You can't call keys on an array so that's not going to do anything useful. There's a slight whiff of an XY problem in that your data in the two variables isn't of the same shape (HoH vs AoHoH); it might help if you step back a notch and figure out why your previous step(s) aren't making the same outputs.

The cake is a lie.
The cake is a lie.
The cake is a lie.

In reply to Re^3: Error: when joining two hashes by Fletch
in thread Error: when joining two hashes by Sami_R

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