Weather File Error:GenOpt3.1

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Hello, I am trying to run GenOpt 3.1 for optimizing green roof parameters in E+ 8.4. I went through the tutorials created by Julien Marrec. Somehow it is not able to find the weather file that I have entered and it is giving me the following error. I checked that the weather file was in my working directory and I tried to change the path and the weather file itself a number of times plus there are no spaces in my weather file name. Also, there is no error when I run the idf standalone. The error says:

Assigning 4 threads for simulations. Initialize. genopt.lang.OptimizerException: C:\Users.hp\Videos\GenOpt\tmp-genopt-run-1\example.err: Following error was found: Error on line 29: * Fatal * Error condition occurred. Previous Severe Errors cause termination.

Simulation working directory : 'C:\Users.hp\Videos\GenOpt\tmp-genopt-run-1' Command string : 'cmd /C ""C:\EnergyPlusV8-4-0\RunEPlus.bat" "example" "USA_GA_Atlanta-Hartsfield-Jackson.Intl.AP.722190_TMY3""'

GenOpt terminated with error. See logfile for further information.

Error on line 29

* Severe * Weather Simulation requested, but no weather file attached. * Severe * GetNextEnvironment: Errors found in getting a new environment * Fatal * Error condition occurred. Previous Severe Errors cause termination.

What could be possibly wrong?