Failed to execute goal org.apache.maven.plugins:maven-enforcer-plugin

Question

I got a maven spring project but when I try to run it, I can\'t... some idea about it...
The next is the Error Message:

BUILD FAILURE
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Answer 1

one thing that may cause this problem is that in your project in a POM file required java or maven version is set. you should find it... but how ? maybe you couldn't find any enforcer in your project like me ... (I had the same problem and I became confused because enforcer plugin was not defined in my projects POMs, so I couldn't find it).

enforcer plugin is in your "effective pom" and you should check it. Effective pom is a configuration file made from super pom + project pom. maven use this configuration file to execute the relevant goal. It helps developers to specify minimum configuration detail in his/her pom.xml. Although configurations can be overridden easily.

For showing your effective pom there are 2 ways: 1- use maven command, run this command :

 mvn help:effective-pom

2- use your IDE : in Maven window right click on your project node and select show effective POM(it depends on your IDE).

after you find what your forces are you can find it in your project and change it. for me, My effective POM had enforcer plugin which its requireMavenVersion rule for using Java was 1.8. so I changed my project JDK version to 1.8 and luckily the problem was solved.

I hope this answer could help you.