Package mismatch

Anonymous Monk has asked for the wisdom of the Perl Monks concerning the following question:

Here's my code:

use  Geography::NationalGrid::IE;

       my $point1 = new Geography::NationalGrid::IE(
                GridReference => 'M 345132',
        );
        my $point2 = new Geography::NationalGrid::IE(
                Latitude => 53.8,
                Longitude => -7.5
        );
        print "Point 1 is " . $point->latitude . " degrees north\n";
[download]

This gives me the error: Can't locate object method "deg2rad" via package "Geography::NationalGrid" at C: /Perl/site/lib/Geography/NationalGrid/IE.pm line 7.

How can I solve this?

Thanks!

Comment on Package mismatch Download Code

Replies are listed 'Best First'.
Re: Package mismatch by JavaFan (Canon) on Dec 29, 2010 at 18:01 UTC
You create $point1 and $point2, but you use $point. That could be a cut-and-paste error, but it also may be the culprit. And in general, you're better off using the `Package::Foo->new()` [download] syntax instead of the indirect object method.	[reply] [d/l]
Re^2: Package mismatch by Anonymous Monk on Dec 29, 2010 at 18:13 UTC
Thanks! If my perl file contains only: `use Geography::NationalGrid::IE;` [download] I still get the error. Any ideas.	[reply] [d/l]
Re^3: Package mismatch by JavaFan (Canon) on Dec 29, 2010 at 18:39 UTC
I downloaded the package, read the manual page, and saw the manual page uses: `use Geography::NationalGrid;` [download] So, I tried: `$ perl -MGeography::NationalGrid::IE -we1 Can't locate object method "deg2rad" via package "Geography::NationalG +rid" at /opt/perl/lib/site_perl/5.12.2/Geography/NationalGrid/IE.pm l +ine 7. BEGIN failed--compilation aborted at /opt/perl/lib/site_perl/5.12.2/Ge +ography/NationalGrid/IE.pm line 7. Compilation failed in require. BEGIN failed--compilation aborted. $ $ perl -MGeography::NationalGrid -we1 $` [download]	[reply] [d/l] [select]
Re: Package mismatch by Anonyrnous Monk (Hermit) on Dec 29, 2010 at 18:12 UTC
How can I solve this? Also use `Geography::NationalGrid`, i.e. `use Geography::NationalGrid; use Geography::NationalGrid::IE; ...` [download] (This is required for the constant declarations such as `use constant MIN_LONG => Geography::NationalGrid->deg2rad('-11d 12m 0s +');` [download] in Geography::NationalGrid::IE. — The module should probably load Geography::NationalGrid itself (as it obviously depends on it), but it doesn't...)	[reply] [d/l] [select]