Start by testing whether you can achieve what you are trying to do through the UI. Can you actually export a method to:
You may get a more descriptive error or just find that this is not specific to the command-line interface.
I will note that you need to have MassLynx software installed on the computer running SkylineDailyRunner and you need to have an instrument set up on the computer. If you are doing this on a computer that is not set up to be an instrument computer, then you need to set up a fake instrument.
Here is another support thread which may be of interest:
Hope this helps. Thanks for using the Skyline command-line interface.