I feel like I must be missing something because the error seems obvious to me. Whenever SkylineRunner fails, you should first look at your output for a line that begins with "Error:" near the end of the output.
In this case, that line reads:
Error: to export a scheduled method, you must first choose a retention time predictor in Peptide Settings / Prediction, or import results for all peptides in the document.
Is this error message enough for you to understand what the problem is? Were you expecting that the imported data would cover all of your peptides?
To better understand this outcome, I would simply remove all of your --exp arguments and let Skyline succeed importing the data. Then open the resulting .sky file in Skyline. There you can try File > Export > Method to manually reproduce this error message, which I would expect you to get again from the UI when you try to export a scheduled method.
Then you can use the UI to figure out what peptide(s) in your document are not getting enough results information to have a retention time for scheduling. You should be able to do this pretty easily with View > Retention Times > Regression > Score to Run. Anything without a measured retention time will show up as a point on the x-axis, and you can just click on it to have Skyline select the peptide in the targets view. This is covered in the Targeted Method Refinement tutorial (page 10 - Missing Data):
Hope this helps. Thanks for posting the output.