Sap object class cannot be assigned to package in eclipse SAP BTP Trial

[ABAPDos]

I have a SAP BTP trial for 90 days.  I use Eclipse. I'v already created few cleasses that works not bad.

But since past few weeks when i'm trying to creat new abap class and assign it to a package, I get the following  error:

SAP object CLAS <my_class_name>  CANNOT BE ASSIGNED TO PACKAGE ZD..........

I tryed many different packages .

Anybody knows how to fix it ?

[wolfgang_woehrle]

Hi

on customer side, the name of your package and the name of your development objects must start with Y or Z. In your screenshot, the Z or Y is missing in the class name.

You can find the similar questions here and here.

Kind regards,

Wolfgang