[SDC] Input/Output delay for All ports -> script writing

I tried to run the ferst example:

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set chan [open "TQ_all_clocks.rpt" "w"]

foreach_in_collection element [all_clocks] {

puts $chan [concat $element : [get_object_info -name $element]]

}

close $chan

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The 'all_clocks' command is not recognized (ran from the Tcl Console). I've got the following:

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

Error: quartus_fit

Error: quartus_sta

Error: while executing

Error:"all_clocks"

Error: invoked from within

Error:"foreach_in_collection element [all_clocks] { puts $chan [concat $element : [get_object_info -name $element]]}"

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So, what's the problem? How could be fixed?

Thank you!