Background initialization failed. Stopping SonarQube java.lang.NoSuchMethodError: 'org.sonar.api.server.rule.RulesDefinition$NewRule org.sonar.api.server.rule.RulesDefinition$NewRule.setDebtSubCharacteristic(java.lang.String)'

[readonlyuser1]

After upgrading sonarqube from version 8.9 to version 9.1, sonarqube server does not start with plugin.

Desktop:

OS: ubuntu
SonarQube 9.1 (build 47736)
sonar-cxx-plugin-2.0.5.2867.jar

 ERROR web[][o.s.s.p.Platform] Background initialization failed. Stopping SonarQube
java.lang.NoSuchMethodError: 'org.sonar.api.server.rule.RulesDefinition$NewRule org.sonar.api.server.rule.RulesDefinition$NewRule.setDebtSubCharacteristic(java.lang.String)'
        at org.sonar.squidbridge.rules.SqaleXmlLoader.processRule(SqaleXmlLoader.java:124)
        at org.sonar.squidbridge.rules.SqaleXmlLoader.processSubChar(SqaleXmlLoader.java:92)
        at org.sonar.squidbridge.rules.SqaleXmlLoader.processRoot(SqaleXmlLoader.java:78)
        at org.sonar.squidbridge.rules.SqaleXmlLoader.loadXmlResource(SqaleXmlLoader.java:65)
        at org.sonar.squidbridge.rules.SqaleXmlLoader.load(SqaleXmlLoader.java:52)
        at com.backelite.sonarqube.swift.issues.swiftlint.SwiftLintRulesDefinition.define(SwiftLintRulesDefinition.java:61)
        at org.sonar.server.rule.RuleDefinitionsLoader.load(RuleDefinitionsLoader.java:53)
        at org.sonar.server.rule.RegisterRules.start(RegisterRules.java:119)
        at org.sonar.core.platform.StartableCloseableSafeLifecyleStrategy.start(StartableCloseableSafeLifecyleStrategy.java:40)
        at org.picocontainer.injectors.AbstractInjectionFactory$LifecycleAdapter.start(AbstractInjectionFactory.java:84)
        at org.picocontainer.behaviors.AbstractBehavior.start(AbstractBehavior.java:169)
        at org.picocontainer.behaviors.Stored$RealComponentLifecycle.start(Stored.java:132)
        at org.picocontainer.behaviors.Stored.start(Stored.java:110)
        at org.picocontainer.DefaultPicoContainer.potentiallyStartAdapter(DefaultPicoContainer.java:1016)
        at org.picocontainer.DefaultPicoContainer.startAdapters(DefaultPicoContainer.java:1009)
        at org.picocontainer.DefaultPicoContainer.start(DefaultPicoContainer.java:767)
        at org.sonar.core.platform.ComponentContainer.startComponents(ComponentContainer.java:136)
        at org.sonar.server.platform.platformlevel.PlatformLevel.start(PlatformLevel.java:90)
        at org.sonar.server.platform.platformlevel.PlatformLevelStartup.access$001(PlatformLevelStartup.java:51)
        at org.sonar.server.platform.platformlevel.PlatformLevelStartup$1.doPrivileged(PlatformLevelStartup.java:119)
        at org.sonar.server.user.DoPrivileged.execute(DoPrivileged.java:45)
        at org.sonar.server.platform.platformlevel.PlatformLevelStartup.start(PlatformLevelStartup.java:116)
        at org.sonar.server.platform.PlatformImpl.executeStartupTasks(PlatformImpl.java:198)
        at org.sonar.server.platform.PlatformImpl$1.lambda$doRun$1(PlatformImpl.java:122)
        at org.sonar.server.platform.PlatformImpl$AutoStarterRunnable.runIfNotAborted(PlatformImpl.java:370)
        at org.sonar.server.platform.PlatformImpl$1.doRun(PlatformImpl.java:122)
        at org.sonar.server.platform.PlatformImpl$AutoStarterRunnable.run(PlatformImpl.java:354)
        at java.base/java.lang.Thread.run(Thread.java:829)
2021.09.22 06:14:20 INFO  web[][o.s.p.ProcessEntryPoint] Hard stopping process
2021.09.22 06:14:20 INFO  web[][o.s.s.n.NotificationDaemon] Notification service stopped

[readonlyuser1]

Idean/sonar-swift#295

[sydowma]

Thank you for your reply, I've noticed this issue recently.
I will try to fix this issue.

[sydowma]

fixed @readonlyuser1