cperl does not create TAGS.

[Pawel]

Hallo Group Members.

Perl->Tools->TAGS->Create Tags For Current File for current perl buffer creates 
almost empty TAGS file.
Literally:

my.perl.pl,0

But, 
prompt$ etags rtm.run.pl
ends with "full" TAGS file.

I also tried it with:
cperl-use-syntax-table-text-property-for-tags's value is nil

emacs-version's value is "21.4.1"
cperl-version's value is "5.22"

*Messages* buffer:
Scanning file /home/user/my.perl.pl ...
Scanning buffer for index (  0%)
Scanning buffer for index ( 15%)
Scanning buffer for index ( 22%)
Scanning buffer for index ( 30%)
Scanning buffer for index ( 37%)
Scanning buffer for index (100%)
Scanning file /home/user/my.perl.pl finished
Wrote /home/user/TAGS


have You got Idea what might be the reason?

Regards,
Pawel