Dear Sir/Madam!When I am trying to learn I face a problem, that if the task mention an example code that can be found in the folder of /lnr/.... I cannot reach them. I do not know why I can not find these objects/classes. If you have an advice please...

Dear Sir/Madam,Currently I'm facing a problem at the beginning of the course. I couldn't found a service key at the material that I can use to connect to ABAP service instance. (It is mentioned at How to Create an ABAP Cloud Project demo).Thank you i...