how to fix groovy lang MissingMethodException No signature of method

Question

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

User · Answer

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

User · Answer

In my case it was simply that I had a variable named the same as a function  Example  def cleanCache   functionReturningABoolean    if  cleanCache        echo  quot Clean cache option is true  do not uninstall previous features   urls quot      uninstallCmd    quot  quot              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

User · Answer

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

User · Answer

To help other bug-hunters  I had this error because the function didn t exist    I had a spelling error

User · Answer

Because you are passing three arguments to a four arguments method  Also  you are not using the passed closure   If you want to specify the operations to be made on top of the source contents  then use a closure  It would be something like this   def copyAndReplaceText source  dest  closure       dest write closure  source text          And you can keep your usage as  copyAndReplaceText source  dest       it replaceAll  Visa    Passport           If you will always swap strings  pass both  as your method signature already states   def copyAndReplaceText source  dest  targetText  replaceText       dest write source text replaceAll targetText  replaceText      copyAndReplaceText source  dest   Visa    Passport

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

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