SAB 12.3 MAC Build PWA

I am not sure if this is a bug (it happened this morning - I am not sure if this was my 1st PWA build since. the 12.3 release, but I think so.

▲ [WARNING] Cannot find base config file “./.svelte-kit/tsconfig.json” [tsconfig.json]

tsconfig.json:2:15:
  2 │     "extends": "./.svelte-kit/tsconfig.json",
    ╵                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

error during build:
Could not load svelte.config.js: config.kit.paths.base option must either be the empty string or a root-relative path that starts but doesn’t end with ‘/’. See Configuration • Docs • Svelte