"The build phase is set to "MSBuild" mode (default), but no Visual Studio project or solution files were found"

thibaut.barrere's Avatar


18 Jan, 2018 09:05 PM


I'm using AppVeyor to test a Ruby data processing & ETL framework (http://www.kiba-etl.org) on Windows.

Just today, the build started failing repeatedly:


I'm getting the following error:

The build phase is set to "MSBuild" mode (default), but no Visual Studio project
or solution files were found in the root directory. If you are not building Visual Studio
project switch build mode to "Script" and provide your custom build command.

I didn't change the AppVeyor configuration recently:


I wonder if something changed that may explain this at AppVeyor? (maybe a default configuration in the build?)

I also recently rotated my GitHub authorisations, so maybe there could be a link too.


  1. 1 Posted by Ilya Finkelshte... on 18 Jan, 2018 09:27 PM

    Ilya Finkelshteyn's Avatar

    GitHub authorization is most probable reason for this. I believe your appveyor.yml cannot be read and not respected. Re-authorize (revoke and authorize again) GitHub at https://ci.appveyor.com/account, should help.

  2. 2 Posted by thibaut.barrere on 18 Jan, 2018 09:40 PM

    thibaut.barrere's Avatar

    Thanks Ilya, this fixed it!

  3. thibaut.barrere closed this discussion on 18 Jan, 2018 09:40 PM.

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