Updated Katalon studio version from 7.4.0 to 8.0. I download the Katalon 8.0 from the github instead of updating directly from Katalon - Help - Check for Updates. Every time I run a script, I am getting this error: java.lang.ClassFormatError: Illegal method name “dataBasePackage.Sql.connectDB” in class CustomKeywords
I tried to delete Libs & bin folder from project location and open Katalon studio 8.0 again but it didn’t help. I am not able to trouble shoot the issue. Can any one help me here. Thanks in advance.
In this folder stored the compiled class files of your custom keywords. The error indicates that a class file in the folder is in bad format: perhaps the file is there but has 0-bytes. I don’t know why.
By removing the .cache folder, you can let Katalon Studio to build the keyword class cleanly.