.NET Core 2.0 Preview 2 won't install in Ubuntu 16.04.2

[MaximoTrinidad]

Thanks for your interest in .NET Core.

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I have follow both installation instructions in GitHub and the .NET Core Download page. I'm getting the same error message:

Unpacking dotnet-sdk-2.0.0-preview2-006497 (2.0.0-preview2-006497-1) ...
dpkg: error processing archive /var/cache/apt/archives/dotnet-sdk-2.0.0-preview2-006497_2.0.0-preview2-006497-1_amd64.deb (--unpack):
 trying to overwrite '/usr/share/dotnet/store/x64/netcoreapp2.0/microsoft.identitymodel.protocols/2.1.3/lib/netstandard1.4/Microsoft.IdentityModel.Protocols.dll', which is also in package dotnet-dev-2.0.0-preview1-005977 2.0.0-preview1-005977-1
dpkg-deb: error: subprocess paste was killed by signal (Broken pipe)
Processing triggers for man-db (2.7.5-1) ...
Errors were encountered while processing:
 /var/cache/apt/archives/dotnet-sdk-2.0.0-preview2-006497_2.0.0-preview2-006497-1_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

Any suggestions!

[Petermarcu]

If you remove Preview1, perhaps it will get rid of the problem? dotnet-dev-2.0.0-preview1-005977

/cc @livarcocc it looks like we're installing the same thing to the same location and getting a conflict.

[MaximoTrinidad]

Thanks @Petermarcu! I'll give it a try and see if uninstalling the previous version will clear the issue.
:)

[Petermarcu]

Thanks @MaximoTrinidad let us know.

[MaximoTrinidad]

HURRAY!!! @Petermarcu

Someone need to add this additional step in the instruction:

1. remove previous version:

sudo apt remove dotnet-dev-2.0.0-preview1-005977

2. Then, install the latest one:

sudo apt-get install dotnet-sdk-2.0.0-preview2-006497

I got it loaded now.

Thanks for the tip!

[Petermarcu]

Glad to hear it! I've copied this issue to the dotnet/cli repo because you definitely shouldnt have had to uninstall preview1. I'm going to close this issue here now. Thanks for reporting it!

[Petermarcu]

@richlander @leecow can we get a note on the instructions that Preview1 of the sdk needs to be uninstalled?

[leecow]

Notes added to the download page, known issues doc and made the requirement more obvious on the Preview getting started page.

[MaximoTrinidad]

@Petermarcu!! Awesome! Thanks again.
:)