[groovy] how to fix groovy.lang.MissingMethodException: No signature of method:

I am trying to use this method without a closure

def copyAndReplaceText(source, dest, targetText, replaceText){
    dest.write(source.text.replaceAll(targetText, replaceText))
}

def source = new File('C:/geretd/resumebak.txt') //Hello World
def dest = new File('C:/geretd/resume.txt') //blank

copyAndReplaceText(source, dest){
    it.replaceAll('Visa', 'Passport!!!!')
}

but when I run it I get the following error:

groovy.lang.MissingMethodException: No signature of method: ConsoleScript3.copyAndReplaceText() is applicable for argument types: (java.io.File, java.io.File, ConsoleScript3$_run_closure1) values: [C:\geretd\resumebak.txt, C:\geretd\resume.txt, ...]
Possible solutions: copyAndReplaceText(java.lang.Object, java.lang.Object, java.lang.Object, java.lang.Object)

at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.unwrap(ScriptBytecodeAdapter.java:55)

at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.callCurrent(PogoMetaClassSite.java:78)

at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:49)

at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:133)

at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:149)

What am I doing wrong?

This question is related to groovy

The answer is


To help other bug-hunters. I had this error because the function didn't exist.

I had a spelling error.


In my case it was simply that I had a variable named the same as a function.

Example:

def cleanCache = functionReturningABoolean()

if( cleanCache ){
    echo "Clean cache option is true, do not uninstall previous features / urls"
    uninstallCmd = ""
    
    // and we call the cleanCache method
    cleanCache(userId, serverName)
}
...

and later in my code I have the function:

def cleanCache(user, server){

 //some operations to the server

}

Apparently the Groovy language does not support this (but other languages like Java does). I just renamed my function to executeCleanCache and it works perfectly (or you can also rename your variable whatever option you prefer).


This may also be because you might have given classname with all letters in lowercase something which groovy (know of version 2.5.0) does not support.

class name - User is accepted but user is not.


You can also get this error if the objects you're passing to the method are out of order. In other words say your method takes, in order, a string, an integer, and a date. If you pass a date, then a string, then an integer you will get the same error message.