Scala Elastic4s java.lang.NoSuchMethodError

我正试图通过Elastic4s连接到ES群集。我正在使用github回购协议中给出的示例：

import com.sksamuel.elastic4s.ElasticClient
import com.sksamuel.elastic4s.ElasticDsl._

object Test extends App {

  val client = ElasticClient.transport(ElasticsearchClientUri(host, port))

  // await is a helper method to make this operation synchronous instead of async
  // You would normally avoid doing this in a real program as it will block your thread
  client.execute { index into "bands" / "artists" fields "name"->"coldplay" }.await

  // we need to wait until the index operation has been flushed by the server.
  // this is an important point - when the index future completes, that doesn't mean that the doc
  // is necessarily searchable. It simply means the server has processed your request and the doc is
  // queued to be flushed to the indexes. Elasticsearch is eventually consistent.
  // For this demo, we'll simply wait for 2 seconds (default refresh interval is 1 second).
  Thread.sleep(2000)

  // now we can search for the document we indexed earlier
  val resp = client.execute { search in "bands" / "artists" query "coldplay" }.await
  println(resp)

}

客户端接受9434上的连接，如下所述-

此外，它会根据所选的构造方式，查找或附加到主机和端口的

elasticsearch:\\\

在运行初始化客户机的行时，我在线程“main”java.lang.NoSuchMethodError:scala.Predef$.refArrayOps（[Ljava/lang/Object；）[Ljava/lang/Object；

很明显我误解了什么。请让我知道我做错了什么

编辑：

作为验证，我有一个到ES的.Net客户端，它使用常规http连接

var node = new Uri(url);
var connectionSettings = new ConnectionSettings(node);
connectionSettings.BasicAuthentication(settings.username,settings.password);
client = new ElasticClient(connectionSettings);

---

我的目标是实现同样的目标。

看起来您的依赖项中缺少scala库。因此，根据您使用的scala版本，您必须让DEP与之匹配。您使用的是什么构建工具

SBT（您不需要这样做，SBT应该根据您的喜好自动完成）

马文

org.scala-lang

"org.scala-lang" % "scala-library" % "YOUR SCALA VERSION"

<dependency>
    <groupId>org.scala-lang</groupId>
    <artifactId>scala-library</artifactId>
    <version>2.12.1</version>
</dependency>