t.v4.d.ts:189:47 - error TS1005: '?' expected

[maxkomarychev]

💥 Regression Report

A clear and concise description of what the regression is.

A project compiled with typescript 4.2.4 throws the following error:

node_modules/i18next/typescript/t.v4.d.ts:189:47 - error TS1005: '?' expected.

189     ? Key extends `${infer NKey extends number}`
                                                  ~

Last working version

The truth is I don't really know if it ever worked but I assume so based on similar issue in the past #2090

Worked up to version: X.X.X

Stopped working in version: Y.Y.Y

To Reproduce

Steps to reproduce the behavior:

// Paste your code here

Expected behavior

A clear and concise description of what you expected to happen.

// Paste the results here

Your Environment

• runtime version: i.e. node 18
• i18next version: i.e. 23.10.0 and 23.5.1
• os: Mac
• any other relevant information

[adrai]

update your TS version to be > v4.9.x

[sarakhosropour]

I have the same problem. No solution?

[adrai]

Provide a minimal reproducible example repository

[camilosw]

I have the same issue with typescript 4.3.5. After checking with multiple versions, I found that the minimum version to solve it is 4.7.x. I updated to 4.7.4 and now it works fine.