Teamcity CMake Plugin Error

CMake plugin has been installed in Teamcity with two runner types:

• CMake configure
• CMake build

It is failing to start any of those runners with this exception:

"java.lang.NoClassDefFoundError: Could not initialize class jetbrains.buildServer.cmakerunner.regexparser.ParserLoader at jetbrains.buildServer.cmakerunner.agent.output.RegexParsersBasedOutputListener.<init>(RegexParsersBasedOutputListener.java:46) at jetbrains.buildServer.cmakerunner.agent.output.RegexParsersBasedOutputListener.<init>(RegexParsersBasedOutputListener.java:56) at jetbrains.buildServer.cmakerunner.agent.CMakeBuildBS.getListeners(CMakeBuildBS.java:102) at jetbrains.buildServer.agent.runner2.SingleCommandLineBuildSessionAdapter.sessionStarted(SingleCommandLineBuildSessionAdapter.java:28) at jetbrains.buildServer.agent.runner2.GenericCommandLineBuildProcess.start(GenericCommandLineBuildProcess.java:56) at jetbrains.buildServer.agent.impl.buildStages.runnerStages.start.CallRunnerStage.doBuildStage(CallRunnerStage.java:58) at jetbrains.buildServer.agent.impl.buildStages.RunnerStagesExecutor$1.callStage(RunnerStagesExecutor.java:25) at jetbrains.buildServer.agent.impl.buildStages.RunnerStagesExecutor$1.callStage(RunnerStagesExecutor.java:18) at jetbrains.buildServer.agent.impl.buildStages.StagesExecutor.callRunStage(StagesExecutor.java:76) at jetbrains.buildServer.agent.impl.buildStages.StagesExecutor.doStages(StagesExecutor.java:35) at jetbrains.buildServer.agent.impl.buildStages.RunnerStagesExecutor.doStages(RunnerStagesExecutor.java:18) at jetbrains.buildServer.agent.impl.buildStages.startStages.steps.RunnerContextExecutor.callRunnerStages(RunnerContextExecutor.java:43) at jetbrains.buildServer.agent.impl.buildStages.startStages.steps.StepExecutor.processNextStep(StepExecutor.java:25) at jetbrains.buildServer.agent.impl.buildStages.startStages.steps.ForEachBuildRunnerStage.executeRunnerStep(ForEachBuildRunnerStage.java:138) at jetbrains.buildServer.agent.impl.buildStages.startStages.steps.ForEachBuildRunnerStage.runStep(ForEachBuildRunnerStage.java:123) at jetbrains.buildServer.agent.impl.buildStages.startStages.steps.ForEachBuildRunnerStage.executeBuildRunners(ForEachBuildRunnerStage.java:83) at jetbrains.buildServer.agent.impl.buildStages.startStages.steps.ForEachBuildRunnerStage.doBuildStage(ForEachBuildRunnerStage.java:44) at jetbrains.buildServer.agent.impl.buildStages.BuildStagesExecutor$1.callStage(BuildStagesExecutor.java:31) at jetbrains.buildServer.agent.impl.buildStages.BuildStagesExecutor$1.callStage(BuildStagesExecutor.java:24) at jetbrains.buildServer.agent.impl.buildStages.StagesExecutor.callRunStage(StagesExecutor.java:76) at jetbrains.buildServer.agent.impl.buildStages.StagesExecutor.doStages(StagesExecutor.java:35) at jetbrains.buildServer.agent.impl.buildStages.BuildStagesExecutor.doStages(BuildStagesExecutor.java:24) at jetbrains.buildServer.agent.impl.BuildRunActionImpl.doStages(BuildRunActionImpl.java:79) at jetbrains.buildServer.agent.impl.BuildRunActionImpl.runBuild(BuildRunActionImpl.java:55) at jetbrains.buildServer.agent.impl.BuildAgentImpl.doActualBuild(BuildAgentImpl.java:313) at jetbrains.buildServer.agent.impl.BuildAgentImpl.access$100(BuildAgentImpl.java:56) at jetbrains.buildServer.agent.impl.BuildAgentImpl$1.run(BuildAgentImpl.java:276) at java.base/java.lang.Thread.run(Thread.java:834)"

So this appears to happen even before CMakeList.txt is being processed. 

I suspect this may be an issue with the plugin installation and something is amiss.

Is anyone able to shed any light?

Thanks