"I am not familiar with these errors so far since I am trying to script with warnings and strict from now on to become a better programmer."

Try using the diagnostics pragma for more descriptive error messages: 

use strict;
use warnings;
use diagnostics;

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As an example, I posted this earlier today: 

$ perl -Mstrict -Mwarnings -le 'for (0..1) { our $x = $_ } print $x'
Variable "$x" is not imported at -e line 1.
Global symbol "$x" requires explicit package name at -e line 1.
Execution of -e aborted due to compilation errors.

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This is probably not overly useful if you've just started learning Perl; however, with diagnostics you get a more verbose explanation of the problems: 

$ perl -Mstrict -Mwarnings -le 'use diagnostics; for (0..1) { our $x =
+ $_ } print $x'
Variable "$x" is not imported at -e line 1 (#1)
    (W misc) With "use strict" in effect, you referred to a global var
+iable
    that you apparently thought was imported from another module, beca
+use
    something else of the same name (usually a subroutine) is exported
+ by
    that module.  It usually means you put the wrong funny character o
+n the
    front of your variable.
    
Global symbol "$x" requires explicit package name at -e line 1.
Execution of -e aborted due to compilation errors (#2)
    (F) You've said "use strict" or "use strict vars", which indicates
+ 
    that all variables must either be lexically scoped (using "my" or 
+"state"), 
    declared beforehand using "our", or explicitly qualified to say 
    which package the global variable is in (using "::").
    
Uncaught exception from user code:
    Global symbol "$x" requires explicit package name at -e line 1.
Execution of -e aborted due to compilation errors.
 at -e line 1.

[download]

See also: perldiag

-- Ken

In reply to Re: why does this perl routine error? by kcott
in thread why does this perl routine error? by robertw

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