# System is unknown to cmake MINGW64\_NT-6.3-9600

**URL:** https://discourse.cmake.org/t/system-is-unknown-to-cmake-mingw64-nt-6-3-9600/6331
**Category:** Development
**Created:** [August 25, 2022, 12:15am UTC](https://discourse.cmake.org/t/system-is-unknown-to-cmake-mingw64-nt-6-3-9600/6331 "2022-08-25T00:15:07Z")
**Posts on this page:** 2
**Page:** 1

<div class="post-metadata">

### Author: ![veganaiZe](https://discourse.cmake.org/user_avatar/discourse.cmake.org/veganaize/32/2706_2.png) [@veganaiZe](https://discourse.cmake.org/u/veganaiZe)
#### Post date: [August 25, 2022, 12:15am UTC](https://discourse.cmake.org/t/system-is-unknown-to-cmake-mingw64-nt-6-3-9600/6331/1 "2022-08-25T00:15:07Z")

</div>

I get the following message every time I make a project in MSYS2 on Windows 8.1 (64-bit)…

```auto
System is unknown to cmake, create:
Platform/MINGW64_NT-6.3-9600 to use this system, please post your config file on discourse.cmake.org so it can be added to cmake

```

…Which config file should I post?

_Thanks!_

---

<div class="post-metadata">

### Author: ![veganaiZe](https://discourse.cmake.org/user_avatar/discourse.cmake.org/veganaize/32/2706_2.png) [@veganaiZe](https://discourse.cmake.org/u/veganaiZe)
#### Post date: [August 26, 2022, 2:56am UTC](https://discourse.cmake.org/t/system-is-unknown-to-cmake-mingw64-nt-6-3-9600/6331/2 "2022-08-26T02:56:46Z")

</div>

Nevermind. Fixed by installing & running the (non-msys) cmake binary which is appropriate for the current (mingw) environment.