# Error relating to C++ compiler when running ./configure on Windows

**URL:** <https://community.mrtrix.org/t/error-relating-to-c-compiler-when-running-configure-on-windows/454>\
**Category:** Uncategorized\
**Tags:** installation, windows\
**Created:** [September 19, 2016, 4:22am UTC](https://community.mrtrix.org/t/error-relating-to-c-compiler-when-running-configure-on-windows/454 "2016-09-19T04:22:33Z")\
**Posts on this page:** 1\
**Showing post:** 16

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**Author:** ![jdtournier](https://community.mrtrix.org/user_avatar/community.mrtrix.org/jdtournier/32/2594_2.png) [@jdtournier](https://community.mrtrix.org/u/jdtournier)\
**Post date:** [October 11, 2017, 7:11am UTC](https://community.mrtrix.org/t/error-relating-to-c-compiler-when-running-configure-on-windows/454/16 "2017-10-11T07:11:05Z")

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OK, it does look like there are issues with recent versions of MSYS2, as reported in [this post](https://community.mrtrix.org/t/configure-and-build-fails-on-windows-install/323/4?u=jdtournier) and [this one](https://community.mrtrix.org/t/error-error-compiling-eigen3-application/1215?u=jdtournier)… Can I ask you to try the following:

- bring your MSYS2 installation up to date ([instructions here](https://github.com/msys2/msys2/wiki/MSYS2-installation#iii-updating-packages))

- bring your _MRtrix3_ installation up to date:

- try running `configure` & `build` using the MSYS2 version of `python` (rather than the MinGW version):

If that still doesn’t work, please post your `configure.log` file - it might give us a hint as to where the problem might be…

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_[View the full topic](https://community.mrtrix.org/t/error-relating-to-c-compiler-when-running-configure-on-windows/454)._