I guess the 'run' method should be called upon an object of some sort. Is
'$factory' an object?
On 2013/11/5 上午1:14, "Peng Wang"  wrote:

> I am trying to use Pal2Nal through the scripts:
>
> use Bio::Tools::Run::Alignment::Pal2Nal;
> $aln = $factory->run($pep_aln, $dnafile);
>
> The system returned the error message:
>
> Can't call method "run" on an undefined value at ...
>
>
> Anybody knows what the problem is and how I should fix it?
>
> Thanks in advance.
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