Hey!

I followed the code style check 
https://cwiki.apache.org/confluence/display/NIFI/Contributor+Guide
And add checkstyle plugin to IntelliJ, but when I wanna add nifi-checkstyle.xml 
https://gist.github.com/alopresto/67f43552c225468b92fcc9239072d737 to the 
configuration list, IntelliJ show me this error:

com.puppycrawl.tools.checkstyle.api.CheckstyleException: cannot initialize 
module TreeWalker - TreeWalker is not allowed as a parent of LineLength Please 
review 'Parent Module' section for this Check in web documentation if Check is 
standard.
                at 
com.puppycrawl.tools.checkstyle.Checker.setupChild(Checker.java:477)
                at 
com.puppycrawl.tools.checkstyle.api.AutomaticBean.configure(AutomaticBean.java:198)
                at 
org.infernus.idea.checkstyle.service.cmd.OpCreateChecker.execute(OpCreateChecker.java:61)
                at 
org.infernus.idea.checkstyle.service.cmd.OpCreateChecker.execute(OpCreateChecker.java:26)
                at 
org.infernus.idea.checkstyle.service.CheckstyleActionsImpl.executeCommand(CheckstyleActionsImpl.java:130)
                at 
org.infernus.idea.checkstyle.service.CheckstyleActionsImpl.createChecker(CheckstyleActionsImpl.java:60)
                at 
org.infernus.idea.checkstyle.service.CheckstyleActionsImpl.createChecker(CheckstyleActionsImpl.java:51)
                at 
org.infernus.idea.checkstyle.checker.CheckerFactoryWorker.run(CheckerFactoryWorker.java:46)
Caused by: com.puppycrawl.tools.checkstyle.api.CheckstyleException: TreeWalker 
is not allowed as a parent of LineLength Please review 'Parent Module' section 
for this Check in web documentation if Check is standard.
                at 
com.puppycrawl.tools.checkstyle.TreeWalker.setupChild(TreeWalker.java:148)
                at 
com.puppycrawl.tools.checkstyle.api.AutomaticBean.configure(AutomaticBean.java:198)
                at 
com.puppycrawl.tools.checkstyle.Checker.setupChild(Checker.java:472)
                ... 7 more

How to fix it? I downloaded the newest checkstyle 5.32.0.

Thanks!

Best,
Sunny

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