Error during restoring packages on Ubuntu

[AndreyAkinshin]

I'm trying to install coreclr on Ubuntu 14.04 (https://github.com/dotnet/coreclr/wiki/Linux-instructions)

The command

$ mono nuget.exe restore -Source https://www.myget.org/F/dotnet-corefx/ -PackagesDirectory .

prints:

WARNING: Error: SendFailure (Error writing headers)
WARNING: Error: SendFailure (Error writing headers)
WARNING: Error: SendFailure (Error writing headers)
WARNING: Error: SendFailure (Error writing headers)
WARNING: Error: SendFailure (Error writing headers)
WARNING: Error: SendFailure (Error writing headers)
WARNING: Error: SendFailure (Error writing headers)
WARNING: Error: SendFailure (Error writing headers)
WARNING: Error: SendFailure (Error writing headers)
WARNING: Error: SendFailure (Error writing headers)
WARNING: Error: SendFailure (Error writing headers)
WARNING: Error: SendFailure (Error writing headers)
WARNING: Error: SendFailure (Error writing headers)
WARNING: Error: SendFailure (Error writing headers)
WARNING: Error: SendFailure (Error writing headers)
WARNING: Error: SendFailure (Error writing headers)
WARNING: Error: SendFailure (Error writing headers)
Unable to find version '4.0.0-beta-22703' of package 'System.Console'.
Unable to find version '4.0.0-beta-22703' of package 'System.Diagnostics.Contracts'.
Unable to find version '4.0.10-beta-22703' of package 'System.Diagnostics.Debug'.
Unable to find version '4.0.0-beta-22703' of package 'System.Diagnostics.Tools'.
Unable to find version '4.0.10-beta-22703' of package 'System.Globalization'.
Unable to find version '4.0.10-beta-22703' of package 'System.IO'.
Unable to find version '4.0.0-beta-22703' of package 'System.IO.FileSystem.Primitives'.
Unable to find version '4.0.10-beta-22703' of package 'System.Reflection'.
Unable to find version '4.0.0-beta-22703' of package 'System.Resources.ResourceManager'.
Unable to find version '4.0.20-beta-22703' of package 'System.Runtime'.
Unable to find version '4.0.10-beta-22703' of package 'System.Runtime.Extensions'.
Unable to find version '4.0.0-beta-22703' of package 'System.Runtime.Handles'.
Unable to find version '4.0.20-beta-22703' of package 'System.Runtime.InteropServices'.
Unable to find version '4.0.10-beta-22703' of package 'System.Text.Encoding'.
Unable to find version '4.0.10-beta-22703' of package 'System.Text.Encoding.Extensions'.
Unable to find version '4.0.10-beta-22703' of package 'System.Threading'.
Unable to find version '4.0.10-beta-22703' of package 'System.Threading.Tasks'.

Also I haven't found the dotnet-corefx feed on myget. What should I do for restoring packages?

[akoeplinger]

@AndreyAkinshin are you running the latest Mono 3.12? This is a common issue on earlier versions where the CA root certificates aren't imported in Mono's trust store automatically (you needed to run mozroots --import --sync on the old versions).

[AndreyAkinshin]

@akoeplinger,

are you running the latest Mono 3.12?

Yes.

you need to run mozroots --import --sync

It helps, thanks! Can you update the wiki?

[akoeplinger]

@AndreyAkinshin It should work automatically on Mono 3.12, presuming you've installed from the mono-project.com packages (there's an install hook in those packages that runs the new cert-sync tool, mozroots shouldn't be required anymore). Did you maybe compile Mono from source?

[AndreyAkinshin]

Did you maybe compile Mono from source?

Yes.

[akoeplinger]

That explains it then ;) You should be able to run sudo cert-sync /etc/ssl/certs/ca-certificates.crt in that case to get the same effect.

[MattWhilden]

I've added a "NOTE" in the wiki. Let me know if you think that'll keep others from falling into this cleverly laid trap. 😄

[akoeplinger]

@MattWhilden thanks :) Can we change the first part of the sentence to "This assumes you installed Mono from..." and link to the specifc comment with the solution?

[MattWhilden]

Done. Let me know if anything else needs fixing up.

[saper]

Quick note: besides certificate installation, it seems that Mono fails on TLS when TZ environment variable is unset (should assume UTC). Running env TZ=UTC mono ... fixed the issues :/