itch.io

I keep getting this error
Error when starting application:
System.ComponentModel.Win32Exception (2): The system cannot find the file specified.
at
System.Diagnostics.Process.StartWithCreateProcess(ProcessStartInfo startInfo)
at System.Diagonostics.Process.Start()
at System.Diagnostics.Process.Start(ProcessStartInfo startInfo)
at RedlabsUpdateUtility.MainWindow.StartApplication()

You're not supposed to put the textures folder in, you convert the ,jar to .zip and extract it, after that you go into the assets folder and then copy the folder named, "minecraft" and paste it into resources\java\assets