[TCL] query_collection -> why not working?

Hi All,

I'm working on the following example:

https://www.altera.com/support/support-resources/design-examples/design-software/tcl/all_virtual_pins.html

Here is the script:

load_package flow
proc make_all_pins_virtual {} {    execute_module -tool map    set name_ids     foreach_in_collection name_id $name_ids {        set pin_name         post_message "Making VIRTUAL_PIN assignment to $pin_name"        set_instance_assignment -to $pin_name -name VIRTUAL_PIN ON    }    export_assignments }

The script itself works without problems.

But, when I try to list as the contents of the created collection using the query_collection command, I receive the following error message:

> query_collection

Error:ERROR: Quartus Prime Tcl command "query_collection" is only available for use in the following executables:

Error: quartus_fit

Error: quartus_sta

Error: while executing

Error:"query_collection _collection0"

Why? What's the problem? How can I list the created collection of the pins?

Thank you!