I expect that the problem is not $wave_tcl_file, but rather is $all_shary_for_subs. I assume you are using threads::shared and $all_shary_for_subs is declared with :shared. As the docs say,
Shared variables can only store scalars, refs of shared variables, or refs of shared data

Without seeing more information around your block, I would guess you are trying to store an anonymous hash in your shared variable.

#11929 First ask yourself `How would I do this without a computer?' Then have the computer do it the same way.

In reply to Re: Error: Invalid value for shared scalar when assigning a scalar by kennethk
in thread Error: Invalid value for shared scalar when assigning a scalar by ISAI student

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