Anyone know anything about vim debugger?

I am trying the vim debugger for the first time and
Tried running it to debug a perl program.

My code was in my 'bin' directory and I needed
to have it operate in a different directory where the data
was.

So in vim, I 'cd'd to the data dir ... but when I tried to
run the debugger, it said no file to debug?

What did I do wrong?


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