First step, you need to add lombok dependency in your pom.xml, and update maven dependencies to download lombok.<dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> </dependency> And then, if you use Eclipse/STS as your IDE, you need to install lombok. Close...
[ERROR] Unresolveable build extension: Plugin org.mule.tools.maven:mule-maven-plugin:4.4.0 or one of its dependencies could not be resolved: Failure to find org.mule.tools.maven:mule-maven-plugin:jar:4.4.0 inhttps://repository.mulesoft.org/nexus/content/repositories/publ...