The latest version of checkstyle is much higher - 8.24 according to their release notes [1]. You should not have to explicitly download the tool however, as importing the checkstyle file into IntelliJ should be sufficient. I have updated the gist you pointed to [2] with the exact contents of my current checkstyle.xml file. Please try with this version.
[1] https://checkstyle.sourceforge.io/releasenotes.html <https://checkstyle.sourceforge.io/releasenotes.html> [2] https://gist.github.com/alopresto/67f43552c225468b92fcc9239072d737/revisions <https://gist.github.com/alopresto/67f43552c225468b92fcc9239072d737/revisions> Andy LoPresto alopre...@apache.org alopresto.apa...@gmail.com PGP Fingerprint: 70EC B3E5 98A6 5A3F D3C4 BACE 3C6E F65B 2F7D EF69 > On Sep 26, 2019, at 10:48 AM, Sunny Zhang <sunny.zh...@microsoft.com.INVALID> > wrote: > > 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
