A bunch of TS errors at compilation time

[dilame]

I am trying to setup i18next with TypeScript, but get a bunch of errors, here it is:

node_modules/i18next/typescript/t.d.ts:71:46 - error TS2589: Type instantiation is excessively deep and possibly infinite.

71   [Ns in FlatNamespace]: WithOrWithoutPlural<KeysBuilder<Resources[Ns], false>>;
                                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

node_modules/i18next/typescript/t.d.ts:121:30 - error TS2536: Type '$FirstNamespace<ActualNS>' cannot be used to index type 'Keys'.

121       | ParseKeysByKeyPrefix<Keys[$FirstNamespace<ActualNS>], KPrefix>
                                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

node_modules/i18next/typescript/t.d.ts:217:58 - error TS2322: Type '$FirstNamespace<Ns>' is not assignable to type 'string | number | bigint | boolean | null | undefined'.
  Type 'Ns | Ns[0]' is not assignable to type 'string | number | bigint | boolean | null | undefined'.
    Type 'Ns' is not assignable to type 'string | number | bigint | boolean | null | undefined'.
      Type 'Namespace' is not assignable to type 'string | number | bigint | boolean | null | undefined'.
        Type 'symbol' is not assignable to type 'string | number | bigint | boolean | null | undefined'.
          Type 'string | number | symbol' is not assignable to type 'string | number | bigint | boolean | null | undefined'.
            Type 'symbol' is not assignable to type 'string | number | bigint | boolean | null | undefined'.

217   $TFunctionBrand: $IsResourcesDefined extends true ? `${$FirstNamespace<Ns>}` : never;
                                                             ~~~~~~~~~~~~~~~~~~~

node_modules/i18next/index.d.ts:279:22 - error TS2589: Type instantiation is excessively deep and possibly infinite.

279     TKPrefix extends KeyPrefix<ActualNs> = undefined,
                         ~~~~~~~~~~~~~~~~~~~

My TypeScript version is 5.1.3.
I have a complex tsconfig.*.json structure, but here is the most important one – tsconfig.checks.json:

{
  "compilerOptions": {
    // Strict Checks
    "alwaysStrict": true,
    "noImplicitAny": true,
    "strictNullChecks": true,
    "useUnknownInCatchVariables": true,
    "strictPropertyInitialization": true,
    "strictFunctionTypes": true,
    "noImplicitThis": true,
    "strictBindCallApply": true,
    "noPropertyAccessFromIndexSignature": true,
    "noUncheckedIndexedAccess": true,
    "exactOptionalPropertyTypes": true,
    // Linter Checks
    "noImplicitReturns": true,
    "noImplicitOverride": true,
    "forceConsistentCasingInFileNames": true,
    // https://eslint.org/docs/rules/consistent-return ?
    "noFallthroughCasesInSwitch": true,
    // https://eslint.org/docs/rules/no-fallthrough
    "noUnusedLocals": true,
    // https://eslint.org/docs/rules/no-unused-vars
    "noUnusedParameters": true,
    // https://eslint.org/docs/rules/no-unused-vars#args
    "allowUnreachableCode": false,
    // https://eslint.org/docs/rules/no-unreachable ?
    "allowUnusedLabels": false,
    // https://eslint.org/docs/rules/no-unused-labels
    // Base Strict Checks
    "noImplicitUseStrict": false,
    "suppressExcessPropertyErrors": false,
    "suppressImplicitAnyIndexErrors": false,
    "noStrictGenericChecks": false
  }
}

[adrai]

please provide a minimal reproducible example repository...

maybe related:
#1921
#1972