Intellij-idea – Building with Lombok’s @Slf4j and Intellij: Cannot find symbol log

intellij-idealombokslf4j

I have a maven project that builds with no problems from the command line. However, when I build it with IntelliJ, I get the error:

java: FileName.java:89: cannot find symbol
symbol  : variable log

There is no log defined or imported in the java file, but there is a

@Slf4j
final public class FileName {

statement before the class body which should define the log class.

In the project structure window, classes for:

Maven: org.slf4j:jcl-over-slf4j:1.6.1
Maven: org.slf4j:slf4j-api:1.6.6
Maven: org.slf4j:slf4j-log4j12:1.6.6
Maven: org.slf4j:slf4j-simple:1.6.6

are listed under libraries and are indicated as having been downloaded and available.

Any idea why this would build with maven through the command line, but not through IntelliJ and how to resolve the issue?

Best Answer

In addition to having Lombok plugin installed, also make sure that the "Enable annotation processing" checkbox is ticked under:

Preferences > Compiler > Annotation Processors

Note: starting with IntelliJ 2017, the "Enable Annotation Processing" checkbox has moved to:

Settings > Build, Execution, Deployment > Compiler > Annotation Processors
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