Unable to run SonarLint analysis in PyCharm

Environment:

  • Java: JetBrains s.r.o. 11.0.10
  • OS: Windows 10 amd64
  • IDE: PyCharm 2020.3.5
  • SonarLint: 7.4.0.60471

And a thorough description of the problem / question:
On running the analysis using the SonarLint plugin I get following stack trace:

Error running SonarLint analysis
java.lang.NoClassDefFoundError: org/apache/commons/io/FileUtils
	at org.sonarlint.intellij.core.SonarLintEngineFactory.migrate(SonarLintEngineFactory.java:122)
	at org.sonarlint.intellij.core.SonarLintEngineFactory.getSonarLintHome(SonarLintEngineFactory.java:106)
	at org.sonarlint.intellij.core.SonarLintEngineFactory.configureCommonEngine(SonarLintEngineFactory.java:98)
	at org.sonarlint.intellij.core.SonarLintEngineFactory.createEngine(SonarLintEngineFactory.java:83)
	at org.sonarlint.intellij.core.DefaultEngineManager.getStandaloneEngine(DefaultEngineManager.java:132)
	at org.sonarlint.intellij.core.ProjectBindingManager.getFacade(ProjectBindingManager.java:97)
	at org.sonarlint.intellij.analysis.SonarLintAnalyzer.analyzeModule(SonarLintAnalyzer.java:78)
	at org.sonarlint.intellij.analysis.Analysis.analyzePerModule(Analysis.java:392)
	at org.sonarlint.intellij.analysis.Analysis.doRun(Analysis.java:159)
	at org.sonarlint.intellij.analysis.Analysis.run(Analysis.java:94)
	at org.sonarlint.intellij.tasks.TaskRunnerKt$startBackgroundable$task$1.run(TaskRunner.kt:53)
	at com.intellij.openapi.progress.impl.CoreProgressManager$TaskRunnable.run(CoreProgressManager.java:962)
	at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$runProcessWithProgressAsync$5(CoreProgressManager.java:472)
	at com.intellij.openapi.progress.impl.ProgressRunner.lambda$submit$3(ProgressRunner.java:235)
	at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$runProcess$2(CoreProgressManager.java:178)
	at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:658)
	at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:610)
	at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:65)
	at com.intellij.openapi.progress.impl.CoreProgressManager.runProcess(CoreProgressManager.java:165)
	at com.intellij.openapi.progress.impl.ProgressRunner.lambda$submit$4(ProgressRunner.java:235)
	at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1700)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1$1.run(Executors.java:668)
	at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1$1.run(Executors.java:665)
	at java.base/java.security.AccessController.doPrivileged(Native Method)
	at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1.run(Executors.java:665)
	at java.base/java.lang.Thread.run(Thread.java:834)

Could not find similar issue. The plugin was running fine and stopped at some point - did not notice right away, so cannot really tell what was the trigger.

Hello @vlade44,

Thank you for the report, I confirm this should not be happening, and as a result, I created this bug ticket SLI-885.

I suggest updating your PyCharm to a more recent version; this should fix this error from happening in the future.