Thank you for pointing that out. Indeed it was a mistake.

However, I have now changed the variable call to ${select_input_file} (and updated my original post), but the error of "missing operand" still persists.

In reply to Re: Tcl::Tk getOpenFile Not Working - Missing File Operand by phillc
in thread Tcl::Tk getOpenFile Not Working - Missing File Operand by phillc

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