EsVectorStore Search Error

[lynickyoung]

java.lang.NoSuchMethodError: 'co.elastic.clients.elasticsearch._types.KnnSearch$Builder co.elastic.clients.elasticsearch._types.KnnSearch$Builder.k(java.lang.Integer)'

[ElvisZhang0]

upgrade your spring boot version like 3.3.10

[l-trotta]

@lynickyoung either update spring boot to a version > 3.3.0, or force the elasticsearch-java to 8.13.3 or greater. As explained in the documentation, older versions of spring boot were still using a version of the elasticsearch java client where KnnSearch wasn't implemented

[bdgould]

On a simple app with just these dependencies:

<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>3.5.4</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

<properties>
        <java.version>24</java.version>
        <spring-ai.version>1.0.0</spring-ai.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.ai</groupId>
            <artifactId>spring-ai-starter-mcp-client</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.ai</groupId>
            <artifactId>spring-ai-starter-model-openai</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-configuration-processor</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-webflux</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.ai</groupId>
            <artifactId>spring-ai-advisors-vector-store</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.ai</groupId>
            <artifactId>spring-ai-starter-model-chat-memory</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.ai</groupId>
            <artifactId>spring-ai-starter-vector-store-elasticsearch</artifactId>
        </dependency>
        <dependency>
            <groupId>org.gitlab4j</groupId>
            <artifactId>gitlab4j-api</artifactId>
            <version>6.1.0</version>
        </dependency>

        <dependency>
            <groupId>io.projectreactor</groupId>
            <artifactId>reactor-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
    </dependencies>
    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.ai</groupId>
                <artifactId>spring-ai-bom</artifactId>
                <version>${spring-ai.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

I seem to get a similar error though. I seem to see elasticsearch 8.18.1

***************************
APPLICATION FAILED TO START
***************************

Description:

An attempt was made to call a method that does not exist. The attempt was made from the following location:

    org.springframework.ai.vectorstore.elasticsearch.ElasticsearchVectorStore.lambda$createIndexMapping$13(ElasticsearchVectorStore.java:334)

The following method did not exist:

    'co.elastic.clients.elasticsearch._types.mapping.DenseVectorProperty$Builder co.elastic.clients.elasticsearch._types.mapping.DenseVectorProperty$Builder.similarity(java.lang.String)'

The calling method's class, org.springframework.ai.vectorstore.elasticsearch.ElasticsearchVectorStore, was loaded from the following location:

    jar:file:/Users/ben.gould/.m2/repository/org/springframework/ai/spring-ai-elasticsearch-store/1.0.0/spring-ai-elasticsearch-store-1.0.0.jar!/org/springframework/ai/vectorstore/elasticsearch/ElasticsearchVectorStore.class

The called method's class, co.elastic.clients.elasticsearch._types.mapping.DenseVectorProperty$Builder, is available from the following locations:

    jar:file:/Users/ben.gould/.m2/repository/co/elastic/clients/elasticsearch-java/8.18.1/elasticsearch-java-8.18.1.jar!/co/elastic/clients/elasticsearch/_types/mapping/DenseVectorProperty$Builder.class

The called method's class hierarchy was loaded from the following locations:

    co.elastic.clients.elasticsearch._types.mapping.DenseVectorProperty.Builder: file:/Users/ben.gould/.m2/repository/co/elastic/clients/elasticsearch-java/8.18.1/elasticsearch-java-8.18.1.jar
    co.elastic.clients.elasticsearch._types.mapping.PropertyBase.AbstractBuilder: file:/Users/ben.gould/.m2/repository/co/elastic/clients/elasticsearch-java/8.18.1/elasticsearch-java-8.18.1.jar
    co.elastic.clients.util.WithJsonObjectBuilderBase: file:/Users/ben.gould/.m2/repository/co/elastic/clients/elasticsearch-java/8.18.1/elasticsearch-java-8.18.1.jar
    co.elastic.clients.util.ObjectBuilderBase: file:/Users/ben.gould/.m2/repository/co/elastic/clients/elasticsearch-java/8.18.1/elasticsearch-java-8.18.1.jar

[l-trotta]

hey @bdgould I created a new project using the dependencies you provided and everything works fine for me, are you sure there isn't any other component that has a transitive dependency to elasticsearch-java resulting in maven importing an older version of the client?

[bdgould]

@l-trotta , oddly enough it sorta just resolved itself... I added and removed the elastic 8.18.1 dependencies and it started working fine! I'm guessing something was cached 😄 . Thanks!