ERROR: Processing failed due to a bug in the code.

[Bilal Yasar]

ERROR: Processing failed due to a bug in the code. Please report this to jenkins...@googlegroups.com
java.lang.NullPointerException: no workspace from node com.cloudbees.hudson.plugins.SwarmSlave@7d16caa2 which is computer com.cloudbees.hudson.plugins.SwarmComputer@104e2180 and has channel null
	at hudson.tasks.CommandInterpreter.perform(CommandInterpreter.java:76)
	at hudson.tasks.CommandInterpreter.perform(CommandInterpreter.java:66)
	at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:20)
	at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:825)
	at hudson.maven.MavenModuleSetBuild$MavenModuleSetBuildExecution.build(MavenModuleSetBuild.java:909)
	at hudson.maven.MavenModuleSetBuild$MavenModuleSetBuildExecution.doRun(MavenModuleSetBuild.java:860)
	at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:606)
	at hudson.model.Run.execute(Run.java:1684)
	at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:529)
	at hudson.model.ResourceController.execute(ResourceController.java:88)
	at hudson.model.Executor.run(Executor.java:232)

any idea?

i am getting this error time to time.