Plugin execution not covered by lifecycle configuration: net.alchim31.maven:scala-maven-plugin:3.1.4:testCompileue

[SyCode7]

Hi,

I have cloned this repo as instructed here in order to get familiar with Flink. However, there are the errors in the projects after building and importing into Eclipse IDE. In the Flink Training Exercises project i find errors in the pom Plugin execution not covered by lifecycle configuration: net.alchim31.maven:scala-maven-plugin:3.1.4:testCompile. There are also errors in the project flink-quickstart-java . Some dependencies are not being resolved e.g. ExecutionEnvironment cannot be resolved in the BatchJob class. I have tried to clean the .m2 folder and complied both projects several times but there is no joy yet !

[alpinegizmo]

The quickstart was recently changed, which had an effect here. I got this working by selecting the add-dependencies-for-IDEA maven profile.

[SyCode7]

@alpinegizmo thanks for the heads up. The challenge is that I am using eclipse, I am not sure if there is such a feature on eclipse ....are you aware of any ?

[alpinegizmo]

Yes, I did this with Eclipse. I added this section to <build> <plugins> in my pom file:

	<plugin>
	   <groupId>org.codehaus.mojo</groupId>
	   <artifactId>exec-maven-plugin</artifactId>
	   <version>1.6.0</version>
	   <executions>
	     <execution>
	       <goals>
	        <goal>java</goal>
	       </goals>
	    </execution>
	   </executions>
	   <configuration>
	      <mainClass>org.apache.flink.flink_quickstart_java.BatchJob</mainClass>
	   </configuration>
	</plugin>

and then created a Maven Build run configuration with

Goals: org.codehaus.mojo:exec-maven-plugin:java
Profiles: add-dependencies-for-IDEA

[SyCode7]

@alpinegizmo i have tried on eclipse, I have the following error :

[INFO] --- exec-maven-plugin:1.6.0:java (default-cli) @ flink-java-project --- [WARNING] java.lang.RuntimeException: No data sinks have been created yet. A program needs at least one sink that consumes data. Examples are writing the data set or printing it. at org.apache.flink.api.java.ExecutionEnvironment.createProgramPlan(ExecutionEnvironment.java:943) at org.apache.flink.api.java.ExecutionEnvironment.createProgramPlan(ExecutionEnvironment.java:921) at org.apache.flink.api.java.LocalEnvironment.execute(LocalEnvironment.java:85) at org.apache.flink.quickstart.BatchJob.main(BatchJob.java:64) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.codehaus.mojo.exec.ExecJavaMojo$1.run(ExecJavaMojo.java:282) at java.lang.Thread.run(Thread.java:745) [INFO] ------------------------------------------------------------------------ [INFO] BUILD FAILURE

[alpinegizmo]

Yes, the skeleton batch job isn't complete. You could modify it to be like this, and it will work:

public class BatchJob {
    public static void main(String[] args) throws Exception {
	final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();

	env.fromElements(1, 2, 3).print();
    }
}

If instead you want to try streaming, do this:

public class StreamingJob {
    public static void main(String[] args) throws Exception {
	StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();

	env.fromElements(1, 2, 3).print();
	env.execute();
    }
}

[SyCode7]

@alpinegizmo many thanks. your solution works ! I realized that I have to ignore the errors shown in eclipse .....very strange.