When trying to run the JPetStore demo, you might encounter an error such as:
Propagate files failed. Did not find a file with path: .\DemosFolder\JPetStore_Files\jpetstore-mysql-dataload.sql

Look into your
DemosFolder folder in Nolio. You might find that the
JPetStore_Files folder is missing or empty.
If this is the case, you can manually download the files from this link:
JPetStore_Files.zip.
Extract the content of the zip into
\DemosFolder\JPetStore_Files and try to run the demo again.