Can't locate object method "render_partial"

render_partialは廃止された模様。

my $html = $self->render_partial('index')->to_string;
return $self->render_text(
    HTML::FillInForm::Lite->fill(\$html, $self->req->params),
    format => 'html',
);

これを以下に書き換えると動いた。

my $html = $self->render('index', partial => 1)->to_string;
return $self->render(
    text => HTML::FillInForm::Lite->fill(\$html, $self->req->params),
    format => 'html',
);