.co/t/hello-how-should-i-initialization-prebuiltxpacktransportclient-i-opened-the-x-pack/188983 "2019-07-05T01:28:43Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@zhaoyunxing92](https://discuss.elastic.co/u/zhaoyunxing92)
#### Post date: [July 5, 2019, 1:28am UTC](https://discuss.elastic.co/t/hello-how-should-i-initialization-prebuiltxpacktransportclient-i-opened-the-x-pack/188983/1 "2019-07-05T01:28:44Z")
Hello, how should I initialization PreBuiltXPackTransportClient I opened the x - pack
**Elasticsearch version** :
6.5.4
**Plugins installed** :
x-pack
**JVM version** :
jdk1.8
**OS version** :
win10
**Description of the problem including expected versus actual behavior** :
I see official support only to es6.0，[https://www.elastic.co/guide/en/x-pack/current/xpack-settings.html](https://www.elastic.co/guide/en/x-pack/current/xpack-settings.html)
```java
Settings settings = Settings.builder()
// es 集群的名称
.put("cluster.name", "elasticsearch")
.put("client.transport.sniff", "true")
//账号密码
.put("xpack.security.user", "elastic:123456")
.build();
client = new PreBuiltXPackTransportClient(settings)
//添加集群节点
.addTransportAddresses(new InetSocketTransportAddress(InetAddress.getByName("127.0.0.1"), 9300);
```
The exception that occurs after this setting
```auto
java.lang.NoSuchMethodError: org.elasticsearch.common.settings.Settings$Builder.put([Ljava/lang/Object;)Lorg/elasticsearch/common/settings/Settings$Builder
```
---
### Author:  [@zhaoyunxing92](https://discuss.elastic.co/u/zhaoyunxing92)
#### Post date: [July 5, 2019, 2:23am UTC](https://discuss.elastic.co/t/hello-how-should-i-initialization-prebuiltxpacktransportclient-i-opened-the-x-pack/188983/2 "2019-07-05T02:23:13Z")
Has been resolved:grinning:
---
### Author:  [@dadoonet](https://discuss.elastic.co/u/dadoonet)
#### Post date: [July 5, 2019, 6:57am UTC](https://discuss.elastic.co/t/hello-how-should-i-initialization-prebuiltxpacktransportclient-i-opened-the-x-pack/188983/3 "2019-07-05T06:57:28Z")
It'd be great for the community if you can share the code which fixed it.
Also, I'd recommend switching to the rest client as the TransportClient is removed in 8.0.
---
### Author:  [@zhaoyunxing92](https://discuss.elastic.co/u/zhaoyunxing92)
#### Post date: [July 7, 2019, 2:30am UTC](https://discuss.elastic.co/t/hello-how-should-i-initialization-prebuiltxpacktransportclient-i-opened-the-x-pack/188983/4 "2019-07-07T02:30:53Z")
It's caused by version inconsistency
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [August 4, 2019, 2:30am UTC](https://discuss.elastic.co/t/hello-how-should-i-initialization-prebuiltxpacktransportclient-i-opened-the-x-pack/188983/5 "2019-08-04T02:30:56Z")
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