hello support,

when i build my project, it give me an error :

Some problems were encountered while building the effective model for com.dukascopy.dds2:JForex-SDK:jar:2.22.1
'build.plugins.plugin.version' for org.apache.maven.plugins:maven-compiler-plugin is missing. @ line 65, column 12

how to fix it please.

this is my pom file:

<?xml version="1.0" encoding="UTF-8"?>
<!-- 
The following is an example Maven pom file which allows the user to 
to build JForex-SDK by using the latest version of  dependencies 
from dukascopy public repository with command: mvn clean install
-->
<project xmlns="https://maven.apache.org/POM/4.0.0" xmlns:xsi="https://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="https://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.dukascopy.dds2</groupId>
   <artifactId>JForex-SDK</artifactId>
   <version>2.22.1</version>
   <name>JForex-SDK</name>
   <description></description>
   <organization>
      <name>DUKASCOPY (Suisse) SA</name>
      <url>https://www.dukascopy.com</url>
   </organization>
   <repositories>
      <repository>
         <id>dc_public</id>
         <name>Dukascopy public repository</name>
         <url>https://www.dukascopy.com/client/jforexlib/publicrepo/</url>
      </repository>
   </repositories>
    <dependencies>
      <dependency>
         <groupId>com.dukascopy.dds2</groupId>
         <artifactId>DDS2-jClient-JForex</artifactId>
         <!-- find the latest available version here: 
            https://publicrepo.site.dukascopy.com/jforexlib/publicrepo/com/dukascopy/dds2/DDS2-jClient-JForex/ 
         -->
         <version>2.22.1</version>
         <exclusions>
            <exclusion>
               <groupId>org.slf4j</groupId>
               <artifactId>slf4j-jdk14</artifactId>
            </exclusion>
         </exclusions>
      </dependency>
      <!-- find the latest available version here: 
         https://publicrepo.site.dukascopy.com/jforexlib/publicrepo/com/dukascopy/api/JForex-API/
      -->
      <dependency>
         <groupId>com.dukascopy.api</groupId>
         <artifactId>JForex-API</artifactId>
         <version>2.7.7</version>
         <classifier>sources</classifier>
      </dependency>
      <dependency>
         <groupId>org.slf4j</groupId>
         <artifactId>slf4j-log4j12</artifactId>
         <version>1.6.4</version>
         <optional>true</optional>
      </dependency>
   </dependencies>
   <build>
       <sourceDirectory>src</sourceDirectory>
       <resources>
         <resource>
            <directory>rc</directory>
         </resource>
      </resources>
      <plugins>
         <plugin>
            <artifactId>maven-compiler-plugin</artifactId>
            <inherited>true</inherited>
            <configuration>
               <source>1.6</source>
               <target>1.6</target>
               <fork>true</fork>
               <encoding>UTF-8</encoding>
            </configuration>
         </plugin>
      </plugins>
   </build>
</project>

Is it an error or actually a warning? Does it prevent you from running the Main.java? See here more on the warning, you can also try to check if the project works without explicitly defining the compiler plugin, i.e. try removing the plugins tag and rebuilding the project.

it's happen when i try to compile the entire project
i don't know if it's an error or a warning, it isn't notify.
i removed the plugins tag, all is good.

but What is a useful plugin if I can remove?

eric

If you don't define it, it uses the default one - the one from the effective-pom

ok thanks