Use of uninitialized value in concatenation (.) or string at...

[Devon Young]

What does this mean?? I'm thoroughly puzzled and I've been scouring the net 
for an answer. I've been assuming it means I'm not putting strings together 
correctly, but I can't figure out how to fix it. Here's the errors I'm 
getting, followed by the peice of code that the error is apparently in. I 
can't see what's wrong though. The code looks fine to me...

Use of uninitialized value in substitution (s///) at 
C:\perl_stuff\artists.pl line 120.
Use of uninitialized value in concatenation (.) or string at 
C:\perl_stuff\artists.pl line 122.
Use of uninitialized value in concatenation (.) or string at 
C:\perl_stuff\artists.pl line 123.
Use of uninitialized value in concatenation (.) or string at 
C:\perl_stuff\artists.pl line 124.
Use of uninitialized value in concatenation (.) or string at 
C:\perl_stuff\artists.pl line 125.
Use of uninitialized value in concatenation (.) or string at 
C:\perl_stuff\artists.pl line 126.
Use of uninitialized value in concatenation (.) or string at 
C:\perl_stuff\artists.pl line 126.
Use of uninitialized value in concatenation (.) or string at 
C:\perl_stuff\artists.pl line 126.
Use of uninitialized value in concatenation (.) or string at 
C:\perl_stuff\artists.pl line 126.
Use of uninitialized value in concatenation (.) or string at 
C:\perl_stuff\artists.pl line 126.
Use of uninitialized value in concatenation (.) or string at 
C:\perl_stuff\artists.pl line 126.
Use of uninitialized value in concatenation (.) or string at 
C:\perl_stuff\artists.pl line 127.
Use of uninitialized value in concatenation (.) or string at 
C:\perl_stuff\artists.pl line 128.
Use of uninitialized value in concatenation (.) or string at 
C:\perl_stuff\artists.pl line 129.
Use of uninitialized value in concatenation (.) or string at 
C:\perl_stuff\artists.pl line 130.
Use of uninitialized value in substitution (s///) at 
C:\perl_stuff\artists.pl line 120.
Use of uninitialized value in concatenation (.) or string at 
C:\perl_stuff\artists.pl line 122.
Use of uninitialized value in concatenation (.) or string at 
C:\perl_stuff\artists.pl line 123.
Use of uninitialized value in concatenation (.) or string at 
C:\perl_stuff\artists.pl line 124.
Use of uninitialized value in concatenation (.) or string at 
C:\perl_stuff\artists.pl line 125.
Use of uninitialized value in concatenation (.) or string at 
C:\perl_stuff\artists.pl line 126.
Use of uninitialized value in concatenation (.) or string at 
C:\perl_stuff\artists.pl line 126.
Use of uninitialized value in concatenation (.) or string at 
C:\perl_stuff\artists.pl line 126.
Use of uninitialized value in concatenation (.) or string at 
C:\perl_stuff\artists.pl line 126.
Use of uninitialized value in concatenation (.) or string at 
C:\perl_stuff\artists.pl line 126.
Use of uninitialized value in concatenation (.) or string at 
C:\perl_stuff\artists.pl line 126.
Use of uninitialized value in concatenation (.) or string at 
C:\perl_stuff\artists.pl line 127.
Use of uninitialized value in concatenation (.) or string at 
C:\perl_stuff\artists.pl line 128.
Use of uninitialized value in concatenation (.) or string at 
C:\perl_stuff\artists.pl line 129.
Use of uninitialized value in concatenation (.) or string at 
C:\perl_stuff\artists.pl line 130.

And the code...

my $counter = $_[0];
my $x = 1;
while ($counter < ($_[0]+11)) {
                # must escape double quotes, so there won't be JS errors.
        $artist[$counter][5] =~ s/"/\\"/g;  # line 120
	print BLAH "band[$x][1] = \"$artist[$counter][0]\"\;\n";
	print BLAH "band[$x][2] = \"$artist[$counter][1]\"\;\n";
	print BLAH "band[$x][3] = \"$artist[$counter][2]\"\;\n";
	print BLAH "band[$x][4] = \"$artist[$counter][3]\"\;\n";
	print BLAH "band[$x][5] = 
\"magnet:?xt=urn:sha1:$artist[$counter][4]&amp;dn=$artist[$counter][10]&amp;xs=http://web1.freepeers.net/uri-res/N2R?urn:sha1:$artist[$counter][4]&amp;dn=$artist[$counter][10]&amp;xs=http://web2.freepeers.net/uri-res/N2R?urn:sha1:$artist[$counter][4]&amp;dn=$artist[$counter][10]\"\;\n";;
	print BLAH "band[$x][6] = \"$artist[$counter][5]\"\;\n";
	print BLAH "band[$x][7] = \"$artist[$counter][6]\"\;\n";
	print BLAH "band[$x][8] = \"$artist[$counter][7]\"\;\n";
	print BLAH "band[$x][9] = \"$artist[$counter][8]\"\;\n\n";
	$counter++;
	$x++;
}



Devon

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