Have 2 population in Scenario, in my first Population writing one value to excel and in second using that value from Excel, but I am getting error
Error detected by NeoLoad
Error Code: NL-RUNTIME-02
Message: Internal error occurred playing the request.
Details: java.lang.IllegalStateException: Variable "generated_workorders" does not have values.
Please refer to the documentation for further details and advice
But when i check in excel the data was written correctly in excel
When you start a test during the intialization phase the controller is sending all the data like variable files to the load generators.
I'm not quite sure to have understood what you are doing but if you try to modify the variable content of your File variable at runtime it can't work since they have already been sent to the LG's.
If your goal is to share values between user paths i would suggest you to use a shared queue instead.