"math" option in compilerconfig defaults not working

[pmonty]

I am trying to compile some rather large files and was getting
SyntaxError: Error evaluating function 'floor': argument must be a number in \assets\css\less\searchbox.less LRM C:\Projects\LRM\LRM\assets\less\custom.less 232

so added the math option always to my compilerconfig.json.defaults file:

{
  "compilers": {
    "less": {
      "autoPrefix": "",
      "cssComb": "none",
      "ieCompat": true,
      "strictUnits": false,
      "relativeUrls": true,
      "rootPath": "",
      "sourceMapRoot": "",
      "sourceMapBasePath": "",
      "sourceMap": false,
      "math": "always"
    },

but now I get:
--math=always is deprecated and will be removed in the future.

I started a thread over here since it might be a visual studio thing but they told me to come here.
failwyn/WebCompiler#68

Less version: I imagine would be the latest stable as I installed the most recent version of the extension in visual studio
Visual Studio 2022
Windows

[iChenLei]

cc @matthew-dean

[pmonty]

Also will just mention that according to these docs it should still be supported right?
https://lesscss.org/usage/#less-options-math

[pmonty]

Was testing just by chance to unblock myself if any of the other options worked. They all showed other errors relating to the actual styling but no deprecated message.

[pmonty]

Little bit more investigation during some downtime and looks like its just a warning?

less.js/packages/less/bin/lessc

Line 582 in 7491578

console.warn('--math=always is deprecated and will be removed in the future.');

so why does my build fail then?

[matthew-dean]

This isn't possible to evaluate without seeing an example repo. The failure would be unrelated to the warning, unless you're using a build system that treats warnings as failures. @iChenLei can you add a requirement to bug reports that a reproducible example is provided?

[iChenLei]

@matthew-dean Ok, sir