Fatal error when installing Microsoft .NET Core 1.0.0 VS 2015 Tooling preview 2


I try to install the DotNetCore.1.0.0-VS2015Tools.Preview2.0.1 package

I am having the following error message : 0x80070643 Fatal error during installation

Here is the part of the log where it seems to fail :

[236C:2014][2016-08-24T10:37:57]i338: Acquiring package: DotNetVersionManager_x64, payload: DotNetVersionManager_x64, download from: https://download.microsoft.com/download/2/F/8/2F864C4E-6980-4AFC-B64E-0AC04837FD6C/packages/DotNetVersionManager-x64_rc2_39.msi [26B0:27A8][2016-08-24T10:37:58]i305: Verified acquired payload: DotNetVersionManager_x64 at path: C:\ProgramData\Package Cache.unverified\DotNetVersionManager_x64, moving to: C:\ProgramData\Package Cache{4EC36977-42B9-3C18-A692-B9DEE7404484}v1.0.11123.0\packages\DotNetVersionManager-x64_rc2_39.msi. [236C:2014][2016-08-24T10:37:58]w343: Prompt for source of package: AspNetCoreLocalFeed, payload: AspNetCoreLocalFeed, path: C:\ProgramData\Package Cache\packages\AspNetCoreLocalFeed_rc2_39.msi [236C:2014][2016-08-24T10:37:58]i338: Acquiring package: AspNetCoreLocalFeed, payload: AspNetCoreLocalFeed, download from: https://download.microsoft.com/download/2/F/8/2F864C4E-6980-4AFC-B64E-0AC04837FD6C/packages/AspNetCoreLocalFeed_rc2_39.msi [26B0:26B4][2016-08-24T10:37:58]e000: Error 0x80070643: Failed to install MSI package. [26B0:26B4][2016-08-24T10:37:58]e000: Error 0x80070643: Failed to execute MSI package. [236C:0874][2016-08-24T10:37:58]e000: Error 0x80070643: Failed to configure per-machine MSI package.

I tried to repair VS 2015 Update 3, but i still can't install the Tooling preview 2.0.1.

I then tried the SKIP_VSU_CHECK=1 method does not work.

I tried to disable the firewall and it doesn't work.

I have VS 2015 Entreprise working on my machine (Windows 7 x64) I already installed the .NET Core 1.0.0 SDK successfully

Any suggestions?

asked on Stack Overflow Aug 24, 2016 by Bidasse • edited May 23, 2017 by Community

1 Answer


Ok, I found the solution alone : I switched the language of VS 2015 from french to english (Installing a package) Then the Tooling preview installation worked properly !

I hope it might help

answered on Stack Overflow Aug 24, 2016 by Bidasse

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