If I have packages which have been deployed using the project deployment model, I can use the Execute Package task to execute other packages IN THE SAME PROJECT, after setting the ReferenceType to 'Project Reference'.
If I want to execute a package which is not in the same project, I need to set ReferenceType to 'External Reference' and then select either file system or SQL Server (ie, MSDB) as the location.
But what if I want to execute a package in another project - can the Execute Package task be configured to do that?