Error when creating a new procedure in HANA Studio:
Creating a new procedure is deprecated in the Modeler perspective. Use the Repositories or Project Explorer view in Development perspective to create Stored Procedures (.hdbprocedure).

Solutions:
Solution 1: This problem occurs in HANA Studio 2.3+ or above, it is recommended to use HANA Studio 2.3+ or below, which can be developed normally
Solution 2: Use HANA Web IDE (SAP HANA Web-based Development Workbench) for development