We are using Splunk Plugin Extension so that we can send Console output logs of a Pipeline job to Splunk.

Here is one such sample pipeline job which is working fine but as soon as I add sendSplunkConsoleLog {  } to it then it starts throwing Groovy Compilation errors.

pipeline{
        agent{ node

}
    

sendSplunkConsoleLog {    
     
    // some block
        stages {
 stage ('Checkout') {
        steps

 }
        }
       
 }  
   
}

Console output log

Started by user Raghav, Pushpendra
Running in Durability level: MAX_SURVIVABILITY
org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
WorkflowScript: 4: Undefined section "sendSplunkConsoleLog" @ line 4, column 6.
        sendSplunkConsoleLog {  
        ^

WorkflowScript: 1: Missing required section "stages" @ line 1, column 1.
   pipeline{
   ^

2 errors

at org.codehaus.groovy.control.ErrorCollector.failIfErrors(ErrorCollector.java:310)
at org.codehaus.groovy.control.CompilationUnit.applyToPrimaryClassNodes(CompilationUnit.java:1085)
at org.codehaus.groovy.control.CompilationUnit.doPhaseOperation(CompilationUnit.java:603)
at org.codehaus.groovy.control.CompilationUnit.processPhaseOperations(CompilationUnit.java:581)
at org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:558)
at groovy.lang.GroovyClassLoader.doParseClass(GroovyClassLoader.java:298)
at groovy.lang.GroovyClassLoader.parseClass(GroovyClassLoader.java:268)
at groovy.lang.GroovyShell.parseClass(GroovyShell.java:688)
at groovy.lang.GroovyShell.parse(GroovyShell.java:700)
at org.jenkinsci.plugins.workflow.cps.CpsGroovyShell.doParse(CpsGroovyShell.java:131)
at org.jenkinsci.plugins.workflow.cps.CpsGroovyShell.reparse(CpsGroovyShell.java:125)
at org.jenkinsci.plugins.workflow.cps.CpsFlowExecution.parseScript(CpsFlowExecution.java:560)
at org.jenkinsci.plugins.workflow.cps.CpsFlowExecution.start(CpsFlowExecution.java:521)
at org.jenkinsci.plugins.workflow.job.WorkflowRun.run(WorkflowRun.java:330)
at hudson.model.ResourceController.execute(ResourceController.java:97)
at hudson.model.Executor.run(Executor.java:421)
Finished: FAILURE