use lib "/users/<myusername>/perl/Tk-DKW-0.03/blib"; is correct. Perl wants to load Tk/Menustrip.pm, so the directory name must end in blib, not blib/Tk.

Better solution: don't edit the example and simply set the include path from the commandline: 

$ cd /users/<myusername>/perl/Tk-DKW-0.03
$ perl -Mblib examples/checkbox.pl

[download]
See blib.

Update: this half-installed directory setup is only useful for testing. If you want to use Tk-DKW productively, you must install the distribution. local::lib helps you to set up the necessary environment variables so that the make install will target your home directory, not the system location where you have no write permission.

In reply to Re: Problem understanding how to use modules by daxim
in thread Problem understanding how to use modules by texan4ever

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