Dear Monks,

What is the cause the error message: 'Modification of non-creatable hash value attempted, subscript "_" at ...'? perldiag is not very helpful. I'm loading hashes from a YAML document and am trying to see if some entries are invalid (say $u->{foo}), and then undef-ing them ($u->{foo} = undef) if they are. On some values of $u, this always happen and the invalid entries happen to be undef ($u->{foo} = undef). This stops happening if I set $u->{foo} to an empty string ('').

In reply to Modification of non-creatable hash value attempted by dgaramond2

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