ENGINE-09005 Could not parse BPMN process. Errors: * One of the attributes 'class', 'delegateExpression', 'type', or 'expression' is mandatory on serviceTask

Hello, I am trying to integrate emails to my process but I constantly keep getting the following error:

“One of the attributes ‘class’, ‘delegateExpression’, ‘type’, or ‘expression’ is mandatory on serviceTask. | resource Reisestelle.bpmn | line 163 | column 56 [ deploy-error ]”

Currently following those tutorials:

But am I still getting erros whenever I try to deploy my process.
This is what part of my process looks like:





The XML files that I created to execute the service task.

<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">

  <modelVersion>4.0.0</modelVersion>

  <groupId>com.example.workflow</groupId>
  <artifactId>newcamunda</artifactId>
  <version>1.0.0-SNAPSHOT</version>
  

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>11</maven.compiler.source>
    <maven.compiler.target>11</maven.compiler.target>
  </properties>

  <dependencyManagement>
    <dependencies>
      <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-dependencies</artifactId>
        <version>2.5.4</version>
        <type>pom</type>
        <scope>import</scope>
      </dependency>

      <dependency>
        <groupId>org.camunda.bpm</groupId>
        <artifactId>camunda-bom</artifactId>
        <version>7.16.0</version>
        <scope>import</scope>
        <type>pom</type>
      </dependency>
    </dependencies>
  </dependencyManagement>

  <dependencies>
    <dependency>
      <groupId>org.camunda.bpm.springboot</groupId>
      <artifactId>camunda-bpm-spring-boot-starter-rest</artifactId>
    </dependency>

    <dependency>
      <groupId>org.camunda.bpm.springboot</groupId>
      <artifactId>camunda-bpm-spring-boot-starter-webapp</artifactId>
    </dependency>

    <dependency>
      <groupId>org.camunda.bpm</groupId>
      <artifactId>camunda-engine-plugin-spin</artifactId>
    </dependency>

    <dependency>
      <groupId>org.camunda.spin</groupId>
      <artifactId>camunda-spin-dataformat-all</artifactId>
    </dependency>

    <dependency>
      <groupId>com.h2database</groupId>
      <artifactId>h2</artifactId>
    </dependency>

    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-jdbc</artifactId>
    </dependency>
    
    <dependency>
  <groupId>org.camunda.bpm.extension</groupId>
  <artifactId>camunda-bpm-mail-core</artifactId>
  <version>1.2.0</version>
</dependency>



I would be glad of any answers that can help me. Thank you

Hello @Salva ,

as the connector is not a default feature of Camunda Platform, you will have to enable it. Simply add to your dependencies connect-core and engine-plugin-connect.

This will enable the connector.

I hope this helps

Jonathan

Hello, thank you for the answer. Updated my POM File by adding the dependencies that you mentioned but I am still getting the same error.

<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">

  <modelVersion>4.0.0</modelVersion>

  <groupId>com.example.workflow</groupId>
  <artifactId>newcamunda</artifactId>
  <version>1.0.0-SNAPSHOT</version>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>11</maven.compiler.source>
    <maven.compiler.target>11</maven.compiler.target>

  </properties>


  <dependencyManagement>
    <dependencies>
      <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-dependencies</artifactId>
        <version>2.5.4</version>
        <type>pom</type>
        <scope>import</scope>
      </dependency>

      <dependency>
        <groupId>org.camunda.bpm</groupId>
        <artifactId>camunda-engine-plugin-spin</artifactId>
      </dependency>

      <dependency>
        <groupId>org.camunda.spin</groupId>
        <artifactId>camunda-spin-dataformat-json-jackson</artifactId>
      </dependency>

      <dependency>
        <groupId>org.camunda.bpm</groupId>
        <artifactId>camunda-engine-plugin-connect</artifactId>
        <version>7.15.0-alpha5</version>
      </dependency>

      <dependency>
        <groupId>org.camunda.bpm</groupId>
        <artifactId>camunda-bom</artifactId>
        <version>7.16.0</version>
        <scope>import</scope>
        <type>pom</type>
      </dependency>
    </dependencies>
  </dependencyManagement>

  <dependencies>
    <dependency>
      <groupId>org.camunda.bpm.springboot</groupId>
      <artifactId>camunda-bpm-spring-boot-starter-rest</artifactId>
    </dependency>



    <dependency>
      <groupId>org.camunda.bpm.extension</groupId>
      <artifactId>camunda-bpm-mail-core</artifactId>
      <version>1.2.0</version>
    </dependency>

    <dependency>
      <groupId>org.camunda.connect</groupId>
      <artifactId>camunda-connect-http-client</artifactId>
      <version>1.3.0</version>
    </dependency>

    <dependency>
      <groupId>org.camunda.connect</groupId>
      <artifactId>camunda-connect-soap-http-client</artifactId>
      <version>1.3.0</version>
    </dependency>



    <dependency>
      <groupId>org.camunda.bpm</groupId>
      <artifactId>camunda-engine-plugin-connect</artifactId>
      <version>7.12.0</version>
    </dependency>

    <dependency>
      <groupId>org.camunda.bpm.springboot</groupId>
      <artifactId>camunda-bpm-spring-boot-starter-webapp</artifactId>
    </dependency>

    <dependency>
      <groupId>com.h2database</groupId>
      <artifactId>h2</artifactId>
    </dependency>

    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-jdbc</artifactId>
    </dependency>


  </dependencies>


  <build>
    <plugins>
      <plugin>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-maven-plugin</artifactId>
        <version>2.5.4</version>
      </plugin>
    </plugins>
  </build>

</project>

Try adding the dependency to check whether this error is fixed.

  <dependency>
    <groupId>org.camunda.connect</groupId>
    <artifactId>camunda-connect-connectors-all</artifactId>
  </dependency>

https://docs.camunda.org/manual/latest/reference/connect/

2 Likes

Hi,thank you for the answer.
I also added the dependency and I still am getting the same error. Could the problem be by the the information that I’ve put in the properties panel → the section Input/Output?

Hi quick update, it works now!
Added your mentioned dependecy and plus both of those dependecies:

Thanks :slight_smile:

1 Like

Good to hear, :slight_smile:

1 Like