Jenkins pipeline: No such DSL method

With this code i got an error in Jenkins pipeline. I don`t get it why? Am I missing something?

node {
   stage 'test'
   def whatThe = someFunc('textToFunc')
   {def whatThe2 = someFunc2('textToFunc2')}
}


def someFunc(String text){
    echo text
    text
}
def someFunc2(String text2){
    echo text2
    text2
}

Error:

java.lang.NoSuchMethodError: **No such DSL method 'someFunc'** found among [archive, bat, build, catchError, checkout, deleteDir, dir, echo, emailext, emailextrecipients, error, fileExists, git, input, isUnix, load, mail, node, parallel, properties, pwd, readFile, readTrusted, retry, sh, sleep, stage, stash, step, svn, timeout, timestamps, tool, unarchive, unstash, waitUntil, withCredentials, withEnv, wrap, writeFile, ws]
        at org.jenkinsci.plugins.workflow.cps.DSL.invokeMethod(DSL.java:124)
        at org.jenkinsci.plugins.workflow.cps.CpsScript.invokeMethod(CpsScript.java:117)
        at groovy.lang.MetaClassImpl.invokeMethodOnGroovyObject(MetaClassImpl.java:1280)
        at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1174)
        at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1024)
        at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.call(PogoMetaClassSite.java:42)
        at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48)
        at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:113)
        at com.cloudbees.groovy.cps.sandbox.DefaultInvoker.methodCall(DefaultInvoker.java:15)
        at WorkflowScript.run(WorkflowScript:4)
        at ___cps.transform___(Native Method)
        at com.cloudbees.groovy.cps.impl.ContinuationGroup.methodCall(ContinuationGroup.java:55)
        at com.cloudbees.groovy.cps.impl.FunctionCallBlock$ContinuationImpl.dispatchOrArg(FunctionCallBlock.java:106)
        at com.cloudbees.groovy.cps.impl.FunctionCallBlock$ContinuationImpl.fixArg(FunctionCallBlock.java:79)
        at sun.reflect.GeneratedMethodAccessor878.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at com.cloudbees.groovy.cps.impl.ContinuationPtr$ContinuationImpl.receive(ContinuationPtr.java:72)
        at com.cloudbees.groovy.cps.impl.ClosureBlock.eval(ClosureBlock.java:40)
        at com.cloudbees.groovy.cps.Next.step(Next.java:58)
        at com.cloudbees.groovy.cps.Continuable.run0(Continuable.java:154)
        at org.jenkinsci.plugins.workflow.cps.CpsThread.runNextChunk(CpsThread.java:164)
        at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.run(CpsThreadGroup.java:360)
        at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.access$100(CpsThreadGroup.java:80)
        at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup$2.call(CpsThreadGroup.java:236)
        at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup$2.call(CpsThreadGroup.java:226)
        at org.jenkinsci.plugins.workflow.cps.CpsVmExecutorService$2.call(CpsVmExecutorService.java:47)
        at java.util.concurrent.FutureTask.run(Unknown Source)
        at hudson.remoting.SingleLaneExecutorService$1.run(SingleLaneExecutorService.java:112)
        at jenkins.util.ContextResettingExecutorService$1.run(ContextResettingExecutorService.java:28)
        at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
        at java.util.concurrent.FutureTask.run(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)
    Finished: FAILURE

remove the extra brackets from around the sumfunc2 invocation:

node {
   stage 'test'
   def whatThe = someFunc('textToFunc')
   def whatThe2 = someFunc2('textToFunc2')
}

def someFunc(String text){
    echo text
    text
}
def someFunc2(String text2){
    echo text2
    text2
}

Update:

In Groovy if a method's last argument is of type Closure, then when calling the method the closure can be outside of the brackets like:

def foo(whatever, Closure c) {}

// Can be invoked as
foo(whatever, {
    // This is the second argument of foo of type Closure
})

// It is also the same as writing
foo(whatever) {
    // This is the second argument of foo of type Closure
}

The reason that the original throws is because the following code

def whatThe = someFunc('textToFunc')
{def whatThe2 = someFunc2('textToFunc2')}

is the same code as

def whatThe = someFunc('textToFunc') {
    def whatThe2 = someFunc2('textToFunc2')
}

This means that what the interpreter will be looking for is

someFunc(String text, Closure c)

and there is no such method

Since this answer is the first one I found when I lookup the "No such DSL method" message, I would like to add that it might also be the interface that is not matching. In my case the first parameter was a list, but I tried to call the method with an array. So please check your interface matches what you expect, and your parameters are passed in correctly.

Jenkins pipeline: No such DSL method

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