More nim newbie woes, this time echo fmt Possible AOC2021 spoiler

[freeflow]

I have the following code 
    
    
    import strformat
    import sequtils
    import strutils
    import parseutils
    
    import Constants
    import Support
    
    const InputData = "Day04Test.txt"
    
    type
        Board = tuple
            Numbers :seq[int]
            Ranks: seq[seq[int]]
    
    var s :tuple[ Data: seq[string], DrawnNumbers:seq[int], 
BoardNumbers:seq[seq[seq[int]]]]
    
    s.Data = readfile(RawDataPath & InputData).multireplace(("  "," 
")).split("\r\n\r\n",1)
    
    echo fmt" Data {s.Data}"
    
    
    Run

The echo fmt line is underlined from the opening " to the closing ". Two errors 
are reported.

When the cursor is at the opening "
    
    
    template/generic instantiation of `fmt` from here
    template/generic instantiation of `fmt` from here
    
    Error: internal error: 
/home/runner/work/nightlies/nightlies/nim/compiler/vmgen.nim(1576, 22)
    No stack traceback available
    To create a stacktrace, rerun compilation with './koch temp check <file>', 
see https://nim-lang.github.io/Nim/intern.html#debugging-the-compiler for 
details
    
    
    Run

Anywhere else that is underlined 
    
    
    template/generic instantiation of `fmt` from here
    
    Error: internal error: 
/home/runner/work/nightlies/nightlies/nim/compiler/vmgen.nim(1576, 22)
    No stack traceback available
    To create a stacktrace, rerun compilation with './koch temp check <file>', 
see https://nim-lang.github.io/Nim/intern.html#debugging-the-compiler for 
details
    
    
    Run

Would someone be kind enough to point out what needs to be changed (apart from 
deleting all the code :-) ) to eliminate these issues. I've tried but can't 
fathom it.