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Running setup fails to install dotnetcore.

See original GitHub issue

I uninstalled the existing version of coreCLR on my machine. I have a windows 7 64 bit machine with professional version of Visual Studio 2015.

When I attempted to install vc_redist.x64.exe (Microsoft Visual C++ 2015 Redistributable (x64) - 14.0.23026), I got an error in the logs that says Condition 'VersionNT64 >= v6.0 OR (VersionNT64 = v5.2 AND ServicePackLevel >= 1)' evaluates to true. Error 0x80070666: Cannot install a product when a newer version is installed. When I attempted to install the DotNetCore.1.0.0.RC2-SDK.Preview1-x64.exe, it throws an error stating that "Another version of this product is already installed"

So I am unable to install this.

Environment data

dotnet --info output:


'dotnet' is not recognized as an internal or external command,
operable program or batch file.

Issue Analytics

State:
Created 7 years ago
Comments:6 (1 by maintainers)

Top GitHub Comments

4reactions

esargentcommented, Jun 16, 2016

FIXED: I found there was a known issue with Tooling Preview (not explicitly SDK) after installing Visual Studio 2015 RC3 which has the same symptom: https://msdn.microsoft.com/en-us/vs-knownissues/vs2015-update3-rc

Specifically, you have to Repair the Visual C++ 2015 Redistributable (both x86 and x64) via the “Programs and Feature” Window (a.k.a. Add/Remove Programs)

This allowed me to install the SDK and the tooling preview. I hope it helps others as well.

0reactions

TheRealPiotrPcommented, Dec 13, 2016

Thanks @ekiliqua. Do also try VS 2017 RC if you get a chance. The tooling has come a long way since Preview 1!